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Thermo Scientific 42iQTL, Instruction Manual

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Contents 

Thermo Scientific 

42iQTL Instruction Manual     

v

 

Scrubbing ......................................................................................  4-3

 

Gas Phase Titrator............................................................................ 4-3

 

Flow Controllers ........................................................................... 4-3

 

Pressure Regulator ......................................................................... 4-3

 

Ozone Generator .......................................................................... 4-4

 

Diverter Valve ............................................................................... 4-4

 

Reaction Chamber ........................................................................ 4-4

 

Mixing Chamber ........................................................................... 4-4

 

Output Manifold .......................................................................... 4-5

 

Reagents ...........................................................................................  4-5

 

NO Concentration Standard ......................................................... 4-5

 

Assaying a Working NO Standard Against a NIST-traceable NO 
Standard ........................................................................................  4-5

 

Zero Air ........................................................................................ 4-6

 

Dynamic Parameter Specifications for Gas Titrator .......................... 4-6

 

Determining GPT System Flow Conditions ................................. 4-7

 

Pre-Calibration ................................................................................... 4-8

 

Calibration .......................................................................................... 4-9

 

Connect GPT Apparatus to the Analyzer ....................................... 4-10

 

Adjust Instrument Gain ................................................................. 4-10

 

Set Backgrounds to Zero ............................................................. 4-10

 

Calibrate the NO Channel to the NO Calibration Gas ............... 4-12

 

Calibrate the NO

x

 Channel to the NO

x

 Calibration Gas ............. 4-12

 

Preparing NO, NO

x

, and NO

2

 Calibration Curves ..................... 4-13

 

Alternative Calibration Procedure Using NO

2

 Permeation Tube .... 4-15

 

Commercial Precision Dilution Systems...................................... 4-16

 

Permeation Tube System............................................................. 4-16

 

Commercial Permeation Systems ................................................ 4-17

 

Calibration in Dual Range and Auto Range Mode ............................ 4-17

 

Set Background Readings to Zero .................................................. 4-17

 

Calibrate NO Low ......................................................................... 4-18

 

Calibrate NO

x 

Low .........................................................................  4-19

 

Calibrate NO

2 

Low ........................................................................ 4-19

 

Calibrate NO High ........................................................................ 4-20

 

Calibrate NO

x 

High ....................................................................... 4-20

 

Calibrate NO

2 

High ....................................................................... 4-21

 

Zero and Span Check ........................................................................ 4-21

 

Manual Calibration ........................................................................... 4-22

 

Adjust Backgrounds ....................................................................... 4-23

 

Adjust Span Coefficient.................................................................. 4-24

 

Reset Bkg to 0.000 and Span Coef to 1.000 ................................... 4-25

 

Zero/Span Schedule .......................................................................... 4-26

 

Next Time ..................................................................................... 4-26

 

Period ............................................................................................ 4-26

 

Zero/Span/Purge Duration Minutes .............................................. 4-26

 

Schedule Averaging Time ............................................................... 4-27

 

Summary of Contents for 42iQTL

Page 1: ...42iQTL Instruction Manual Trace Level NO NO2 NOx Analyzer 119019 00 1April2020 ...

Page 2: ......

Page 3: ...in Menus and Keypads 3 5 Numeric Keypad 3 6 Alphanumeric Keypad 3 7 Calibration 3 9 Calibrate Backgrounds 3 10 Calibrate NO NOx and Prereactor Background 3 11 Calibrate Span Coefficients 3 14 Calibrate NO NO2 and NOx Span Coefficient 3 16 Zero Span Schedule 3 19 Advanced Calibration 3 21 Manual Calibration 3 22 Calibration History 3 30 Data 3 31 View Data Log Last Hour 3 32 View Data Log Last 24 H...

Page 4: ... 3 98 Ethernet Protocol Selection 3 99 Instrument Settings 3 100 Instrument Setpoints 3 102 Alarm Setpoints 3 103 Display Setup 3 105 Clock 3 106 Time Zone 3 110 Configuration 3 114 Security Access Levels 3 115 Change Security to View Only Access 3 117 Change Full Access Security Password 3 118 Change Instrument Password 3 120 Reset Instrument Password 3 122 USB Drive 3 123 Firmware Update Via USB...

Page 5: ...O Channel to the NO Calibration Gas 4 12 Calibrate the NOx Channel to the NOx Calibration Gas 4 12 Preparing NO NOx and NO2 Calibration Curves 4 13 Alternative Calibration Procedure Using NO2 Permeation Tube 4 15 Commercial Precision Dilution Systems 4 16 Permeation Tube System 4 16 Commercial Permeation Systems 4 17 Calibration in Dual Range and Auto Range Mode 4 17 Set Background Readings to Zer...

Page 6: ...Replacing 7 9 LCD Module Replacement 7 12 I O Replacement 7 14 Peripherals Support Board and System Controller Board Replacement 7 16 DMC Pressure and Flow Board 7 17 Pump Replacement 7 19 Vacuum Pump Diaphragm and Valve Replacement 7 20 Diaphragm Replacement 7 20 Valve Replacement 7 22 Power Supply Replacement 7 24 Step POL Board Replacement 7 26 DMC PMT Cooler and Reaction Chamber Replacement 7 ...

Page 7: ...Electronics 8 3 Power Supply 8 6 Front Panel 8 6 I O and Communication Components 8 6 System Controller Board 8 6 Backplane Board 8 6 Peripherals Support System 8 7 Fan 8 7 Step POL Board 8 7 External Pump 8 7 Mode Solenoid 8 7 Solenoid Valve Panel 8 7 Flow Pressure DMC 8 7 Firmware 8 8 Optional Equipment 9 1 Connecting External Devices 9 1 Communication Board 9 2 RS 232 RS 485 Port 9 2 RS 485 Ext...

Page 8: ... Particulate Filter 9 18 Ozone Particulate Filter 9 18 Safety Warranty and WEEE A 1 Safety A 1 Safety and Equipment Damage Alerts A 1 Warranty A 2 WEEE Compliance A 4 WEEE Symbol A 4 Quick Reference B 1 List of Figures B 1 List of Tables B 3 GNU Lesser General Public License C 1 GNU Lesser General Public License C 1 Standards for Trace Level Analyzers D 1 Appendix A Appendix B Appendix C Appendix ...

Page 9: ... Control DMC module design simplifies serviceability Each DMC module contains its own microprocessor control enabling functional performance validation at the module level Built in predictive diagnostics and preventive maintenance schedules identify problems before they occur The iQ Series platform sends email notifications directly to Thermo Fisher Scientific s world class service support team or...

Page 10: ...ntific experience to simplify daily operations Custom designed ePort software allows remote access to the analyzer with a PC The ePort control mirrors the same GUI look and feel as the instrument touchscreen providing a speedy and familiar operational experience Figure 1 1 42iQTL Front ...

Page 11: ...rects the sample either to the reaction chamber where it mixes with ozone to give an NO reading or to the prereactor where it reacts with ozone prior to the reaction chamber giving a dynamic zero reading for the analyzer The prereactor is sized so that greater the 99 of a 200 ppb NO sample will react prior to entering the reaction chamber yet is small enough to allow other potential interferents t...

Page 12: ...Introduction Principle of Operation 1 4 42iQTL Instruction Manual Thermo Scientific Figure 1 2 42iQTL Flow Schematic Figure 1 3 42iQTL Flow Schematic with Zero Span ...

Page 13: ...ing Temperature Range 0 40 C Power Requirements 100 240 VAC 50 60 Hz 275 Watts Physical Dimensions 24 in D x 16 75 in W x 8 72 in H 609 mm D 425 45 mm W x 221 48 mm H Weight 40 lbs Analog I O 4 Isolated Voltage Inputs 0 10 V 6 Isolated Analog Voltages Outputs with 4 selectable ranges 6 Isolated Analog Current Outputs with 2 selectable ranges Digital I O 16 Digital Inputs TTL 8 Solenoid Driver Outp...

Page 14: ...Introduction Dimensions 1 6 42iQTL Instruction Manual Thermo Scientific Figure 1 4 Bench Mount Assembly dimensions in inches mm Dimensions ...

Page 15: ...Introduction Dimensions Thermo Scientific 42iQTL Instruction Manual 1 7 Figure 1 5 Rack Mount Assembly dimensions in inches mm ...

Page 16: ...Introduction Dimensions 1 8 42iQTL Instruction Manual Thermo Scientific Figure 1 6 Rack Mount Requirements Figure 1 7 Rack Requirements Part 2 ...

Page 17: ...ing container when you receive the instrument notify the carrier immediately and hold for inspection The carrier is responsible for any damage incurred during shipment Use the following procedure to unpack and inspect the instrument 1 Remove the instrument from the shipping container and set it on a table or bench that allows easy access to both the front and rear 2 Remove the cover to expose the ...

Page 18: ...e the cover Equipment required Phillips screwdriver 2 1 Unfasten the four 8 32 screws securing the cover shipping screws 2 Press in both latches located on top cover and hold while pulling up to remove Set upright Figure 2 1 Removing the Cover 3 To replace align cover and drop in Latches will automatically snap in place Cover Removing and Replacing ...

Page 19: ...trument can be installed in the following configurations Bench Mount Rack Mount Positioned on bench includes installing feet See Figure 2 2 Equipment required Slot drive 5 16 inch 1 Fasten feet in position 1 or 2 to fit to the desired depth Figure 2 2 Installing Feet Mounting Options Bench Mount ...

Page 20: ...s Equipment required Phillips drive 2 1 Start by gripping from the top corners of the front panel and pull outwards Figure 2 3 Removing the Front Panel 2 Unfasten the four 8 32 x 3 16 inch pan head screws 3 Slide ears outwards 4 Use the same four 8 32 x 3 16 inch pan head screws to secure it 5 Install the handles with the four 8 32 x 3 16 inch flat head screws Rack Mount ...

Page 21: ...Installation and Setup Mounting Options Thermo Scientific 42iQTL Instruction Manual 2 5 Figure 2 4 Installing Ears and Handles ...

Page 22: ...f 1 4 inch and a minimum ID of 1 8 inch The length of the tubing should be less than 10 feet Note Gas must be delivered to the instrument free of particulates It may be necessary to use the PTFE particulate filter as described in PTFE Particulate Filter on page 9 18 Note Gas must be delivered to the instrument at atmospheric pressure It may be necessary to use an atmospheric bypass plumbing arrang...

Page 23: ...rmanent damage to both the cooler and the photomultiplier tube 4 Plug the pump into an outlet of the appropriate voltage and frequency 5 If the optional zero span solenoid valves are installed connect a source of NOx free air to the ZERO IN bulkhead and connect a source of NO span gas to the SPAN bulkhead 6 Connect a suitable recording device to the rear panel connector For detailed information ab...

Page 24: ...2iQTL Instruction Manual Thermo Scientific The 42iQTL is supplied with a three wire grounding cord Under no circumstances should this grounding system be defeated Figure 2 6 42iQTL Rear Panel Figure 2 7 Atmospheric Dump Bypass Plumbing Icon Here ...

Page 25: ...ayed on the gas mode button in the title bar and the concentration calculation is turned off To disable warm up go to Settings Configuration 3 Set instrument parameters such as operating ranges and averaging times to their appropriate settings For more information about instrument parameters see the Operation chapter 4 Before beginning the actual monitoring perform a multipoint calibration as desc...

Page 26: ......

Page 27: ...er Interface located in the middle is where the Home Screen and all other screens are accessed The Home Screen has three Main Menu buttons located on the left side which include Calibration Data and Settings while the user interface to the right of the buttons displays the chemical names concentration values and units The Status Bar located at the bottom includes the Back button Access Levels Heal...

Page 28: ...Operation Instrument Display 3 2 42iQTL Instruction Manual Thermo Scientific Home Screen dual or auto range mode Title Bar User Interface Status Bar ...

Page 29: ...tatus and alarms also predictive diagnostics and maintenance history Contains controls for operating the instrument communications and sets instrument options Concentration When in single mode displays NO NO2 and NOx concentrations in big bold characters depending on operating mode When in dual or auto mode displays either high range or low range values based on the range setting Status Bar Back b...

Page 30: ...Operation Instrument Display 3 4 42iQTL Instruction Manual Thermo Scientific Thermo Scientific Information button Shows contact information ...

Page 31: ...fficient Adjust NOx Span Coefficient Reset Bkg and Span Coef Calibration History Zero Span Schedule Health Check Status and Alarms Predictive Diagnostics Maintenance File Sharing and Support iQ360 Firmware Version Measurement Settings Averaging Time Range Mode Selection Range Settings Gas Mode Gas Units Dilution Ratio Advanced Measurement Reaction Chamber Settings Auto Manual Mode Compensation Pre...

Page 32: ...uch as for flow rates temperatures or pressures the keypad screen will automatically display Initially the box above the keypad will display the current value Enter a new value using the keypad and then select the Enter button to set the new value or press the Cancel button to exit the keypad screen and return to the previous screen without saving the value Numeric Keypad ...

Page 33: ...utomatically display Initially the box above the keypad will display the current value Enter a new value using the keypad and then select the Enter button to set the new value or press the Cancel button to exit the keypad screen and return to the previous screen without saving the value The alphanumeric keypad is only available when the user needs to enter alphabet characters Alphanumeric Keypad ...

Page 34: ...Operation Instrument Display 3 8 42iQTL Instruction Manual Thermo Scientific ...

Page 35: ...bration Home Screen Calibration The Calibration screen contains the following information Calibrate Backgrounds Sets the NO NOx and prereactor reading to zero Calibrate Span Coefficients Sets the NO NO2 and NOx span coefficients Zero Span Schedule Programs the instrument to perform fully automated zero and span checks or adjustments Advanced Calibration Calibrates the instrument using manual zero ...

Page 36: ...ground of NO NOx and Prereactor Home Screen Calibration Calibrate Backgrounds The Calibrate Backgrounds screen contains the following information Calibrate NO Background Sets the NO background to zero Calibrate NOx Background Sets the NOx background to zero Calibrate Prereactor Background Sets the Prereactor background to zero Calibrate Backgrounds ...

Page 37: ...air for at least 5 minutes It is important to note the averaging time when calibrating The longer the averaging time the more precise the calibration results To achieve maximum precision allow the instrument to stabilize each time input gas is changed and set the averaging time to 300 second averaging Home Screen Calibration Calibrate NO Background Home Screen Calibration Calibrate NOx Background ...

Page 38: ...en pressed updates the background value making the concentration go to 0 0 Target NOx Concentration Read only Displays what the NOx concentration value will become when the calibrate button is pressed Current NOx Concentration Read only Displays what the current NOx concentration is Current NOx Background Read only Displays what the current user set NOx background is Calculated NOx Background Read...

Page 39: ...nd Read only Displays what the current user set prereactor background is Calculated Prereactor Background Read only Displays what the user set prereactorbackground will become when the calibrate button is pressed Calibrate When pressed updates the background value making the concentration go to zero ...

Page 40: ...ange be sure to use a low span gas to calibrate the low range and a high span gas to calibrate the high range For more information about range modes see Range Mode Selection on page 3 77 It is important to note the averaging time when calibrating The longer the averaging time the more precise the calibration results To achieve maximum precision allow the instrument to stabilize each time input gas...

Page 41: ...range mode Calibrate NO2 Span Coefficient Sets the NO2 span coefficient when in single range mode Calibrate High Range NO2 Span Coefficient Sets the high range NO2 span coefficient when in dual or auto range mode Calibrate Low Range NO2 Span Coefficient Sets the low range NO2 span coefficient when in dual or auto range mode Calibrate NOx Span Coefficient Sets the NOx span coefficient when in singl...

Page 42: ...creens are shown in single range mode and dual or auto range mode In dual or auto range modes High or Low is displayed to indicate the calibration of the high or low coefficient The Calibrate High Span Coefficient and Calibrate Low Span Coefficient screens function the same way It is important to note the averaging time when calibrating The longer the averaging time the more precise the calibratio...

Page 43: ...ual or auto range mode Current Low Range NO Concentration Read only Current low range NO concentration reading when in dual or auto range mode Current NO Span Coefficient Read only Displays the current user set NO span coefficient when in single range mode Current High Range NO Coefficient Read only Displays the current user set high range NO span coefficient when in dual or auto range mode Curren...

Page 44: ...c Calculated Low Range NO Span Coefficient Read only After the Edit Span Concentration value is entered the new calculated low range NO span coefficient is displayed Calibrate When pressed updates the coefficient and the concentration should match the span concentration ...

Page 45: ...an schedule Enabled or Disabled Next Time Allows the user to view and set the initial date and time 24 hour format of the zero span schedule Period Defines the period or interval between zero span checks or calibrations If period 0 the schedule runs continuously Zero Duration Sets how long zero air is sampled by the instrument Span Duration Sets how long span gas is sampled by the instrument Purge...

Page 46: ...nd value is not updated Span Calibration Toggles Enabled Disabled If enabled span coefficient is calibrated If disabled schedule runs a calibration check only and span coefficient is not updated Zero Span Ratio Allows the user to perform more scheduled background calibration checks to span calibration checks Default is 1 and therefore reads 1 1 This means that each time the schedule is run both th...

Page 47: ...bration history See Chapter 4 Calibration for further instructions on how to run a calibration Home Screen Calibration Advanced Calibration The Advanced screen contains the following information Manual Calibration The user manually adjusts the background or span coefficient Calibration History Lists all calibrations performed and calibration checks Advanced Calibration ...

Page 48: ... on how to run a Manual Calibration Home Screen Calibration Advanced Calibration Manual Calibration The Manual Calibration screen contains the following information Adjust Backgrounds Allows the user to manually adjust the zero backgrounds Adjust Span Coefficients Allows the user to manually adjust the span coefficients Reset Bkgs to 0 000 and Span Coef to 1 000 Resets all backgrounds and coeffici...

Page 49: ...d Home Screen Calibration Advanced Calibration Manual Calibration Adjust Backgrounds The Adjust Backgrounds screen contains the following information Adjust NO Background User manually adjusts zero NO background Adjust NOx Background User manually adjusts zero NOx background Adjust Prereactor Background User manually adjusts zero Prereactor background Adjust Backgrounds ...

Page 50: ...eraging time when calibrating The longer the averaging time the more precise the calibration results To achieve maximum precision allow the instrument to stabilize each time input gas is changed and set the averaging time to 300 second averaging Home Screen Calibration Advanced Calibration Manual Calibration Adjust Backgrounds Adjust NO Background Home Screen Calibration Advanced Calibration Manua...

Page 51: ...tration Read only Displays the current NO concentration Adjust NOx Background User manually adjusts zero NOx background Adjusted NOx Concentration Read only Displays what the NOx concentration value will become when the calibrate button is pressed Current NOx Concentration Read only Displays the current NOx concentration Adjust Prereactor Background User manually adjusts zero Prereactor background...

Page 52: ...and Adjust Low Span Coefficient screens function the same way as the single range Adjust Span Coefficient screen Home Screen Calibration Advanced Calibration Manual Calibration Adjust Span Coefficients single range mode Home Screen Calibration Advanced Calibration Manual Calibration Adjust Span Coefficients dual range mode The Adjust Span Coefficients screen contains the following information Cali...

Page 53: ...Coefficient Adjusts the NO2 high range coefficient when in dual or auto range mode Calibrate NO2 Low Range Coefficient Adjusts the NO2 low range coefficient when in dual or auto range mode Calibrate NOx Coefficient Adjusts the NOx coefficient when in single range mode Calibrate NOx High Range Coefficient Adjusts the NOx high range coefficient when in dual or auto range mode Calibrate NOx Low Range...

Page 54: ...to range mode In dual or auto range modes High Range or Low Range is displayed to indicate the calibration of the high or low coefficient The Adjust High Range NO Span Coefficient and Adjust Low Range NO Span Coefficient screens function the same way It is important to note the averaging time when calibrating The longer the averaging time the more precise the calibration results To achieve maximum...

Page 55: ...manually adjusts the high range NO span coefficient when in dual or auto range mode Adjusted High Range NO Concentration Read only Shows adjusted high range NO concentration based on adjusted high range NO span coefficient when in dual or auto range mode Current High Range NO Concentration Read only Shows current high range NO concentration when in dual or auto range mode Adjust Low Range NO Span ...

Page 56: ... Calibration History Note Pressing the Calibration History button responds with Retrieving calibration log data it may take a few seconds The Calibration History screen contains the following information Time Stamp Time of calibration or calibration check Event Lists the type of calibration event Result Concentration result Target Concentration setpoint value Units Displays units for each item Ave...

Page 57: ...following information View Data Log Last Hour User views last hour of historical data Table shows most recent data on top View Data Log Last 24 Hours User views 24 hour of historical data Table shows most recent data on top View Data Log User Defined Time User selects the start and end time for viewing the data Table shows most recent data on top Advanced Data Setup Allows the user to set up the p...

Page 58: ... up and down and the and buttons to move left and right Home Screen Data View Data Log Last Hour Note Pressing the View Data Log Last Hour responds with Retrieving user log data it may take a few seconds The View Data Log Last Hour screen contains the following options Graph Displays data graph for the column selected The graph time axis is defined by the data set in the table View Data Log Last H...

Page 59: ...and down and the and buttons to move left and right Home Screen Data View Data Log Last 24 Hours Note Pressing the View Data Log Last 24 Hours responds with Retrieving user log data it may take a few seconds The View Data Log Last 24 Hours screen contains the following options Graph Displays data graph for the column selected The graph time axis is defined by the data set in the table View Data Lo...

Page 60: ...d Time Home Screen Data View Data Log User Defined Time Save Data Logging Start Time The View Data Log User Defined Time screen contains the following information Date Sets date of data logging start time Time Sets time of data logging start time Save Data Logging Start Time Pressing this button saves the start time and follows directly to the end time selection for the data logging screen View Da...

Page 61: ...mation Date Sets date of data logging end time Time Sets time of data logging end time Save Data Logging End Time Pressing the Save Data Logging End Time button saves the end time and follows directly to the data logging table Note End time should not be greater than 1 year from start time Note The datalogging table is limited to 10 000 points ...

Page 62: ...up parameters for data logging and streaming data Home Screen Data Advanced Data Setup The Advanced Data Setup screen contains the following information Data Logging Setup User selects the parameters for collecting logged data Streaming Data Setup User selects the parameters for streaming data to a computer in real time Advanced Data Setup ...

Page 63: ...variables to log Period User selects how often data is collected by setting the duration between logged data Data Treatment Toggles between Average Current Minimum and Maximum When set to average the average value during the period will be recorded When set to current the latest data will be recorded When set to minimum or maximum the minimum or maximum value during the period will be recorded Era...

Page 64: ...h other but contain the same variable selections The list is based on the instrument s configuration Use the and buttons to scroll through the variables Select the variables to log by pressing the corresponding cells Next press the Commit Changes button to save selections Yellow buttons indicate that the variable is selected Home Screen Data Advanced Data Logging Setup Select Data Logging Variable...

Page 65: ...etup The Streaming Data Setup screen contains the following information Select Streaming Variables User selects which variables to stream Period Sets the time between streamed data Show Labels Toggles on off When on shows variable labels to the left of the variable values Show Timestamp Toggles on off When on shows timestamp at the beginning of each row of data Streaming Data Setup ...

Page 66: ...h other but contain the same variable selections The list is based on the instrument s configuration Use the and buttons to scroll through the variables Select the variables to log by pressing the corresponding cells Next press the Commit Changes button to save selections Yellow buttons indicate that the variable is selected Home Screen Data Advanced Streaming Data Setup Select Streaming Variables...

Page 67: ...tact Thermo Fisher Scientific technical support Measurement Settings Allows the user to setup user preferences as related to the concentration readings Communications Allows the user to communicate with outside devices Instrument Setting Allows the user to setup alarm setpoints and user preferences Configuration User selects which options to enable Security Access Levels User selects security prot...

Page 68: ...ns the following information Status and Alarms Allows the user to view the status and alarm menus Menus are broken down according to modules where the user can view instrument readings setpoints and alarms Predictive Diagnostics Smart module diagnostics which shows possible future issues Maintenance History Allows the user to set up a maintenance schedule and track maintenance history File Sharing...

Page 69: ... active alarm in the module Home Screen Settings Health Check Status and Alarms Home Screen Settings Health Check Status and Alarms More The Status and Alarms screen contains the following information Concentration Displays NO NO2 NOx concentrations and alarms Reaction Chamber Displays reaction chamber alarms and faults Ozonator Displays ozonator alarms and faults NO2 Converter Displays NO2 conver...

Page 70: ...mo Scientific Valve and Pump Resets User can reset valve and pump power Analog I O Displays analog input output alarms and faults Digital I O Displays digital input output alarms and faults Serial Numbers Displays all the serial numbers for the instrument ...

Page 71: ... Screen Settings Health Check Status and Alarms Concentration The Concentration screen contains the following information Across Concentration This column lists items associated with the NO NO2 NOx concentrations Value Displays the current value for each item Low Alarm Displays low alarm for each item High Alarm Displays high alarm for each item Span Conc Span concentration used in the span calibr...

Page 72: ...n the last attempted background calibration High alarm shows user defined limit for acceptable background check offset NO Span Check Offset Displays NO concentration based on the last attempted span calibration High alarm shows user defined limit for acceptable span check offset compared to the span concentration value Span concentration shows span setpoint NOx Span Check Offset Displays NOx conce...

Page 73: ...rmation Across Chamber This column lists items associated with the reaction chamber Value Displays the current value for each item Low Alarm Displays low alarm status for each item High Alarm Displays high alarm status for each item Units Displays units for each item Down Instrument Temperature Displays the current instrument temperature reading Flow Displays the current sample flow reading Chambe...

Page 74: ...ler voltage too low Cooler Voltage too High Displays OK Fail for cooler voltage too high PMT Voltage Displays the current PMT voltage reading PMT Voltage too Low Displays OK Fail for PMT voltage too low PMT Voltage too High Displays OK Fail for PMT voltage too high Frequency Displays the current frequency reading Frequency too Low Displays OK Fail for frequency too low Frequency too High Displays ...

Page 75: ...Manual 3 49 12 V Diagnostic Displays current voltage readings Alarm limits are not changeable 12 V Diagnostic Displays current voltage readings Alarm limits are not changeable 24 V Diagnostic Displays current voltage readings Alarm limits are not changeable ...

Page 76: ...ists items associated with the ozonator Value Displays the current value for each item Low Alarm Displays low alarm status for each item High Alarm Displays high alarm status for each item Units Displays units for each item Down Ozonator Power Displays the current ozonator power on or off Ozonator Level Displays the current ozonator level Ozonator Flow Displays OK Fail for ozonator flow Ozonator C...

Page 77: ...rent voltage readings Alarm limits are not changeable 5 V Diagnostic Displays current voltage readings Alarm limits are not changeable 15 V Diagnostic Displays current voltage readings Alarm limits are not changeable 24 V Diagnostic Displays current voltage readings Alarm limits are not changeable ...

Page 78: ... the following information Across Converter This column lists items associated with the NO2 converter Value Displays the current value for each item Low Alarm Displays low alarm status for each item High Alarm Displays high alarm status for each item Units Displays units for each item Down NO2 Converter Temperature Displays the current NO2 converter temperature reading User can adjust low and high...

Page 79: ... limits No voltage rows ever get highlighted 2 5 V Diagnostic Displays current voltage readings Alarm limits are not changeable 3 V Diagnostic Displays current voltage readings Alarm limits are not changeable 3 3 V Diagnostic Displays current voltage readings Alarm limits are not changeable 5 V Diagnostic Displays current voltage readings Alarm limits are not changeable ...

Page 80: ...Across Flow and Pressure This column lists items associated with the flow and pressure module Value Displays the current value for each item Low Alarm Displays low alarm status for each item High Alarm Displays high alarm status for each item Units Displays units for each item Down Flow Displays the current flow reading User can adjust low and high alarm limits Chamber Pressure Displays the curren...

Page 81: ...d if any voltages are outside their limits No voltage rows ever get highlighted 2 5V Diagnostic Displays current voltage readings Alarm limits are not changeable 3 3V Diagnostic Displays current voltage readings Alarm limits are not changeable 5 0V Diagnostic Displays current voltage readings Alarm limits are not changeable 24V Diagnostic Displays current voltage readings Alarm limits are not chan...

Page 82: ...ns the following information Across PSB This column lists items associated with the peripherals support Value Displays the current value for each item Low Alarm Displays low alarm status for each item High Alarm Displays high alarm status for each item Units Displays units for each item Down Module Temperature Displays the current temperature of the module Sample Valve Displays whether or not the ...

Page 83: ...isplays OK Fail of power supplies Power supply goes red if any voltages are outside their limits No voltage rows ever get highlighted 2 5V Diagnostic Displays current voltage readings Alarm limits are not changeable 3 3V Diagnostic Displays current voltage readings Alarm limits are not changeable 5 0V Diagnostic Displays current voltage readings Alarm limits are not changeable 24V Diagnostic Displ...

Page 84: ...e Resetting one valve will reset all valves Home Screen Settings Health Check Status and Alarms Valve and Pump Resets The Valve and Pump Resets screen contains the following information Sample Valve Reset Resets sample valve Zero Valve Reset Resets zero valve Span Valve Reset Resets span valve NO NOx Valve Reset Resets NO NOx valve Converter Valve Reset Resets converter valve Prereactor Valve Rese...

Page 85: ... contains the following information Across Analog IO This column lists items associated with the analog I O Value Displays the current value for each item Low Alarm Displays low alarm status for each item High Alarm Displays high alarm status for each item Units Displays units for each item Down Voltage Output Channel 1 6 Displays real time voltage output for each channel Current Output Channel 1 ...

Page 86: ...No voltage rows ever get highlighted 3 3V Diagnostic Displays current voltage readings Alarm limits are not changeable 5 0V Diagnostic Displays current voltage readings Alarm limits are not changeable 5 0V Ref Diagnostic Displays current voltage readings Alarm limits are not changeable 15V Diagnostic Displays current voltage readings Alarm limits are not changeable 15V Diagnostic Displays current ...

Page 87: ...s the following information Across Digital IO This column lists items associated with the digital I O Value Displays the current value for each item Reset Resets item Low Alarm Displays low alarm status for each item High Alarm Displays high alarm status for each item Units Displays units for each item Down Solenoid 1 8 Displays whether or not the solenoid is activated by showing the current in mA...

Page 88: ...goes red if any voltages are outside their limits No voltage rows ever get highlighted 3 3V Diagnostic Displays current voltage readings Alarm limits are not changeable 5 0V Diagnostic Displays current voltage readings Alarm limits are not changeable 24V Diagnostic Displays current voltage readings Alarm limits are not changeable ...

Page 89: ...The Serial Numbers screen contains the following information Instrument Instrument serial number Reaction Chamber Reaction chamber serial number Ozonator Ozonator serial number NO2 Converter NO2 converter serial number Flow and Pressure Flow and pressure serial number Peripherals Support Peripherals support serial number Analog I O Analog I O serial number Digital I O Digital I O serial number Ser...

Page 90: ...is greyed out no maintenance is needed If button is blue maintenance is suggested Note This symbol denotes there is an active maintenance related warning in the module Home Screen Settings Health Check Predictive Diagnostics The Predictive Diagnostics screen contains the following information Reaction Chamber NO2 Converter Sample Pump Capillary Flow Path Case Fan Sample Valve Zero Valve Span Valve...

Page 91: ...s Health Check Maintenance Home Screen Settings Health Check Maintenance Advanced Maintenance The Maintenance screen contains the following information Preventive Maintenance Shows suggested service interval and time left for component replacement Change Part User logs component fix Maintenance History Shows the log of all recorded component fixes Service Tips Provides video and procedural service...

Page 92: ...intenance The Preventive Maintenance screen contains the following information Across Component Device to be routinely serviced or replaced Interval in Months Expected period of time before a component needs to be checked and or serviced Months Left Count down timer in months Remaining time since the beginning of the service interval When the value is 1 or less the row will be highlighted and it i...

Page 93: ...3 scrubber Sample Permeation Dryer Service interval for sample permeation dryer Ozone Permeation Dryer Service interval for ozone permeation dryer Flow System Service interval for the flow system components Pump Service interval for pump Capillary Sample Service interval for capillaries Capillary Ozone Service interval for capillaries DC Power Supply Service interval for DC power supply Fan Filter...

Page 94: ...ve diagnostics screen when applicable Home Screen Settings Health Check Maintenance Change Part The Change Part screen contains the following information Select Part User selects part to service from the selection table Fix User chooses from new rebuilt cleaned and unknown Comment User can write a brief comment which will be saved to the preventive maintenance history table Commit User commits and...

Page 95: ...the and buttons to move up and down and the and buttons to move left and right Home Screen Settings Health Check Maintenance Maintenance History Note Retrieving maintenance history data it may take a few seconds The Maintenance History screen contains the following information Part Component that has been fixed Fix The type of maintenance Date Shows date time when service was logged Service Months...

Page 96: ...rive Email Health Check Report File to Technical Support Sends the health report file to technical support and the customer email addresses via email Email Health Check Report to Personal Account Sends the health report file to a personal account via email iQ Alert Assistant With the iQ Alert Assistant enabled the instrument will email Thermo Scientific Technical Support the health check report af...

Page 97: ...ings Health Check iQ360 Get Started Home Screen Settings Health Check iQ360 Status and Renewal Request The iQ360 screen contains the following information Get Started Allows the user to access the menu where the subscription passcode is entered Status and Renewal Request Allows the user to access the iQ360 menu once the subscription has been enabled Cancel and Return to the Home Screen Exits scree...

Page 98: ...eck iQ360 Get Started The Get Started screen contains the following information Resend Subscription E mail Allows the user to request another subscription passcode if the email was never received Enter Subscription Access Code Allows the user to enter the subscription passcode to enable an iQ360 subscription Exit and Return to the Home Screen Exits screen and returns to the Home Screen Get Started...

Page 99: ...and Renewal Request The Status and Renewal Request screen contains the following information iQ360 Status Informs the user if the subscription is enabled iQ360 Subscription Expiration Date Informs the user when the subscription will expire iQ360 Test Connection Allows the user to verify the network connection is working iQ360 Subscription Renewal Allows the user to request a subscription renewal v...

Page 100: ...NOx sample measurements Range Mode Selection User can choose between the various range modes single dual or auto For more information see Range Mode Selection on page 3 77 Range Settings Defines the NO NO2 and NOx concentration range for the analog outputs Gas Mode User can manually choose sample zero or span mode Gas Units Defines how the NO NO2 and NOx concentration readings are expressed Diluti...

Page 101: ...ds for example means that the average concentration of the last 10 seconds will be displayed every 10 seconds An averaging time of 300 seconds means that the moving average concentration of the last 300 seconds will be the output at each update Therefore the lower the averaging time the faster the front panel display and analog outputs respond to concentration changes Longer averaging times are ty...

Page 102: ...e High Range Dynamic Filtering Enables disables high range dynamic filtering when in dual or auto range mode Low Range Dynamic Filtering Enables disables low range dynamic filtering when in dual or auto range mode Averaging Time Sets averaging time period when in single range mode and when dynamic filtering is disabled High Range Averaging Time Sets high averaging time when in dual or auto range m...

Page 103: ...can be set to output concentrations from 0 to 50 ppb and the high NO analog output set to output concentrations from 0 to 100 ppb In addition to each channel having two ranges each channel has two span coefficients There are two span coefficients so that each range can be calibrated separately This is especially necessary if the two ranges are not close to one another For example the low NO range ...

Page 104: ...igh range is active the NO concentration must drop to 85 of the low NO range for the low range to become active In addition to each channel having two ranges each channel has two span coefficients There are two span coefficients so that each range can be calibrated separately This is especially necessary if the two ranges are not close to one another For example the low NO range is set to 0 50 ppb...

Page 105: ... the words High or Low displayed to indicate which range is displayed For more information about the dual and auto range modes see Range Mode Selection on page 3 77 Pressing Range Setting High Range Setting or Low Range Setting brings up a numeric keypad whereby the user can select a range Home Screen Settings Measurement Settings Range Settings single range mode Home Screen Settings Measurement S...

Page 106: ...or the analog output when in dual or auto range mode Low Range NO2 Setting Sets the low range NO2 concentration range for the analog output when in dual or auto range mode NOx Range Setting Sets the NOx concentration range for the analog outputs when in single range mode High Range NOx Setting Sets the high range NOx concentration range for the analog output when in dual or auto range mode Low Ran...

Page 107: ...ettings Measurement Settings Gas Mode The Gas Mode screen contains the following information Sample Sets the instrument to measure sample gas Zero Used when calibrating the background of the instrument When pressed sets the instrument to zero mode Span Used when calibrating the span coefficient When pressed sets the instrument to span mode Gas Mode ...

Page 108: ...using a standard pressure of 760 mmHg and a standard temperature of 0 C The temperature can be changed in the compensation screen Use the and buttons to select Home Screen Settings Measurement Settings Gas Units The Gas Units screen contains the following information ppb parts per billion ppm parts per million percent μg m3 micrograms per meter cubed mg m3 milligrams per meter cubed g m3 grams per...

Page 109: ...t Settings Advanced Measurement Settings The Advanced Measurements Settings screen contains the following information Reaction Chamber Settings User can calibrate Input board and PMT Auto Manual Mode User can choose to measure single gas or switching mode Compensation Allows the user to compensate for changes in temperature and pressure concentration Pressure Calibration Calibrates pressure Advanc...

Page 110: ...n Chamber Settings Home Screen Settings Measurement Settings Advanced Measurement Settings Reaction Chamber Settings Continue to Input Board Calibration Screen The Input Board Calibration screen contains the following information Across Description Defines the actions the user can do Input Board Cal User can manually adjust the input board value start stop automatic calibration read voltage freque...

Page 111: ...Freq Displays zero offsets frequency Default Values When pressed the default values are saved Home Screen Settings Measurement Settings Advanced Measurement Settings Reaction Chamber Settings Continue to PMT Calibration Screen The PMT Calibration screen contains the following information Across Description Defines the actions the user can do PMT Supply User can manually adjust the PMT supply value...

Page 112: ...r target concentration Calibration Concentration Displays calibration concentration Auto Calibration When pressed the auto calibration process is initiated Please allow up to 5 minutes for calibration to complete PMT voltage is automatically adjusted until calibration concentration is with 1 of target concentration End Calibration When pressed the auto calibration is interrupted and the value does...

Page 113: ...reen is used to display single gases or multiple gases switching mode Use the and buttons to select Home Screen Settings Measurement Settings Advanced Measurement Settings Auto Manual Mode The Auto Manual Mode screen contains the following information NO NOx NO NOx Prereactor Auto Manual Mode ...

Page 114: ...perature variations The effects of internal instrument temperature changes on the analyzer s subsystems and output have been empirically determined This empirical data is used to compensate for any changes in temperature Pressure Compensation Toggles pressure compensation enabled or disabled and provides compensation for any changes to the instrument s output signal due to bench pressure variation...

Page 115: ...nsor Calibration Starts calibration or resets default values Down Sensor 1 3 Reading Under the column labeled Reading current reading of each pressure sensor Atmospheric Sensor 1 3 Under the column labeled reading the user enters the current atmospheric pressure in mmHg units Under the column labelled Calibration the user presses the Start button to calibrate the high point of the sensor Zero Sens...

Page 116: ...ation Communications Board Analog I O Settings for communicating with the instrument through analog I O settings This is only visible if selected in Settings Configuration Analog I O Digital I O Settings for communicating with the instrument through digital I O settings This is only visible if selected in Settings Configuration Digital I O Email Server SMTP Settings for communication with email In...

Page 117: ...at the instrument should respond with in response to a valid data query DA command Note Refer to the Bayern Hessen Protocol section in the Communications Manual for a detailed description Ethernet Protocol Selection Allows the user to enable Streaming Modbus or Bayern Hessen to utilize the mobile app and or those communication protocols ...

Page 118: ... Screen Settings Communications Wired TCP DHCP with DHCP enabled Home Screen Settings Communications Wired TCP DHCP with DHCP disabled The Wired TCP DHCP screen contains the following information DHCP Toggles DHCP Enabled Disabled Dynamic IP Address Dynamic IP address of the instrument Dynamic Netmask Dynamic Netmask of instrument Dynamic Gateway Dynamic Gateway of instrument Static IP Address Sta...

Page 119: ... of instrument This is settable when DHCP is disabled Static Gateway Static Gateway of instrument This is settable when DHCP is disabled DNS Server Address DNS IP address of instrument This is settable when DHCP is disabled Wired MAC Address Instrument MAC address Host Name Host name of instrument ...

Page 120: ...me Screen Settings Communications Serial RS 232 485 The Serial RS 232 485 screen contains the following information Protocol User selects Streaming Modbus or Bayern Hessen Baud Rate User selectable baud rates from 1200 to 115200 Bits User selectable between 7 and 8 Parity User selectable between None Even and Odd Stop Bits User selectable between 1 and 2 RS 232 485 User selectable between RS 232 a...

Page 121: ...n Analog In Allows the user to view and calibrate voltage inputs from external devices Analog Out Voltage Allows the user to view voltage outputs Analog Out Current Allows the user to view current mA outputs Analog Out Under Over Range Enabled Disabled Allows the user to select whether or not the analog outputs are allowed to exceed the selected output range Analog Out Calibration Allows the user ...

Page 122: ... Digital I O Home Screen Settings Communications Digital I O The Digital I O screen contains the following information Digital In Allows the user to view digital inputs from external devices Digital Out Relays Allows the user to view relay outputs Digital Out Solenoids Allows the user to view solenoid outputs Advanced Digital I O Allows user to test the digital out relays and solenoids Digital I O...

Page 123: ...Server SMTP The Email Server SMTP screen contains the following information SMTP Server Address Address of the user s email server From Email Address The email address that goes in the From field in emails SMTP Server Port Server port of user s email server Email Password Password for SMTP server Email UserName User name that is authorized to send email through SMTP server Email Server SMTP ...

Page 124: ...ttings The Bayern Hessen Settings screen contains the following information Across Number Lists up to 8 registers that can selected by the user Register User selects the measured values to be logged Meter Number Allows the user to choose the meter register number 001 to 999 that will preface the measured value in the response to the DA command Down 1 8 Displays the register number and the measured...

Page 125: ...tilize the mobile app and or those communication protocols Press Commit changes button to save selections Yellow buttons indicate that the selection is enabled More than one can be chosen Home Screen Settings Communications Ethernet Protocol Selection The Ethernet Protocol Selection screen contains the following information Streaming Modbus Bayern Hessen Ethernet Protocol Selection ...

Page 126: ...rmation Titlebar Setup User chooses what concentration reading to display on the titlebar Instrument Setpoints View and set all available setpoints Alarm Setpoints View and set all available alarm minimum and maximum values Ozonator Safety Enabled Disabled Enables disables ozonator safety PMT Supply Enabled Disabled Enables disables PMT supply Ozonator Supply Enabled Disabled Enables disables ozon...

Page 127: ...Operation Settings Thermo Scientific 42iQTL Instruction Manual 3 101 Language Sets language Reboot Instrument Reboots the instrument ...

Page 128: ...to move up and down and the and buttons to move left and right Home Screen Settings Instrument Settings Instrument Setpoints The Alarm Setpoints screen contains the following information Across Variable Lists the items that have settable alarm limits Setpoint User sets high alarm for item Units Units for each item not settable Down NO2 Converter Temperature NO2 converter temperature Instrument Set...

Page 129: ...so be set by pressing on the corresponding buttons located in the Settings Health Check Status and Alarms screen See Status and Alarms on page 3 43 Home Screen Settings Instrument Settings Alarm Setpoints The Alarm Setpoints screen contains the following information Across Variable Lists the items that have settable alarm limits Low Alarm User sets low alarm for item High Alarm User sets high alar...

Page 130: ...d reading offset for calibration and calibration checks This is set with the high alarm only NO Span Check Offset User can set the maximum allowable span reading offset for calibration and calibration checks This is set with the high alarm only NOx Span Check Offset User can set the maximum allowable span reading offset for calibration and calibration checks This is set with the high alarm only In...

Page 131: ...er save option Home Screen Settings Instrument Settings Display Setup The Display Setup screen contains the following information Power Save Minutes before screen times out Toggles enable disable Power Save Setting Option whereby the user can display a black screen after a set amount of inactivity Brightness Sets the brightness of the display Display Setup ...

Page 132: ...ime zone and time server Home Screen Settings Instrument Settings Clock The Clock screen contains the following information Date User sets date Date Format User selects date format Time User sets time Time Zone User chooses time zone Time Server User can enable disable the time server to get periodic clock updates Commit When pressed clock settings are saved Clock ...

Page 133: ...Thermo Scientific 42iQTL Instruction Manual 3 107 The Date screen allows the user to choose date Use the and buttons to move left and right to select month and year Home Screen Settings Instrument Settings Clock Date Date ...

Page 134: ... the user to choose from the following formats mm dd yyyy or dd mm yyyy Use the and buttons to select Home Screen Settings Instrument Settings Clock Date Format The Date Format screen contains the following information U S Format mm dd yyyy European Format dd mm yyyy ISO 8601 yyyy mm dd Date Format ...

Page 135: ...al 3 109 The Time screen allows the user to choose from the following formats mm dd yyyy or dd mm yyyy Use the and buttons to select Home Screen Settings Instrument Settings Clock Time The Time screen contains the following information Hours Minutes Seconds Time ...

Page 136: ...ent Settings Clock Time Zone The Time Zone screen contains the following information Date Line West UTC 12 Samoa Time Zone UTC 11 Aleutian Time Zone UTC 10 Alaskan Time Zone UTC 9 Pacific Time Zone UTC 8 Pacific Daylight Savings UTC 7 Mountain Time Zone UTC 7 Mountain Daylight Savings UTC 6 Central Time Zone UTC 6 Central Daylight Savings UTC 5 Eastern Time Zone UTC 5 Eastern Daylight Savings UTC ...

Page 137: ...al European Time UTC 1 Eastern European Time UTC 2 Further Eastern European Time UTC 3 Gulf Standard Time UTC 4 Yekaterinburg Time UTC 5 Omsk Time UTC 6 Indochina Time UTC 7 ASEAN Common Time UTC 8 Japan Standard Time UTC 9 Chamorro Time Zone UTC 10 Sredmnekolymsk Time UTC 11 New Zealand Standard Time UTC 12 ...

Page 138: ...riodic clock updates Home Screen Settings Instrument Settings Clock Time Server The Time Server screen contains the following information Time Server Enables Disables periodic clock updates from an NTP Network Time Protocol source Set Time Server User can choose specific time server Set Default When pressed default time server will be used Time Server ...

Page 139: ...QTL Instruction Manual 3 113 The Language screen allows the user to choose from the following languages Home Screen Settings Instrument Settings Language The Language screen contains the following information English Chinese Spanish Language ...

Page 140: ...tings Configuration The Configuration screen contains the following information Converter Molybdenum Select if molybdenum converter is used Zero Span Assembly Enables zero span valves Sample Perm Dryer Removes moisture from sample NH3 Scrubber Removes NH3 from sample Communications Board Enables RS 232 or RS 485 communication board option Predictive Diagnostics Enables predictive diagnostics Analo...

Page 141: ...Only Access The Security Access Levels screen contains the following information Current Security Access Full Access Read only User will be able to change all values Password is needed for full access Current Security Access View Only Read only User won t be able to change any values Password is not needed for view only Change Security Access to View Only User can switch to view only mode Password...

Page 142: ...Thermo Scientific Change Full Access Security Password Full access password can have a blank value or user selected password Change Instrument Password User can change instrument password Reset Instrument Password User can reset the instrument password ...

Page 143: ...o View Only Access The Change Security to View Only Access screen contains the following information Set Access Level to View Only Programs the instrument to be in the view only access level where the user won t be able to change any values Cancel Exit screen Note To change security access from view only access to full access a keypad will be displayed where the user can enter full access password...

Page 144: ...ecurity Password screen allows the user to set a new password for allowing full access Home Screen Settings Security Access Levels Change Full Access Security Password Home Screen Settings Security Access Levels Change Full Access Security Password Continue Change Full Access Security Password ...

Page 145: ...ent security password Continue Proceeds to next screen Enter New Security Access Password User enters new security password Confirm New Security Access Password User confirms new security password for spelling confirmation Commit New Security Access Password Change Commits new security password Cancel and Return to the Home Screen Exits screen and returns to the Home Screen without changing passwo...

Page 146: ...ic The Change Instrument Password screen allows the user to change the instrument password Home Screen Settings Security Access Levels Change Instrument Password Home Screen Settings Security Access Levels Change Instrument Password Continue Change Instrument Password ...

Page 147: ...nt instrument password Continue Proceeds to next screen Enter New Instrument Password User enters new instrument password Confirm New Instrument Password User confirms new instrument password for spelling confirmation Commit New Instrument Password Change Commits new instrument password Cancel and Return to the Home Screen Exits screen and returns to the Home Screen without changing password ...

Page 148: ... instrument serial number is 123456789 and the instrument firmware version is 1 6 8 ABCDE where the last five digits are the build number then the default instrument password number will be 1A2B3C4D5E6789 Home Screen Settings Security Access Levels Reset Instrument Password The Reset Instrument Password screen contains the following information Reset Allows the user to reset the instrument passwor...

Page 149: ...B drive is inserted into the USB port When a USB drive is inserted the user is prompted to enter the password if a password has been set Home Screen Settings USB Drive The USB Drive screen contains the following information Firmware Update Via USB Drive If USB is mounted user can update instrument firmware Download Data To USB Drive User can download upload information Change USB Password User can...

Page 150: ...e from the USB drive Home Screen Settings USB Drive Firmware Update Via USB Drive The Firmware Update Via USB Drive screen contains the following information Update Firmware User chooses firmware file from USB and updates instrument firmware Instrument reboots when update is finished Exit User exits without updating firmware Firmware Update Via USB Drive ...

Page 151: ... won t be recognized Also make sure the USB stick is formatted using the FAT or FAT32 file system 2 Plug a USB flash drive into the data port on the front panel of the unit or into one of the USB ports on the side near the power cable A pop up box will appear acknowledging that a flash drive has been detected If a USB password has been previously set you will be prompted to enter the USB password ...

Page 152: ...ton to start the firmware update process 5 Press the Update Firmware button 6 The on screen instructions will prompt the user to select the firmware update file and display what it is doing at each step and some steps may take several minutes to complete 7 Press Yes to confirm and proceed with the firmware upgrade ...

Page 153: ...o not power off the instrument while the firmware update is in progress 8 The instrument should reboot automatically and should have the new firmware installed To check that the firmware was installed go to the Settings Health Check screen and view the Firmware Version button ...

Page 154: ...Includes a complete listing of data for all variables This is set at the factory Download System Log Consists of system log text files which include a listing of system errors Download Calibration History Includes the data in the calibration history screen Download Configuration Data Backup to USB Allows the user to download the configuration file from the instrument to the USB Upload Configuratio...

Page 155: ...the USB connection 1 Plug a USB flash drive into the USB connection on the front of the instrument If a USB password has been previously set you will be prompted to enter the USB password to continue Press Enter to continue 2 To continue select the OK button 3 The USB Drive will display Select Download Data To USB Drive ...

Page 156: ... transferring data to the USB drive Note Do not remove the USB drive from the instrument while the data is downloading 6 When the data download is complete the instrument will display a Success message and display the file name as it is stored on the USB flash drive The file name format is the instrument serial number name of download followed by a date time stamp Remove the USB flash drive and se...

Page 157: ... Manual 3 131 The Change USB Password screen allows the user to set a new password for accessing USB Home Screen Settings USB Drive Change USB Password Home Screen Settings Security Access Levels Change Standard Access Password Continue Change USB Password ...

Page 158: ...ers current USB password Continue Proceeds to next screen Enter New USB Password User enters new USB password Confirm New Security Access Password User confirms new security password for spelling confirmation Commit New USB Password Change Commits new USB password Cancel and Return to the Home Screen Exits screen and returns to the Home Screen without changing password ...

Page 159: ...ument serial number is 123456789 and the instrument firmware version is 1 6 8 ABCDE where the last five digits are the build number then the default USB password number will be 1A2B3C4D5E6789 Home Screen Settings Security Access Levels Reset USB Password The Reset USB Password screen contains the following information Reset Allows the user to reset the USB password Cancel and Return to the Home Sc...

Page 160: ...ils found at the screen Health Check File Sharing and Support Home Screen Settings User Contact Information The User Contact Information screen contains the following information Business Name User Name Alternate User Name User ID Business Address Business Shipping Address To User Email Address CC User Email Address 1 10 User Phone Number Alternate User Phone Number Shelter Lab Phone Number User C...

Page 161: ...uns our operating system on power up The bootloader may change to optimize hardware settings or if there are changes to the hardware If the button is blue an update to the bootloader is available If button is greyed out no update is needed Home Screen Settings Update Bootloader The Update Bootloader screen contains the following information Reboot and Update Update bootloader and reboot instrument...

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Page 163: ...bration or a zero span check First the instrument should have at least 90 minutes to warm up and stabilize Second the range used during the calibration or zero span check should be the same as that used during normal monitoring Third all operational adjustments to the instrument should be completed prior to calibration Fourth all parts of the gas flow system such as sample lines and particulate fi...

Page 164: ...ed pressure to allow accurate and reproducible flow control and to aid in subsequent operations such as drying oxidation and scrubbing An air compressor that gives an output of 10 psig is usually sufficient for most applications Several drying methods are available Passing the compressed air through a bed of silica gel using a heatless air dryer or removing water vapor with a permeation dryer are ...

Page 165: ...Multi gas Calibrator is used to generate NO2 concentrations from NO concentrations Figure 4 1 shows the suggested placement of the component parts of a gas phase titration apparatus Equipment Damage All connections between components in the system should be made with glass PTFE or other non reactive material The airflow controllers should be devices capable of maintaining constant airflows within ...

Page 166: ...the electric discharge type may produce NO and NO2 and are not recommended A valve can be used to divert the NO flow when zero air is required at the manifold The reaction chamber used for the reaction of ozone with excess NO should have sufficient volume so that the residence time meets the requirements specified in this chapter The mixing chamber is used to provide thorough mixing of the reactio...

Page 167: ... EPA 600 4 75 003 Technical Assistance Document for the Chemiluminescence Measurement of Nitrogen Dioxide In addition the procedure for the certification of a NO working standard against an NIST traceable NO standard and determination of the amount of NO2 impurity in the working standard is reproduced here The cylinder should be re certified on a regular basis as determined by the local quality co...

Page 168: ... working standard 8 Plot the difference between the analyzer NOx and NO responses versus FNO FT The slope of this plot is NO2 IMP A source of zero air free of contaminants should be used as described earlier in this chapter Contaminants can cause a detectable response on the instrument and may also react with the NO O3 or NO2 during the gas phase titration Use the following definitions for the rem...

Page 169: ...flow required at the output manifold which should be equal to the analyzer demand plus 10 to 50 percent excess 2 Establish NO OUT as the highest NO concentration that will be required at the output manifold NO OUT should be about equal to 90 of the upper range limit URL of the NO2 concentration range to be covered 3 Determine FNO as NO F x NO F STD T OUT NO 4 Select a convenient or available react...

Page 170: ...k duration times should be long enough to account for the transition purge process when switching from sample to zero and from zero to span This transition time is the time required to purge the existing air Note Depending on the plumbing configuration and the instrument data from approximately the first minute of a zero calibration or check should be disregarded because of residual sample air Als...

Page 171: ...e titrator and zero in gas generator described previously in this manual It is suggested that a calibration curve have at least seven points between the zero and full scale NO concentrations Although the seven point curve is optional two of whatever number of points is chosen should be located at the zero and 90 levels and the remaining points equally spaced between these values Note When the inst...

Page 172: ...s been connected to the cylinder and before opening the cylinder valve b Thoroughly flushing the regulator and delivery system with NO after opening the cylinder valve c Not removing the regulator from the cylinder between calibrations unless absolutely necessary 4 Connect the analyzer sample bulkhead input to the output of the GPT system Use the following procedure to adjust the instrument gain T...

Page 173: ...total demand of the analyzer The 42iQTL requires approximately 700 cc min of sample flow and a total GPT airflow of at least 1 5 liters min is recommended a Allow the analyzer to sample zero air until the NO NO2 and NOx responses stabilize b After the responses have stabilized from the Home Screen choose Calibration Calibrate Backgrounds Calibrate Prereactor Background The Target Prereactor Concen...

Page 174: ...Calculated NO Span Coefficient button will show what the span coefficient will be set to if the Calibrate button is pressed Pressing the Calibrate button will save the new NO span coefficient and calibrate the instrument 3 Enter the NO calibration gas concentration using the pushbuttons and then press Calibrate to calibrate the instrument to the NO calibration gas 4 Record the NO OUT concentration...

Page 175: ...ard NO cylinder ppm 4 Record the NOx concentration and the analyzer s NOx response Use the following procedures to prepare the NO NOx and NO2 calibration curves 1 Generate several additional NO and NOx concentrations by decreasing FNO or increasing FD 2 For each concentration generated calculate the exact NO and NOx concentrations using the above equations for NO OUT and NOx OUT 3 Record the NO an...

Page 176: ...Calibrate button is pressed Pressing the Calibrate button will save the new NO2 span coefficient and calibrate the instrument 10 Enter the NO2 calibration gas concentration using the pushbuttons and then press Calibrate to concentration to reflect the sum of the following the NO2 concentration generated by GPT NO ORIG NO REM and any NO2 impurity The exact NOx concentration is calculated from F F F...

Page 177: ...rter failure etc and should be serviced Assuming the curve is linear subsequent data should be reduced using this NO2 calibration curve response Note The user can also manually change the calibration factors This is often useful in a troubleshooting situation From the Home screen choose Calibration Advanced Calibration Manual Calibration Adjust Span Coefficients However after the above calibration...

Page 178: ...old a zero air flow rate to within 0 5 can be used for generation of span gas The flow rate of the permeation system must be at least 0 5 LPM for proper operation A permeation tube system shown in Figure 4 2 can be constructed All connections between components in the system should be made with glass PTFE or other non reactive material The air flow controllers should be capable of maintaining a co...

Page 179: ... stored in the analyzer s memory This feature may be used When widely different gas levels are being monitored such as a factor of 10 or greater apart If precision and span levels are being introduced using separate tanks If more than one multi component cylinder is being used to calibrate the instrument Properly designed chemiluminescence analyzers are inherently linear over a wide dynamic range ...

Page 180: ...libration Calibrate Backgrounds Calibrate Prereactor Background The Target Prereactor Concentration button will read 0 000 The Calculated Prereactor Background button will display the background needed to make the current Prereactor concentration go to 0 000 5 In the Calibrate Backgrounds screen press Calibrate to set the prereactor reading to zero and to save the new background 6 Press the Back b...

Page 181: ...er sets the span concentration by pressing the Edit Span Concentration button The Calculated Low Range NOx Span Coefficient button will show what the span coefficient will be set to if the Calibrate button is pressed 2 Verify that the low NOx calibration gas concentration is the same as the low NO calibration gas concentration plus any known NO2 impurity 3 Enter the NOx calibration gas concentrati...

Page 182: ... NO2 and NOx readings have stabilized 2 After the responses stabilize from the Home screen choose Calibration Calibrate Span Coefficients Calibrate High Range NO Span Coefficient The user sets the span concentration by pressing the Edit Span Concentration button The Calculated High Range NO Span Coefficient button will show what the span coefficient will be set to if the Calibrate button is presse...

Page 183: ...fficient button will show what the span coefficient will be set to if the Calibrate button is pressed 3 Set the high NO2 calibration gas concentration to reflect the sum of the NO2 concentration generated by GPT and any NO2 impurity using the pushbuttons and then press Calibrate to calculate and save the new high range NO2 span coefficient based on the entered span coefficient The analyzer require...

Page 184: ...he zero has changed by more than 0 010 ppm it is recommended that the zero not be adjusted If an adjustment larger than this is indicated due to a change in zero reading a new multipoint calibration curve should be generated 3 Attach a supply of known concentration of NO and NO2 usually generated via an NIST traceable NO working standard and a GPT system to the SAMPLE bulkhead or SPAN bulkhead for...

Page 185: ...n Manual Calibration The NO background is the amount of signal read by the analyzer in the NO channel while sampling zero air The NOx background is the amount of signal read by the analyzer in the NOx channel while sampling zero air The Adjust Background screens are used to perform a manual zero background calibration of the instrument As such the instrument should sample zero air until stable rea...

Page 186: ... a value between 0 95 and 1 050 The user can manually change the span coefficient by entering a value in the Adjust Span Coefficient button The second button called Adjusted Concentration shows what the new concentration would be based on the adjusted span coefficient Press the Calibrate button to save the adjusted span coefficient value The NO NO2 and NOx coefficient screens operate the same way ...

Page 187: ...ion Advanced Calibration Manual Calibration Adjust Coefficients Adjust High Range NO Span Coefficient dual or auto range mode The Reset Bkg to 0 000 and Span Coef to 1 000 screen allows the user to reset the calibration configuration values to factory defaults Reset Bkg to 0 000 and Span Coef to 1 000 ...

Page 188: ...of the next zero span schedule is calculated and displayed The Period button defines the period or interval between zero span schedule Periods between 0 and 999 hours are acceptable To turn the zero span schedule off set the period to 0 The Zero Duration button defines how long zero air is sampled by the instrument The Span and Purge Duration buttons look and function the same way as the zero dura...

Page 189: ...only when performing a zero span schedule The analyzer s averaging time is used for all other functions Range is 1 300 seconds Background Calibration and Span Calibration are toggle buttons that change between enabled or disabled If the background calibration is set to enabled then a zero adjustment is made If the span calibration is set to enabled then a span adjustment is made This is how to set...

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Page 191: ...e internal components can be damaged by small amounts of static electricity A properly grounded antistatic wrist strap must be worn while handling any internal component For more information about appropriate safety precautions see the Servicing chapter Use the following procedure to inspect and clean the fan filter 1 Remove the fan guard from the fan and remove the filter Refer to Filter Replacem...

Page 192: ...the power cord 2 Remove the PMT cooler from the instrument Refer to PMT Cooler Shroud Removal on page 7 29 3 Blow off the cooler fins using clean pressurized air It may be more convenient to vacuum the cooler fins In either case make sure that particulate accumulation between the fins has been removed 4 In necessary use a small brush to remove residual particulate accumulation Thermoelectric Coole...

Page 193: ...components can be damaged by small amounts of static electricity A properly ground antistatic wrist strap must be worn while handling any internal component Use the following procedure to inspect and replace the capillaries This procedure can be used to check any or all of the capillaries 1 Turn instrument OFF unplug power cord and remove the cover Figure 2 1 Figure 5 1 Inspecting and Replacing th...

Page 194: ...nd replace as necessary 4 Check capillary for particulate deposits Clean or replace as necessary 5 Replace capillary in reaction chamber body making sure the o ring is around the capillary before inserting it into the body 6 Replace fitting Note that the fitting should be tightened slightly more than hand tight 7 Reconnect tubing to top of fittings being careful to insert ferrule and o ring proper...

Page 195: ...h remove the eight socket head screws and washers securing the pump head top plate 3 Discard the old PTFE gasket 4 Note the orientation of the diaphragm head for later reassembly Remove the diaphragm head Using a 4 mm Allen wrench remove the four socket head screws securing the diaphragm head to the pump body 5 Insert the tips of blunt needlenose pliers in the dimples of the clamping disk then loo...

Page 196: ...Maintenance Pump Rebuilding 5 6 42iQTL Instruction Manual Thermo Scientific Figure 5 2 Pump Rebuilding ...

Page 197: ...appers are completely flat and straight 10 Align the diaphragm head correctly as noted in Step 2 and secure with the four socket head screws 11 Place the new PTFE gasket over the pump head so that the eight screws holes are aligned 12 Replace the top plate and secure with the eight screws and washers being sure that the Teflon gasket stays in place 13 Reconnect the plumbing to the instrument and p...

Page 198: ...r 15 Turn instrument OFF unplug the power cord 16 Block the SAMPLE bulkhead on the rear panel with a leak tight cap 17 Cap the filter at the end of the Perm Dryer 18 Connect the vacuum tester tool to the EXHAUST bulkhead on the rear panel 19 Squeeze trigger until gauge reads to pull in 10 in Hg 20 Observe vacuum gauge for stable reading for 5 minutes If reading remains at 10 in Hg no leak is prese...

Page 199: ...s on front panel do not come on and display is blank No power Verify that the power cord is plugged in power is available and that it matches the voltage and frequency configuration of the instrument Fuse is blown or missing Disconnect power and check fuses with a volt meter Bad switch or wiring connection to switch Check for 24V J9 on the Backplane board middle pins Check all wiring connections F...

Page 200: ...f the ozonator is ON If it is ON check dry air supply No output signal Disconnected or defective input or high voltage supply Unplug power cord Check that cables are connected properly Check cable resistance Analyzer not calibrated Recalibrate Defective 12 volt Check supply voltages in Status and Alarms Reaction Chamber screen Calibration drift Dryer to ozonator depleted Replace Line voltage fluct...

Page 201: ...eplace fan if not operating properly Dirty fan filter Clean or replace filter Overheating PCB Locate defective PCB reporting the error and replace if needed Alarm Bench Temperature Heaters failed Replace heaters as needed Defective PCB Replace PCB Alarm Cooler Temp Sensor Check fan operation Replace defective fan Check fan filter Clean or replace filter Bad thermistor Replace thermistor Alarm NO2 ...

Page 202: ...ge limit Check to ensure range corresponds with expected value If not select proper range Check user defined low set point set to zero Alarm Board Communication Cable connection Check that DMC cable is connected properly Reseat if needed Defective DMC PCB Replace DMC board Alarm Power Supply Cable connection Check that DMC cable is connected properly Reseat if needed Defective component Check for ...

Page 203: ... Check the cable connection from the heater to the DMC board Broken wire Verify the wires are properly connected to both sides of the heater Defective heater Replace heater as needed Defective DMC board Replace defective DMC board as needed Alarm Bench Temperature Open Cable connection Check the cable connection from the heater to the DMC board Broken wire Verify the wires are properly connected t...

Page 204: ...age too Low Defective PMT Replace PMT as needed Defective DMC board Replace DMC board as needed Alarm PMT Voltage too High Defective PMT Replace PMT as needed Defective DMC board Replace DMC board as needed Alarm Frequency too Low Input board is out of calibration Recalibrate the Input board Alarm Frequency too High Input board is out of calibration Recalibrate the Input board ...

Page 205: ...uipment may be impaired CAUTION If the LCD panel breaks do not let the liquid crystal contact your skin or clothes If the liquid crystal contacts your skin or clothes wash immediately using soap and water Do not remove the LCD panel or frame from the LCD module The LCD polarizing plate is very fragile handle it carefully Do not wipe the LCD polarizing plate with a dry cloth as it may easily scratc...

Page 206: ...ust be worn while handling any internal component For more information about appropriate safety precautions see Safety Note If an antistatic wrist strap is not available be sure to touch the instrument chassis before touching any internal components When the instrument is unplugged the chassis is not at earth ground Figure 7 1 Properly Grounded Antistatic Wrist Strap Note Ground to unpainted case ...

Page 207: ...ash drive or company website at www thermofisher com For more information on installing new firmware see Installing New Firmware in the iQ Series Communications manual For a complete list of spare parts visit the company website at www thermofisher com 42iQTL Refer to Figure 7 2 and Figure 7 3 to identify the component location Firmware Updates Replacement Parts List ...

Page 208: ...Servicing Replacement Parts List 7 4 42iQTL Instruction Manual Thermo Scientific Figure 7 2 42iQTL Component Layout Top View Figure 7 3 42iQTL Component Layout Side View ...

Page 209: ... following procedure to replace the fuses 1 Turn instrument OFF and unplug the power cord 2 Remove fuse drawer located on the AC power connector 3 If either fuse is blown replace both fuses 4 Insert fuse drawer and reconnect power cord Figure 7 4 Replacing the Fuses Fuse Replacement ...

Page 210: ...procedure to replace the filter 1 Turn instrument OFF and unplug the power cord 2 Starting with top right corner pull out to remove fan cover Figure 7 5 Start with Top Right Corner of Fan Cover 3 Replace filter and snap fan cover back in place Figure 7 6 Removing the Fan Cover Filter Replacement ...

Page 211: ...2 1 Turn instrument OFF unplug power cord and remove the cover Figure 2 1 2 Unplug the fan cable J18 Figure 7 7 Unplugging the Fan Cable 3 Starting with top right corner pull out to remove fan cover 4 Unhook the four latches of the fan cover 5 Unfasten the four 6 32 screws from the fan housing 6 Replace fan and reassemble in reverse order Fan Replacement ...

Page 212: ...Servicing Fan Replacement 7 8 42iQTL Instruction Manual Thermo Scientific Figure 7 8 Replacing the Fan ...

Page 213: ... following procedure to remove and replace the measurement side if necessary Equipment required Phillips drive 2 1 Turn instrument OFF unplug power cord and remove the cover Figure 2 1 2 Unplug the fan cable J18 Figure 7 9 Unplugging the Fan Cable 3 Unplug DMC cable Measurement Side Removal and Replacing ...

Page 214: ...0 42iQTL Instruction Manual Thermo Scientific Figure 7 10 Unplugging the DMC Cable 4 Gripping from the top corners of the front panel and pull outwards 5 Remove three 8 32 flat head screws Figure 7 11 Unfasten Hardware Front for Measurement Side Removal ...

Page 215: ... Scientific 42iQTL Instruction Manual 7 11 6 Swing arm open 7 Unfasten captive hardware 8 Remove two 8 32 flat head screws 9 Pull measurement side out 10 Replace and reassemble in reverse order Figure 7 12 Unfasten Hardware Rear for Measurement Side Removal ...

Page 216: ...dule Equipment required Wrench 1 4 1 Turn instrument OFF and unplug the power cord 2 Gripping from the top corners of the front panel and pull outwards 3 Unfasten four nuts Figure 7 13 Figure 7 13 Replacing the LCD Module 4 Remove cover 5 Unplug LCD cables from backside of board 6 Pull board off the standoffs LCD Module Replacement ...

Page 217: ...Servicing LCD Module Replacement Thermo Scientific 42iQTL Instruction Manual 7 13 Figure 7 14 Remove Electrical Cables from LCD 7 Replace LCD module and reassemble in reverse order ...

Page 218: ... Scientific Use the following procedure to replace the I O boards 8 Turn instrument OFF unplug power cord and remove the cover Figure 2 1 9 Swing arm open Figure 7 15 I O Replacement Arm 10 Pull board upwards Figure 7 16 I O Replacement Remove Board I O Replacement ...

Page 219: ...al 7 15 11 During install make sure to align cutout circular to keyway 12 Insert board downwards Figure 7 17 I O Replacement Install 13 Close arm Make sure expansion bracket aligns to the inside of the rectangular cutouts Figure 7 18 I O Replacement Close Arm Alignment ...

Page 220: ...e the peripherals support board or system controller board 1 Turn instrument OFF unplug power cord and remove the cover Figure 2 1 2 Pull tab out two per board 3 Pull board out Figure 7 19 Replacing the Peripherals Support or System Controller Board 4 Replace board and reassemble in reverse order Peripherals Support Board and System Controller Board Replacement ...

Page 221: ...nd flow board Equipment required Hex drive 7 16 1 Turn instrument OFF unplug power cord and remove the cover Figure 2 1 2 Unplug cables from the pressure and flow board Figure 7 20 Flow Pressure Board Disconnect DMC Cable 3 Disconnect plumbing 4 Using 7 16 hex drive unfasten four 6 32 socket cap head screws DMC Pressure and Flow Board ...

Page 222: ...Servicing DMC Pressure and Flow Board 7 18 42iQTL Instruction Manual Thermo Scientific Figure 7 21 Flow Pressure Board Screws 5 Replace board and reassemble in reverse order ...

Page 223: ...procedure to replace the pump Equipment required 110V pump or 220V pump 1 Disconnect the pump power line from the AC power outlet Figure 7 22 Replacing the Pump 2 Remove both inlet and exhaust lines from the pump 3 Install the new pump by following the previous steps in reverse Pump Replacement ...

Page 224: ...ad cap screws and washers C for each head and lift off the heads with tubing from the pump body Keep the heads connected if at all possible disconnecting and then reconnecting the PTFE tube can cause leaks 2 Check for smooth opening and closing of the reed valves Q a number of sets of diaphragms can be replaced before there is a need to replace the valves Follow the instructions for valve replacem...

Page 225: ...e of debris Apply a small amount of the breakable thread adhesive to the clamping disc threads and install 8 Rotate the counterweight until the connecting rod is in mid stroke and then tighten the clamping disc Do not over tighten the clamping disc Note Over tightening of the clamping disc will significantly reduce diaphragm life Tighten enough to avoid contact with the head If a significant amoun...

Page 226: ... plate Finish the cleaning with alcohol and then air dry the parts 4 Lay the two replacement reed valves on a flat surface to the direction of any slight bend 5 Lay the replacement reed valves in place center bowed out see valve installation and tighten the pan head screw both washers and the nut Be certain that the reed valves lay straight and smooth with clearance from the recessed edge to preve...

Page 227: ...Servicing Vacuum Pump Diaphragm and Valve Replacement Thermo Scientific 42iQTL Instruction Manual 7 23 Figure 7 23 Vacuum Pump Head Plate and Motor View Valve Installation Diaphragm Installation ...

Page 228: ...drive 2 1 Turn instrument OFF unplug power cord and remove the cover Figure 2 1 2 Unplug all electrical shown J9 J10 J24 J25 J26 and ground 3 Unfasten captive hardware 4 Slide power supply left clearing three case floor plate keyways Figure 7 24 Removing Power Supply 5 Pull power supply up 6 Replace power supply and reassemble in reverse order Power Supply Replacement ...

Page 229: ...Servicing Power Supply Replacement Thermo Scientific 42iQTL Instruction Manual 7 25 Figure 7 25 Replacing Power Supply ...

Page 230: ...L Board Equipment required Torque screwdriver T15 or Slot screwdriver 3 16 1 Turn instrument OFF unplug power cord and remove the cover Figure 2 1 2 Unplug Step POL power cable J4 3 Unplug Step POL signal cable J2 4 Unplug pump cable J7 5 Unfasten captive hardware Figure 7 26 Unplug and Unfasten Step POL Board Step POL Board Replacement ...

Page 231: ... 6 Slide step board 1 upwards clearing the partition panel keyway 7 If replacing step board 1 make sure switch 1 and 2 are pointed away from ON Figure 7 28 If replacing optional step board 2 make sure switch 1 is pointed towards ON and switch 2 is pointed away from ON Figure 7 28 8 Replace Step POL board and reassemble in reverse order ...

Page 232: ...Servicing Step POL Board Replacement 7 28 42iQTL Instruction Manual Thermo Scientific Figure 7 28 Step POL Board 1 Switch Settings Figure 7 29 Step POL Board 2 Switch Settings ...

Page 233: ...PMT Cooler and Reaction chamber PMT Replacement Use the following procedure to remove the PMT cooler from the instrument Equipment Required Phillips drive 2 1 Turn the instrument OFF unplug the power cord and remove the cover Figure 2 1 Make sure the PMT has cooled down before touching 2 Unhook plumbing by pulling loop downwards and unhook tubing 3 Using a 2 Phillips drive unfasten two 6 32 flat h...

Page 234: ...truction Manual Thermo Scientific Figure 7 30 Remove PMT Cooler Shroud 5 Unplug J3 J1 and J6 fan 6 Disconnect all plumbing depending on the options Configuration plumbing connections will vary 7 Using 2 Phillips drive unfasten four captive hardware 8 Pull PMT cooler upwards ...

Page 235: ...ace the PMT cooler board Equipment Required Phillips drive 2 1 Turn the instrument OFF unplug the power cord and remove the cover 2 Remove DMC Converter as described in PMT Cooler Shroud Removal in this chapter 3 Unplug all electrical connections from the board 4 Using a 2 Phillips drive unfasten six 6 32 pan head screws 5 Pull board outwards PMT Cooler Board Replacement ...

Page 236: ...Servicing DMC PMT Cooler and Reaction Chamber Replacement 7 32 42iQTL Instruction Manual Thermo Scientific Figure 7 32 Remove PMT Cooler Board ...

Page 237: ...s drive 2 1 Turn the instrument OFF unplug the power cord and remove the cover 2 Remove cooler reaction chamber DMC as described in PMT Cooler Shroud Removal in this chapter 3 Unplug heater J8 from board Figure 7 33 Photo Reaction Chamber Cleaning Electrical 4 Disconnect plumbing as shown 5 Using a 9 64 inch hex drive unfasten three 8 32 socket cap head screws Reaction Chamber Cleaning and or Remo...

Page 238: ...ge Some internal components can be damaged by small amounts of static electricity A properly grounded antistatic wrist strap must be worn while handling an internal component 7 To reinstall reaction chamber follow previous steps in reverse making sure to back fill the cooler with dry air or nitrogen prior to installing reaction chamber 8 Reinstall the measurement bench Refer to Figure 7 33 and Fig...

Page 239: ...Servicing DMC PMT Cooler and Reaction Chamber Replacement Thermo Scientific 42iQTL Instruction Manual 7 35 Figure 7 35 Photo Reaction Chamber Cleaning Window ...

Page 240: ...e 2 1 Turn the instrument OFF unplug the power cord and remove the cover Figure 2 1 2 Unplug electrical connections PMT J7 and HVPS J4 Figure 7 36 PMT Tube Replace Elec Pt1 3 Using a flat head screwdriver wedge out of top right corner starting point labeled 1 Figure 7 37 4 Continue to wedge out the four midpoints of the plate to remove the snap on access panel labeled 2 Figure 7 38 Photomultiplier...

Page 241: ...vicing DMC PMT Cooler and Reaction Chamber Replacement Thermo Scientific 42iQTL Instruction Manual 7 37 Figure 7 37 Removing the Access Panel Starting Point 5 Pull access cover out Figure 7 38 Access Cover ...

Page 242: ...screws Equipment Damage Do not point the photomultiplier tube at a light source This can permanently damage the tube 7 Pull the PMT and PMT base from cooler assembly by twisting it slightly back and forth 8 To install PMT follow previous steps in reverse order making sure to backfill the cooler with dry air or nitrogen prior to replacing the PMT 9 Perform a PMT calibration as described on page 3 8...

Page 243: ...uired Phillips drive 2 1 Turn the instrument OFF unplug the power cord and remove the cover 2 Unplug DMC cables 2X 3 Disconnect all plumbing 6X Note The amount of connections will vary depending on the different options installed 4 Using a 2 Phillips drive unfasten captive hardware 4X Figure 7 40 Converter DMC Assembly Remove DMC Converter Replacement ...

Page 244: ...ment OFF unplug the power cord and remove the cover 2 Remove DMC Converter as described in DMC Converter Replacement in this chapter 3 Unplug electrical J6 and J7 4 Using a 2 Phillips drive unfasten four 6 32 pan head screws Figure 7 41 Converter Assembly Remove bd 5 Pull converter assembly board outwards 6 Replace converter assembly board and assemble in reverse order Converter Assembly Board Rep...

Page 245: ...4 inch hex drive unfasten six 6 32 hex head screws 4 Take apart top housing assembly and insulator to get to the heater assembly 5 Remove the converter cartridge heater assembly from the bottom housing assembly 6 Loosen the heater clamp pry heater apart no wider than necessary and remove the converter cartridge noting the proper orientation of heater wires and thermocouple probe 7 To replace conve...

Page 246: ...Servicing DMC Converter Replacement 7 42 42iQTL Instruction Manual Thermo Scientific Figure 7 42 Converter Assembly Replace Heater ...

Page 247: ...lacing the ozonator and transformer board Replacing the flow switch Replacing the ammonia scrubber optional Use the following procedure to remove the ozonator and transformer Equipment Required Phillips drive 2 1 Turn the instrument OFF unplug the power cord and remove the cover Figure 2 1 2 Unplug DMC converter DMC J2 and flow pressure board J4 Figure 7 43 HVPS Electrical 3 Disconnect plumbing DM...

Page 248: ...ic 4 Using a 2 Phillips drive unfasten captive hardware 4X Figure 7 44 HVPS Remove Use the following procedure to replace the ozonator 1 Unplug ozonator J1 2 Disconnect plumbing 2X 3 Ozonator using a 2 Phillips drive unfasten two 6 32 pan head screws Ozonator Replacement ...

Page 249: ...Scientific 42iQTL Instruction Manual 7 45 Figure 7 45 Replace Ozonator Use the following procedure to replace the transformer 1 Ozonator transformer using a 2 Phillips drive unfasten four 6 32 pan head screws Transformer Replacement ...

Page 250: ...ozonator and transformer board Equipment Required Phillips drive 2 1 Remove DMC Ozonator as described in DMC Ozonator in this chapter 2 Unplug all electrical from HPVS board ozonator J1 flow switch J5 converter DMC J2 and flow pressure board J4 3 Using a 2 Phillips drive unfasten four 6 32 pan head screws Ozonator and Transformer Board Replacement ...

Page 251: ... HPVS Remove Bd Use the following procedure to replace the flow switch Equipment Required Phillips drive 2 1 Remove Ozonator as described in DMC Ozonator in this chapter 2 Unplug flow switch J5 from board 3 Pull flow switch off clip after unplugging from board Flow Switch Replacement ...

Page 252: ...ow Switch Remove Use the following procedure to replace the optional ammonia scrubber Equipment Required Phillips drive 2 1 Remove DMC Ozonator as described in DMC Ozonator in this chapter 2 Disconnect plumbing 2X 3 Pull Ammonia scrubber off clips 2X Optional Ammonia Scrubber Replacement ...

Page 253: ...Servicing DMC Ozonator Thermo Scientific 42iQTL Instruction Manual 7 49 Figure 7 49 Remove Ammonia Scrubber ...

Page 254: ...nch 9 16 Hex drive 9 64 1 Turn the instrument OFF unplug the power cord and remove the cover Figure 2 1 2 Unplug three electrical connections J5 J6 and J8 from the Step POL board 1 Figure 7 50 Replacing the Manifold pt 1 3 Unfasten three nuts Remove the nuts front and back ferrules as shown from span zero in sample back panel Figure 7 51 Optional Manifold Replacement ...

Page 255: ...fic 42iQTL Instruction Manual 7 51 Figure 7 51 Replacing the Manifold pt 2 4 Disconnect tubing 5 Using a 2 Phillips drive unfasten four 8 32 socket cap head screws Figure 7 52 Replacing the Manifold pt 3 6 Replace the manifold and assemble in reverse order ...

Page 256: ...valve and prereactor valve Equipment Required Phillips drive 1 CAUTION Allow the oven to cool down prior to servicing 1 Turn the instrument OFF unplug the power cord and remove the cover Figure 2 1 2 Unplug mode valve J5 converter valve J6 and prereactor valve J8 from step board 2 only Figure 7 53 Conv Mode Preact Electrical Connection Solenoid Valves Removal ...

Page 257: ...3 Using a 1 Phillips drive loosen two 4 40 pan head screws 4 Slide valve out Equipment Damage Do not disconnect the plumbing from the valve end Disconnect from the attaching end only This will prevent damaging and leaks from the valve end Figure 7 54 Conv Mode Preact Hardware Plumbing ...

Page 258: ......

Page 259: ...d location of the system components in the module framework including firmware electronics and I O function The 42iQTL system components include Reaction Chamber DMC Optical filter Photomultiplier tube PMT Photomultiplier tube cooler Ozonator DMC Ozonator DMC board Ozone flow switch Ozonator Permeation Dryer NO2 to NO converter DMC Converter DMC board Common Electronics Power supply System Control...

Page 260: ... ambient air sample Optical energy from the reaction is converted to an electrical signal by the PMT and sent to the input board that transmits it to the processor The thermoelectric PMT cooler reduces the PMT temperature to approximately 3 C to minimize dark current and increase instrument sensitivity The cooler helps to increase zero and span stability over a wide ambient temperature range The c...

Page 261: ...der to convert and detect NO2 The converter consists of an insulated housing heater replaceable cartridge and a type K thermocouple sensor The common electronics contain the core computational and power routing hardware for the 42iQTL and is replicated throughout other iQ series products Figure 8 1 It also contains front panel display the USB ports the Ethernet port and the optional I O interfaces...

Page 262: ...POWER FILTER SWITCH GND SYSTEM CONTROLLER BOARD A C FRONT USB PORT BOARD DISPLAY LEDS MFC 1 TOUCH SCREEN LCD DISPLAY 48V POWER SUPPLY DMC 1 DMC 2 24V POWER 2 POL 1 DATA POL 2 24V POL 1 24V POWER POWER POL 2 DATA 24V POWER 1 RESET FRONT PANEL Only if 48V is required BOARD Backplane Measurement Case MFC 2 MFC 3 Not all connections apply to all Model iQ instruments OUT A C OUT GROUND TAB iQ Series Co...

Page 263: ...ackplane Measurement Case POL 1 DATA POL 1 24V POWER DMC 1 Fan Fan 24V Zero Sol Span Sol Sample Sol NO NOx Mode Sol Converter Mode Sol 42 Ozonator DMC 42 Converter DMC 42 PMT Cooler DMC PMT Sensor Heater Fan TEC Heater Sensor Flow Switch O 3 iQ Series 42 TL Pre Reactor Mode Sol Optional Optional Figure 8 2 42iQTL System Interconnect Diagram ...

Page 264: ...munication channels as described in Chapter 3 Operation The System Controller Board SCB contains the main processor power supplies and a sub processor and serves as the communication hub for the instrument The SCB receives operator inputs from the front panel GUI and or over optional I O connections on the rear panel The SCB sends commands to the other boards to control the functions of the instru...

Page 265: ...ction chamber The mode solenoid valve switches analyzer operation between the NO mode and NOx mode It routes the ambient air sample either through the reaction chamber NO mode or through the NO2 to NO converter and then to the reaction chamber NOx mode Optional solenoid valves for switching between sample zero and span gases and other optional components The flow pressure DMC performs the pressure...

Page 266: ...oller Board SCB via internal RS 485 SNMP registers that are maintained in the software and SCB for health and data processing computation The Modbus communication system operates on 1 second intervals Within those intervals data treatment like integration whether analog or digital and servo control are embedded in the module firmware The SCB receives the 1 second updates for higher level software ...

Page 267: ... is available with the following options Several components are available for connecting external devices These connection options consist of three plug in boards Communication Board Analog I O Board Digital I O Board Figure 9 1 I O Expansion Replacement Boards Connecting External Devices ...

Page 268: ...uses a 9 pin serial connector with a bi directional serial interface that can be configured for either RS 232 or RS 485 communication Figure 9 2 RS 232 RS 485 Port Table 9 1 RS 232 RS 485 Port Terminal Assignment Terminal Number Signal Name 1 No Connect 2 RX RS485_RX_P 3 TX RS485_TX_N 4 No Connect 5 GND 6 No Connect 7 RTS RS485_TX_P 8 CTS RS485_RX_N 9 No Connect Communication Board RS 232 RS 485 P...

Page 269: ...rt devices Figure 9 3 RS 485 External Accessory Port Table 9 2 RS 485 External Accessory Port Terminal Assignment Terminal Number Signal Name 1 EXT_RS485_RX_N 2 EXT_RS485_RX_P 3 5V Fused 0 4A 4 5V Fused 0 4A 5 5V Fused 0 4A 6 GND 7 GND 8 GND 9 EXT_RS485_TX_N 10 EXT_RS485_TX_P 11 24V Fused 0 4A 12 24V Fused 0 4A 13 24V Fused 0 4A 14 24V Fused 0 4A 15 24V Fused 0 4A RS 485 External Accessory Port ...

Page 270: ...nges 0 1 0 V 0 5 0 V 0 10 V 6 Isolated Analog Current Outputs Two Ranges 0mA 20mA 4mA 20mA Table 9 3 lists the analog voltage inputs are used to monitor four external 0 10V signals Figure 9 4 Analog Voltage Inputs Table 9 3 Analog Voltage Inputs Assignment Terminal Number Signal Name 1 Analog In 1 2 Analog GND 3 Analog In 2 4 Analog GND 5 Analog In 3 6 Analog GND 7 Analog In 4 8 Analog GND Analog ...

Page 271: ...ed through the software control registers to select Voltage Output ranges 0 1 V 0 5 V or 0 10 V as well as Current Output ranges 0 20 mA or 4 20 mA The maximum allowable load for each Current Output is 1000 Ω All Voltage Outputs and Current Outputs are continuously monitored separately for accuracy The Analog Outputs may be used to control and report parameters pertinent to the analyzers measured ...

Page 272: ...t 6 18 C V Return 6 The iQ series instruments provide for the ability to calibrate the analog outputs both voltage and current of the instruments The basic procedure for both voltage and current are the same using the following procedure Complete the connections of the recording device to the desired analog output channel See page 9 5 for the channel information Calibrate the output channel low le...

Page 273: ...ation follow the same procedure by selecting the 4 mA current calibration option Note This adjustment should only be performed by an instrument service technician 1 From the Home screen choose Settings Communications Analog I O Analog Out Calibration 2 Depending on the output type being used select either Analog Out Zero Calibration Voltage or Analog Out 4 000 mA Calibration Current 3 A confirmati...

Page 274: ...rease Decreases the output by coarse medium or fine amounts Increase Increase and Increase Increases the output by coarse medium or fine amounts Commit Accepts the changes to the analog output levels 5 For the desired analog output channel increase or decrease the output until the reading on the recording device indicates the proper value 6 After making changes to the output levels the commit butt...

Page 275: ... follow the same procedure by selecting the 20 mA current calibration option Note This adjustment should only be performed by an instrument service technician 1 From the Home screen choose Settings Communications Analog I O Analog Output Calibration 2 Depending on the output type being used select either Analog Out Full Scale Calibration Voltage or Analog Out 20 000 mA Calibration Current 3 A conf...

Page 276: ...rease Decrease and Decrease Decreases the output by coarse medium or fine amounts Increase Increase and Increase Increases the output by coarse medium or fine amounts Commit Accepts the changes to the analog output levels 5 For the desired analog output channel increase or decrease the output until the reading on the recording device indicates the proper value 6 After making changes to the output ...

Page 277: ...tal Relay Switches 20 pin connector 8 Valve Driver Outputs 16 pin connector The digital inputs are TTL 3 V or 5 V compatible and are pulled high within the instrument The active state can be user defined in firmware Logic Low Threshold 0 8 V Logic High Threshold 2 0 V Absolute allowable input voltages 0 5 to 5 5 V Figure 9 6 Digital Inputs Digital I O Board Digital Inputs ...

Page 278: ...uts Terminal Assignment Terminal Number Signal Name COMMON 1 Digital In 1 2 Digital In 2 3 Digital In 3 4 Digital In 4 5 Digital In 5 6 Digital In 6 7 Digital In 7 8 Digital In 8 9 Digital In 9 10 Digital In 10 11 Digital In 11 12 Digital In 12 13 Digital In 13 14 Digital In 14 15 Digital In 15 16 Digital In 16 COMMON ...

Page 279: ...ing External Devices Thermo Scientific 42iQTL Instruction Manual 9 13 Table 9 6 lists the digital relay switches Maximum Voltage 300 VDC Maximum Current 500 mA Fuse 800 mA Figure 9 7 Digital Relay Switches Digital Relay Switches ...

Page 280: ...6 Digital Relay Switch Assignment Terminal Number Signal Name 1A Relay 1A 1B Relay 1B 2A Relay 2A 2B Relay 2B 3A Relay 3A 3B Relay 3B 4A Relay 4A 4B Relay 4B 5A Relay 5A 5B Relay 5B 6A Relay 6A 6B Relay 6B 7A Relay 7A 7B Relay 7B 8A Relay 8A 8B Relay 8B 9A Relay 9A 9B Relay 9B 10A Relay 10A 10B Relay 10B ...

Page 281: ... Instruction Manual 9 15 Table 9 7 lists the valve driver outputs Actual Output Voltage 22 24 VDC Maximum Current 300 mA Both positive and negative outputs are protected from over voltage and over current by 500 mA fuses Figure 9 8 Valve Driver Outputs Valve Driver Outputs ...

Page 282: ...l Name 1 Valve Drive 1 1 Valve Drive 1 2 Valve Drive 2 2 Valve Drive 2 3 Valve Drive 3 3 Valve Drive 3 4 Valve Drive 4 4 Valve Drive 4 5 Valve Drive 5 5 Valve Drive 5 6 Valve Drive 6 6 Valve Drive 6 7 Valve Drive 7 7 Valve Drive 7 8 Valve Drive 8 8 Valve Drive 8 Note Intended for 24 V valves These outputs will also drive any DC load of 22 24 VDC up to 300 mA ...

Page 283: ...ource of zero air is connected to the ZERO IN port as shown in Figure 9 9 Zero in and span gas should be supplied at atmospheric pressure It may be necessary to use an atmospheric dump bypass plumbing arrangement to accomplish this For more information refer to the Installation and Setup chapter and the Operation chapter Figure 9 9 Flow Diagram Zero Span Option Internal Zero Span and Sample Valves...

Page 284: ...r option it is not necessary to constantly replenish the ozonator air drying column as in the standard instrument A 5 10 micron pore size two inch diameter PTFE element is available for the 42iQTL This filter should be installed just prior to the SAMPLE bulkhead When using a filter all calibrations and span checks must be performed through the filter The ozone particulate filter minimizes the pote...

Page 285: ...rious personal injury if the warning is ignored A hazard is present or an unsafe practice can result in serious personal injury if the warning is ignored The hazard or unsafe practice could result in minor to moderate personal injury if the warning is ignored Equipment Damage The hazard or unsafe practice could result in property damage if the warning is ignored Safety and Equipment Damage Alerts ...

Page 286: ...parts may be new or refurbished at the election of Seller All replaced parts shall become the property of Seller Shipment to Buyer of repaired or replacement Products shall be made in accordance with the Delivery provisions of the Seller s Terms and Conditions of Sale Consumables including but not limited to lamps fuses batteries bulbs and other such expendable items are expressly excluded from th...

Page 287: ...R S PRIOR WRITTEN APPROVAL OR ANY USE OF REPLACEMENT PARTS NOT SUPPLIED BY SELLER SHALL IMMEDIATELY VOID AND CANCEL ALL WARRANTIES WITH RESPECT TO THE AFFECTED PRODUCTS THE OBLIGATIONS CREATED BY THIS WARRANTY STATEMENT TO REPAIR OR REPLACE A DEFECTIVE PRODUCT SHALL BE THE SOLE REMEDY OF BUYER IN THE EVENT OF A DEFECTIVE PRODUCT EXCEPT AS EXPRESSLY PROVIDED IN THIS WARRANTY STATEMENT SELLER DISCLA...

Page 288: ...Thermo Fisher Scientific s compliance with these Directives the recyclers in your country and information on Thermo Fisher Scientific products which may assist the detection of substances subject to the RoHS Directive are available at www thermoscientific com WEEERoHS The following symbol and description identify the WEEE marking used on the instrument and in the associated documentation Symbol De...

Page 289: ...ass Plumbing 2 8 Figure 2 8 Front Panel and Touchscreen Display 2 9 Figure 4 1 GPT System 4 4 Figure 4 2 Permeation Tube System 4 16 Figure 5 1 Inspecting and Replacing the Capillaries 5 3 Figure 5 2 Pump Rebuilding 5 6 Figure 7 1 Properly Grounded Antistatic Wrist Strap 7 2 Figure 7 2 42iQTL Component Layout Top View 7 4 Figure 7 3 42iQTL Component Layout Side View 7 4 Figure 7 4 Replacing the Fu...

Page 290: ...ettings 7 28 Figure 7 30 Remove PMT Cooler Shroud 7 30 Figure 7 31 Remove PMT Cooler 7 31 Figure 7 32 Remove PMT Cooler Board 7 32 Figure 7 33 Photo Reaction Chamber Cleaning Electrical 7 33 Figure 7 34 Photo Reaction Chamber Cleaning Hardware 7 34 Figure 7 35 Photo Reaction Chamber Cleaning Window 7 35 Figure 7 36 PMT Tube Replace Elec Pt1 7 36 Figure 7 37 Removing the Access Panel Starting Point...

Page 291: ...igure 9 6 Digital Inputs 9 11 Figure 9 7 Digital Relay Switches 9 13 Figure 9 8 Valve Driver Outputs 9 15 Figure 9 9 Flow Diagram Zero Span Option 9 17 Table 1 1 42iQTL Specifications 1 5 Table 4 1 Scrubbing Materials 4 3 Table 6 1 42iQTL Troubleshooting Guide 6 1 Table 9 1 RS 232 RS 485 Port Terminal Assignment 9 2 Table 9 2 RS 485 External Accessory Port Terminal Assignment 9 3 Table 9 3 Analog ...

Page 292: ......

Page 293: ...rary Public License version 2 hence the version number 2 1 Preamble The licenses for most software are designed to take away your freedom to share and change it By contrast the GNU General Public Licenses are intended to guarantee your freedom to share and change free software to make sure the software is free for all its users This license the Lesser General Public License applies to some special...

Page 294: ...ot the original version so that the original author s reputation will not be affected by problems that might be introduced by others Finally software patents pose a constant threat to the existence of any free program We wish to make sure that a company cannot effectively restrict the users of a free program by obtaining a restrictive license from a patent holder Therefore we insist that any paten...

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Page 296: ...ibrary You may charge a fee for the physical act of transferring a copy and you may at your option offer warranty protection in exchange for a fee 2 You may modify your copy or copies of the Library or any portion of it thus forming a work based on the Library and copy and distribute such modifications or work under the terms of Section 1 above provided that you also meet all of these conditions a...

Page 297: ... Library To do this you must alter all the notices that refer to this License so that they refer to the ordinary GNU General Public License version 2 instead of to this License If a newer version than version 2 of the ordinary GNU General Public License has appeared then you can specify that version instead if you wish Do not make any other change in these notices Once this change is made in a giv...

Page 298: ... under Section 6 Otherwise if the work is a derivative of the Library you may distribute the object code for the work under the terms of Section 6 Any executables containing that work also fall under Section 6 whether or not they are linked directly with the Library itself 6 As an exception to the Sections above you may also combine or link a work that uses the Library with the Library to produce ...

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Page 300: ...d parties with this License 11 If as a consequence of a court judgment or allegation of patent infringement or for any other reason not limited to patent issues conditions are imposed on you whether by court order agreement or otherwise that contradict the conditions of this License they do not excuse you from the conditions of this License If you cannot distribute so as to satisfy simultaneously ...

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Page 302: ...e library It is safest to attach them to the start of each source file to most effectively convey the exclusion of warranty and each file should have at least the copyright line and a pointer to where the full notice is found one line to give the library s name and a brief idea of what it does Copyright C year name of author This library is free software you can redistribute it and or modify it un...

Page 303: ...er terms of your choice provided that i the header files of the Library have not been modified and ii the incorporated material is limited to numerical parameters data structure layouts accessors macros inline functions and templates and iii you comply with the terms of Section 6 of the GNU Lesser General Public License version 2 1 Moreover you may apply this exception to a modified version of the...

Page 304: ......

Page 305: ...one using firs a zero gas then a span gas generated by dilution of a calibration gas cylinder Dilution is done by dynamic mixing of accurately known flows of span gas and zero gas For Trace Level analyzers mass flow controllers that are NIST traceable are required Nitric oxide and sulfur dioxide calibration standards between 1 and 10 ppm are readily available in specially treated cylinders and hav...

Page 306: ... psig is dried by passing the air through a heatless air dryer for example and then sent through a series of chemical reactors and or scrubbers Normally these include indicating silica gel Purafil activated charcoal and a fine 5 micron particulate filter When first used this brute force approach actually can generate enhanced impurity levels for NOx and SO2 as these gases desorb from the chemical ...

Page 307: ...ted States Environmental Agency Tennessee Valley Authority Battelle National Labs and THERMO FISHER SCIENTIFIC s Engineering Department have demonstrated that Trace Level analyzers are readily calibrated at the low concentration levels require for sub ambient monitoring Although extra care is required primarily in zero air generation users familiar with normal compliance requirements should be abl...

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