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Teledyne API – Model T400 O

Analyzer

083730400A DCN8130

5.7.9.7 PRESSURE/FLOW SENSOR ASSEMBLY

This assembly is only present in analyzers with O

generator and/or photometer options

installed. The pressure/flow sensor PCA, located at the rear of the instrument between

the photometer and the pump, can be checked with a voltmeter. The following procedure

assumes that the wiring is intact and that the motherboard as well as the power supplies

are operating properly:

BASIC PCA OPERATION:

•

Measure the voltage across C2: it should be 5 VDC ± 0.25 VDC. If not, then the board is

bad

•

Measure the voltage between TP2 and TP1 and also across C1: it should be 10 VDC ±

0.25 VDC. If not, then the board is bad.

PHOTOMETER PRESSURE SENSOR:

1. Measure the pressure on the inlet side of S1 with an external pressure meter.
2. Measure the voltage across TP4 and TP1.

•

The expected value for this signal should be:

Expected mVDC

4660

mvDC

250

mvDC

(

)

Pressure

30.0

In-Hg-A

± 10%

rdg

EXAMPLE: If the measured pressure is 20 In-Hg-A, the expected voltage level between

TP4 and TP1 would be between 2870 mVDC and 3510 mVDC.

EXAMPLE: If the measured pressure is 25 In-Hg-A, the expected voltage level between

TP4 and TP1 would be between 3533 mVDC and 4318 mVDC.

•

If this voltage is out of range, then pressure transducer S1 is bad, or the board is

bad, or there is a pneumatic failure preventing the pressure transducer from sensing

the absorption cell pressure properly.

PHOTOMETER FLOW SENSOR:

•

Measure the voltage across TP3 and TP1.

•

With proper flow (800 cc

/min through the photometer), this should be approximately

4.5V (this voltage will vary with altitude).

•

With flow stopped (photometer inlet disconnected or pump turned OFF) the voltage

should be approximately 1V.

•

If the voltage is incorrect, the flow sensor S3 is bad, the board is bad or there is a

leak upstream of the sensor.

Содержание T400

Страница 1: ...tware Teledyne API TAPI 9970 Carroll Canyon Road San Diego CA 92131 1106 USA Toll free Phone 1 800 324 5190 Phone 1 858 657 9800 Fax 1 858 657 9816 Email api sales teledyne com Website http www teledyne api com Copyright 2019 083730400A DCN8130 Teledyne API 31 May 2019 ...

Страница 2: ......

Страница 4: ...3 Analyzer 083730400A DCN8130 TRADEMARKS All trademarks registered trademarks brand names or product names appearing in this document are the property of their respective owners and are used herein for identification purposes only ...

Страница 5: ...er tools could result in damage to the part s and or the instrument Technician Symbol All operations marked with this symbol are to be performed by qualified maintenance personnel only Electrical Ground This symbol inside the instrument marks the central safety grounding point for the instrument CAUTION This instrument should only be used for the purpose and in the manner described in this manual ...

Страница 6: ...spécifiques MISE EN GARDE Surface chaude Ne pas toucher Toucher à certaines parties de l instrument sans protection ou sans les outils appropriés pourrait entraîner des dommages aux pièces ou à l instrument Pictogramme technicien Toutes les opérations portant ce symbole doivent être effectuées uniquement par du personnel de maintenance qualifié Mise à la terre Ce symbole à l intérieur de l instrum...

Страница 7: ... provided but not manufactured by TAPI is warranted and will be repaired to the extent and according to the current terms and conditions of the respective equipment manufacturer s warranty PRODUCT RETURN All units or components returned to Teledyne API should be properly packed for handling and returned freight prepaid to the nearest designated Service Center After the repair the equipment will be...

Страница 8: ...connect Diagram Appendix B Support manuals that are available on the CD of Instrument User Manuals and on the TAPI website http www teledyne api com include NumaView Remote Software User Guide part number 08492 Hessen Protocol Manual part number 04585 Fundamentals of ESD Manual part number 04786 to prevent Electro Static Discharge and consequent damage to instrument Pump Pack Manual part number 07...

Страница 9: ...elated pertinent information ATTENTION COULD DAMAGE INSTRUMENT AND VOID WARRANTY This special notice provides information to avoid damage to your instrument and possibly invalidate the warranty IMPORTANT IMPACT ON READINGS OR DATA Provides information about that which could either affect accuracy of instrument readings or cause loss of data NOTE Provides information pertinent to the proper care op...

Страница 10: ... 39 2 3 2 2 Pneumatic Connections Zero Span Z S Option 41 2 3 2 3 Pneumatic Connections Internal Zero Span IZS Option 43 2 3 2 4 Pneumatic Connections Ambient Air Monitoring in Same Room 44 2 3 2 5 Pneumatic Connections Ambient Air Monitoring in Remote Locations 45 2 3 3 Pneumatic Flow Diagrams 46 2 3 3 1 Pneumatic Flow Basic Configuration 46 2 3 3 2 Pneumatic Flow Zero Span ZS Valve Option 47 2 3...

Страница 11: ...tion 82 3 4 2 Hessen 84 3 4 2 1 Hessen Com Port Configuration 84 3 4 2 2 Hessen Settings Configuration 85 4 Calibration 87 4 1 Important Precalibration Information 87 4 1 1 Calibration Requirements 87 4 1 2 Zero Air 87 4 1 3 Calibration Span Gas 88 4 1 4 Interferents 88 4 1 5 Dilution Ratio Option Software Set Up 88 4 1 6 Data Recording Devices 89 4 2 Calibration Procedures 89 4 2 1 Calibration an...

Страница 12: ...Ds 118 5 7 4 1 CPU Status Indicator 118 5 7 4 2 I2C Bus Watchdog Status LED 119 5 7 4 3 O3 Option Status LED 119 5 7 5 Flow Problems 121 5 7 5 1 Flow is Zero 121 5 7 5 2 Low Flow 122 5 7 5 3 High Flow 122 5 7 5 4 Actual Flow Does Not Match Displayed Flow 122 5 7 5 5 Sample Pump 122 5 7 6 Calibration Problems 122 5 7 6 1 Miscalibrated 122 5 7 6 2 Non Repeatable Zero and Span 123 5 7 6 3 Inability t...

Страница 13: ...rcury Vapor 143 6 2 Pneumatic Operation 143 6 2 1 Sample Gas Air Flow 144 6 2 2 Flow Rate Control 144 6 2 3 Particulate Filter 145 6 2 4 Pneumatic Sensors 146 6 2 4 1 Sample Pressure Sensor 146 6 2 4 2 Sample Flow Sensor 146 6 3 Electronic Operation 146 6 3 1 CPU 148 6 3 1 1 Disk On Module DOM 148 6 3 1 2 Flash Chip 148 6 3 2 Motherboard 149 6 3 2 1 A to D Conversion 149 6 3 2 2 Sensor Inputs 149 ...

Страница 14: ...O3 Analyzer 083730400A DCN8130 6 2 Software Operation 161 6 2 1 Adaptive Filter 162 6 2 2 Temperature Pressure Compensation TPC 162 6 2 3 Calibration Slope and Offset 163 Appendix A MODBUS Registers Appendix B Interconnect Diagram ...

Страница 15: ...tatus Screens at Startup 49 Figure 2 22 Home Page Example 50 Figure 2 23 Viewing Active Alerts Page 50 Figure 2 24 Sample Dashboard Page 51 Figure 2 36 DAS Download Page 63 Figure 2 42 Homescreen Configuration 69 Figure 2 43 Digital Outputs Setup 70 Figure 2 44 Analog Output Configuration Example 71 Figure 2 45 Analog Outputs Group Calibration Screen 72 Figure 2 46 Analog Outputs Manual Calibratio...

Страница 16: ... Electronic Block Diagram 147 Figure 6 6 CPU Board 148 Figure 6 7 Relay Board Layout 151 Figure 6 8 Relay Board with Safety Shield In Place 152 Figure 6 9 Relay Board with AC Relay Retainer in Place 152 Figure 6 10 Relay Board Status LED Locations 153 Figure 6 11 Heater Control Loop Block Diagram 154 Figure 6 12 Power Distribution Block Diagram 156 Figure 6 13 Location of AC Power Configuration Ju...

Страница 17: ...le 2 13 COM1 COM2 Configuration 76 Table 2 14 LAN Ethernet Configuration Properties 78 Table 3 1 Ethernet Status Indicators 81 Table 3 2 Teledyne API s Hessen Protocol Response Modes 85 Table 3 3 Default Hessen Status Flag Assignments 86 Table 4 1 AUTO CAL States 93 Table 4 2 Auto Cal Setup Combinations 94 Table 4 3 Auto Cal Programming Sequence Execution 94 Table 5 1 T400 Maintenance Schedule 98 ...

Страница 18: ...nds a switching valve alternates measurement between a gas stream containing ozone and a stream that has been scrubbed of ozone These measurements are calculated along with the ambient sample gas pressure and temperature to provide a true stable ozone measurement The T400 tracks operational parameters and issues warnings if they fall outside diagnostic limits as well as stores easily retrievable d...

Страница 19: ...umption 110 120 V 60 Hz 3 0 A 220 240 V 50 Hz 3 0 A 220 240 V 60 Hz 3 0 A 110 W 112 W 112 W Analog Output Ranges 10V 5V 1V 0 1V selectable Recorder Offset 10 Standard I O 1 Ethernet 10 100Base T 2 RS 232 300 115 200 baud 2 USB device ports 8 opto isolated digital outputs 6 opto isolated digital inputs 3 defined 3 spare 4 analog outputs Optional I O 1 USB com port 1 RS485 4 digital alarm outputs Mu...

Страница 20: ...s Model T400 photometric ozone analyzer is officially designated as US EPA Federal Equivalent Method FEM Designation Number EQOA 0992 087 The official List of Designated Reference and Equivalent Methods is published in the U S Federal Register http www3 epa gov ttn amtic criteria html and specifies the instrument s settings and configurations 1 3 SAFETY IEC EN 61010 1 2010 3rd Edition Safety requi...

Страница 21: ...t http www teledyne api com ATTENTION COULD DAMAGE INSTRUMENT AND VOID WARRANTY Do not operate this instrument without first removing dust plugs from SAMPLE and EXHAUST ports on the rear panel Note Teledyne API recommends that you store shipping containers and materials for future use if when the instrument should be returned to the factory for repair and or calibration service See Warranty statem...

Страница 22: ...nternal wiring harnesses and pneumatic hoses to ensure they are firmly and securely seated 4 Verify that all of the optional hardware ordered with the unit has been installed These are listed on the paperwork accompanying the instrument WARNING ELECTRICAL SHOCK HAZARD Never disconnect PCAs wiring harnesses or electronic subassemblies while under power 2 1 1 VENTILATION CLEARANCE Whether the analyz...

Страница 23: ...panel connectors and internal chassis layout 2 2 1 FRONT PANEL The front panel Figure 2 1 includes two USB ports for peripheral device connections which can be used with mouse and keyboard as alternatives to the touchscreen interface or with flash drive for uploads downloads devices not included Figure 2 1 Front Panel Layout ...

Страница 24: ...yne API Model T400 O3 Analyzer 083730400A DCN8130 2 2 2 REAR PANEL Figure 2 2 shows the layout of the rear panel Figure 2 2 Rear Panel Layout Table 2 2 provides a description of each component on the rear panel ...

Страница 25: ...f calibrated span gas here option ZERO AIR Internal Zero Air On units with zero span valve option installed connect the source of zero air here option DRY AIR On units with zero span valve option installed connect the source of dry air here 20 C dew point RX TX LEDs indicate receive RX and transmit TX activity on the when blinking COM 2 Serial communications port for RS 232 or RS 485 RS 232 Serial...

Страница 26: ... T400 O3 Analyzer 083730400A DCN8130 2 2 3 INTERNAL CHASSIS CAUTION UV RADIATION RISK Do not look directly at the light of the UV lamp Use proper UV protective lenses Figure 2 3 T400 Internal Layout Top View with IZS Option ...

Страница 27: ...defeat the ground wire on power plug Turn off instrument power before disconnecting or connecting electrical subassemblies Do not operate with cover off Ensure that installation provides access to disconnect power from the instrument CAUTION AVOID DAMAGE TO THE INSTRUMENT Ensure that the AC power voltage matches the voltage indicated on the instrument s model specs label before plugging it into li...

Страница 28: ...ound I Out 3 A2 V Out I Out 4 Ground I Out 5 A3 V Out I Out 6 Ground I Out 7 A4 V Out I Out 8 Ground I Out 2 3 1 3 CURRENT LOOP ANALOG OUTPUTS OPTION 41 SETUP If your analyzer had this option installed at the factory there are no further connections to be made Otherwise it can be installed as a retrofit for each of the analog outputs This option converts the DC voltage analog output to a current s...

Страница 29: ...rotection i e ESD grounding straps mats and containers Failure to use ESD protection when working with electronic assemblies will void the instrument warranty For information on preventing ESD damage refer to the manual Fundamentals of ESD PN 04786 which can be downloaded from our website at http www teledyne api com Figure 2 5 Current Loop Option Installed on Motherboard ...

Страница 30: ...to the unit both sides Slide the cover back and lift straight up 4 Remove the screw holding the current loop option to the motherboard 5 Disconnect the current loop option PCA from the appropriate connector on the motherboard see Figure 2 5 6 Each connector J19 and J23 requires two shunts Place one shunt on the two left most pins and the second shunt on the two pins next to it see Figure 2 5 7 Rea...

Страница 31: ...at the input will draw from an external device When connecting to a unit that does not have this feature an external dropping resistor must be used to limit the current through the transistor output to less than 50 mA At 50 mA the transistor will drop approximately 1 2V from its collector to emitter STATUS 1 2 3 4 5 6 7 8 D 5V to external device Map the digital outputs 1 thru 8 through the Setup D...

Страница 32: ...Supply Local Power Connections non isolated configuration External Power Connections isolated configuration Figure 2 7 Control Input Connector Table 2 5 Control Input Signals INPUT STATUS DEFINITION ON CONDITION A REMOTE ZERO CAL The analyzer is placed in zero calibration mode B REMOTE LOW SPAN CAL The analyzer is placed in low span calibration mode C REMOTE SPAN CAL The analyzer is placed in span...

Страница 33: ...ltidrop and optional RS 485 connectors In addition to using the appropriate cables each type of communication method must be configured using the SETUP COMM menu Section 2 5 10 ETHERNET CONNECTION For network or Internet communication with the analyzer connect an Ethernet cable from the analyzer s rear panel Ethernet interface connector to an Ethernet access port Although Ethernet is DHCP enabled ...

Страница 34: ...tion Section Section 3 2 1 and or Section 3 4 2 for Hessen protocol IMPORTANT IMPACT ON READINGS OR DATA Cables can appear to be compatible due to matching connectors but their internal wiring can make the link inoperable Check cables acquired from sources not from Teledyne API for pin assignments Figure 2 9 before using Electronically the difference between the DCE and DTE is the pin assignment o...

Страница 35: ...from the factory the analyzer is set up to emulate an RS 232 DCE device with Pin 3 of the DB 9 connector designated for receiving data and Pin 2 designated for sending data View these parameters in the Setup Comm COM1 COM2 menu RS 232 COM1 RS 232 fixed DB 9 male connector Baud rate 115200 bits per second baud Data Bits 8 data bits with 1 stop bit Parity None COM2 RS 232 configurable to RS 485 DB 9...

Страница 36: ...rom our website at http www teledyne api com under Help Center Product Manuals in the Special Manuals section In each instrument with the Multidrop option there is a shunt jumpering two pins on the serial Multidrop and LVDS printed circuit assembly PCA as shown in Figure 2 11 This shunt must be removed from all instruments except that designated as last in the multidrop chain which must remain ter...

Страница 37: ...analyzer s RS232 port then from the first analyzer s COM2 port to the second analyzer s RS232 port from the second analyzer s COM2 port to the third analyzer s RS232 port etc connecting in this fashion up to eight analyzers subject to the distance limitations of the RS 232 standard 6 On the rear panel of each analyzer adjust the DCE DTE switch so that the green and the red LEDs RX and TX of the CO...

Страница 38: ...cating from the host power on the instruments and check that the Machine ID code is unique for each In the Setup Vars menu check Instrument ID in the list of variables To change select the variable and press the Edit button once changed press the Enter button 8 Next in the Setup Comm COM1 menu do not use the COM2 menu for multidrop use the Edit button to set COM1 Quiet Mode and COM1 Multidrop to E...

Страница 39: ...ration Pneumatic flow diagrams are shown in Section 2 3 3 Calibration instructions are provided in Section 4 Before making the pneumatic connections carefully note the following cautionary and special messages CAUTION General Safety Hazard Ozone O3 is a toxic gas Do not vent calibration gas or sample gas into enclosed areas Obtain a Safety Data Sheet SDS for this material Read and rigorously follo...

Страница 40: ...st and supply line fittings before powering on operating instrument These plugs should be kept for reuse in the event of future storage or shipping to prevent debris from entering the pneumatics IMPORTANT LEAK CHECK Run a leak check once the appropriate pneumatic connections have been made check all pneumatic fittings for leaks using the procedures defined in Section 5 6 3 See Figure 2 2 and Table...

Страница 41: ...her case we recommend using a Gas Dilution Calibrator such as a TAPI Model T700 with internal photometer option In the case of O3 measurements made with the Model T400 photometric ozone analyzer it is recommended that you use a span gas with an O3 concentration equal to 90 of the reporting range for your application EXAMPLE If the application is to measure between 0 ppm and 500 ppb an appropriate ...

Страница 42: ... on the sample gas line This vent line must be At least 0 2m long No more than 2m long Vented outside the shelter or immediate area surrounding the instrument CALIBRATION GAS SOURCES The source of calibration gas is also attached to the SAMPLE inlet but only when a calibration operation is actually being performed EXHAUST OUTLET Attach an exhaust line to the analyzer s EXHAUST outlet fitting The e...

Страница 43: ...n OPT 50A The instrument s zero air and span gas flow rate required for this option is 800 cc min however the US EPA recommends that the cal gas flow rate be at least 1600 cc min SAMPLE GAS SOURCE Attach a sample inlet line to the SAMPLE inlet fitting Sample Gas pressure must equal ambient atmospheric pressure 1 0 psig In applications where the sample gas is received from a pressurized manifold a ...

Страница 44: ...supply lines should be Vented outside the enclosure Not less than 2 meters in length Not greater than 10 meters in length EXHAUST OUTLET Attach an exhaust line to the EXHAUST outlet fitting The exhaust line should be PTFE tubing A maximum of 10 meters long Vented outside the T400 analyzer s enclosure CAUTION Ozone Exposure Risk Venting should be outside the shelter or immediate area surrounding th...

Страница 45: ...e sample gas is received from a pressurized manifold a vent must be placed on the sample gas line This vent line must be At least 0 2m long No more than 2m long Vented outside the shelter or immediate area surrounding the instrument ZERO AIR SOURCE Attach a gas line from the source of zero air e g a Teledyne API M701 zero air Generator to the DRY AIR inlet The gas from this line will be used inter...

Страница 46: ...2 16 Gas Line Connections when the T400 Analyzer is Located in the Room Being Monitored SAMPLE GAS AND DRY AIR SOURCES For instruments located in the same room being monitored there is no need to attach the gas inlet lines to the SAMPLE inlet or the DRY AIR inlet EXHAUST OUTLET Attach an exhaust line to the EXHAUST outlet fitting The end of the exhaust line should be at least 2 feet from the rear ...

Страница 47: ...th Figure 2 17 Gas Line Connections when the T400 Analyzer is Monitoring a Remote Location SAMPLE GAS SOURCE Attach a sample inlet line leading from the room being monitored to the SAMPLE inlet fitting DRY AIR SOURCE Attach a gas line leading from the room being monitored to the DRY AIR inlet port This can be a separate line or as shown above Figure 2 17 in the same line with a T fitting EXHAUST O...

Страница 48: ...Zero Span IZS configurations 2 3 3 1 PNEUMATIC FLOW BASIC CONFIGURATION INSTRUMENT CHASSIS Flow Pressure Sensor PCA SAMPLE PRESSURE SENSOR O3 FLOW SENSOR Sample Gas Flow Control EXHAUST GAS OUTLET PUMP DRY AIR INLET O3 Scrubber ABSORPTION TUBE SAMPLE GAS INLET SPAN GAS INLET ZERO AIR INLET Measure Reference Valve Figure 2 18 T400 Pneumatic Diagram Basic Unit ...

Страница 49: ...igure 2 19 T400 Pneumatic Diagram with Zero Span ZS Option OPT50A Table 2 6 Zero Span Valve Operating States for Option 50A Mode Valve Condition SAMPLE Sample Cal Open to SAMPLE inlet Zero Span Open to ZERO AIR inlet ZERO CAL Sample Cal Open to ZERO SPAN valve Zero Span Open to ZERO AIR inlet SPAN CAL Sample Cal Open to ZERO SPAN valve Zero Span Open to SPAN GAS inlet The state of the Sample Cal v...

Страница 50: ... Figure 2 20 T400 Pneumatic Diagram with Internal Zero Span IZS Option OPT50G Table 2 7 Internal Zero Span Valve Operating States for Option 50G Mode Valve Condition SAMPLE Sample Cal Valve Open to SAMPLE inlet Ozone Generator OFF ZERO CAL Sample Cal Valve Open to Ozone Generator Ozone Generator OFF SPAN CAL Sample Cal Valve Open to Ozone Generator Ozone Generator ON at intensity level set by user...

Страница 51: ...check its functionality Section 2 3 4 3 and run an initial calibration Section 4 Section 2 4 introduces the menu system and Section 2 5 provides setup customization instructions 2 3 4 1 STARTUP Upon initial startup a sequence of status screens Figure 2 21 appear prior to the Home page Figure 2 22 Figure 2 21 Status Screens at Startup Upon any startup this instrument should warm up for approximatel...

Страница 52: ...itions or user configured Events Section 2 4 3 provides more detailed information about Alerts and Section 2 5 2 addresses Events Alerts can be viewed and cleared via either the Alerts menu or the Alerts shortcut Caution symbol bottom right corner of the screen Although these alerts can be cleared from the Active Alerts page a history of all alerts remains in the Utilities Alerts Log page Figure 2...

Страница 53: ...played configure the Dashboard through the Setup Dashboard menu to add them see Section 2 4 2 These functions are also useful tools for diagnosing problems information provided in Section 5 7 2 Figure 2 24 Sample Dashboard Page 2 3 4 4 INITIAL CALIBRATION Before operation begins the analyzer requires initial calibrations for the location in which it will perform any of the gas analyses Also any ti...

Страница 54: ...configured Events Section 2 5 2 and create customized triggers for data logging functions Section 2 5 1 Events Select parameters and define the conditions by which they are to be flagged and recorded in the Alerts log Section 2 4 3 when they are triggered Once configured Events can be used to trigger Datalogs Section 2 5 1 Note that some Events are predefined and are not editable Section 2 5 2 Das...

Страница 55: ...2 25 presents an orientation to the main display screen Figure 2 26 shows that pressing the gas name or its concentration value or a meter below displays a live plot of their respective readings Section 2 5 6 provides configuration instructions Figure 2 25 User Interface Orientation ...

Страница 56: ...54 Teledyne API Model T400 O3 Analyzer 083730400A DCN8130 Figure 2 26 Concentration and Stability Graph top and Meter Graph bottom ...

Страница 57: ...et by either factory defined conditions standard and not editable or user defined Events Section 2 5 2 The Active Alerts page shows the status of any active warning conditions or Events that have been triggered When Alerts are triggered a caution symbol appears in both the Alerts menu tab and in the bottom right corner of the software interface which serves as a shortcut to the Alerts page from an...

Страница 58: ...m the Active Alerts page either check individual boxes to choose specific Alerts or check the Select All box to choose all Alerts then press the Clear Selected button When all Alerts are cleared the Alerts menu tab no longer shows the caution symbol and a green LED replaces the caution symbol in the bottom right corner of the interface Figure 2 29 However Alerts can reappear if the conditions caus...

Страница 59: ...s Log of Active and Past Alerts and Events 2 4 4 CALIBRATION The Calibration menu is used for multipoint calibrations as well as calibrations for zero and span with valve options and for external calibration with valve options installed Calibration procedures are presented in Section 4 ...

Страница 60: ...des access to various pages that facilitate troubleshooting Analog Outputs Show the voltage signals for the functions selected and configured in the Setup Analog Outputs menu Section 2 5 8 Digital Inputs Show whether specific available features are turned ON or OFF for example whether or not Maintenance Mode input or Language selection can be controlled through the front panel or whether a zero or...

Страница 61: ...aded to other instruments of the same model Section 2 6 2 5 1 SETUP DATA LOGGING DATA ACQUISITION SYSTEM DAS The Datalogger can be configured to capture and store user defined data which then can be viewed in the Alerts page if elected as well as downloaded from the instrument to a USB flash drive or using NumaView Remote software for examination and analysis Figure 2 31 shows a new log Figure 2 3...

Страница 62: ...60 Teledyne API Model T400 O3 Analyzer 083730400A DCN8130 Figure 2 31 Datalog Configuration New Log Page Figure 2 32 Datalog Configuration Existing Log ...

Страница 63: ...400A DCN8130 Teledyne API Model T400 O3 Analyzer 61 Figure 2 33 Creating a New Data Log The parameters available in the list of Log Tags include the names of Events configured in the Events page Section 2 5 2 ...

Страница 64: ...TYPES PERIODIC The Periodic trigger is a timer based trigger that is used to log data at a specific time interval Periodic Trigger requires an interval that is set to number of minutes and a start time that is set to date and clock time Figure 2 34 Datalog Periodic Trigger Configuration ...

Страница 65: ...collected by the Datalogger from the instrument to a flash drive navigate to the Utilities USB Utilities DAS Download menu 1 Insert a flash drive into a front panel USB port and wait for the Status field to indicate that the drive has been detected available buttons will be enabled Figure 2 36 DAS Download Page 2 Select all or define a period from which to download the collected data 3 Press the D...

Страница 66: ...on on instrument functionality such as concentration alarms Some Events are standard and not editable while others are user configurable described here Existing Events are listed in the Events page Figure 2 37 under the Setup menu Figure 2 37 Events List Access the Events Configuration page either from the Active Alerts page Alerts Menu by pressing the configuration button or through the Home Setu...

Страница 67: ... is triggered it will still be recorded and can be viewed in the Utilities Alerts Log To use this option the Event must be enabled allows the choice of whether or not to keep an Event visible even if the conditions that triggered it were to correct themselves Latching requires that the user interact with the Active Alerts screen to manually clear the Alert and internal Event state Non latching all...

Страница 68: ...igure 2 39 Configured Event Sample 2 5 2 1 EDITING OR DELETING EVENTS Select an Event from the list Figure 2 37 and press the Edit button to view or edit the details Figure 2 39 or press the Delete button to delete the Event Figure 2 40 Edit or Delete an Event ...

Страница 69: ...lso be used to create customized triggers for data logging functions The name entered in the Name field of the Events Configuration page will appear in the list of Log Tags of the Datalog Configuration page The Data Logger is presented in Section 2 5 1 2 5 3 SETUP DASHBOARD Figure 2 41 Dashboard Display and Configuration ...

Страница 70: ... monitoring CEM where the quality of gas in a smoke stack is being tested and the sampling method used to remove the gas from the stack dilutes the gas Once the degree of dilution is known this feature allows the user to add an appropriate scaling factor to the analyzer s O3 concentration calculations so that the undiluted values for measurement range and concentration are shown on the instrument ...

Страница 71: ...the three meters at the bottom of the Home page navigate to the Homescreen configuration page through either the Setup Homescreen menu or from Home page using the configuration icon Figure 2 42 Figure 2 42 Homescreen Configuration An orientation to the Homescreen was presented in Section 2 4 1 including Figure 2 25 and Figure 2 26 ...

Страница 72: ... can also be mapped To map Digital Outputs to Signals select a pin in the Outputs list then make a selection from the Signals list and press the Map button if as needed change the polarity by pressing the Polarity button Save any changes by pressing the Apply button or discard the changes by pressing the Home or the back button a pop up provides a warning that the changes will be lost and will pro...

Страница 73: ...bration Type AUTO for group calibration Figure 2 45 of the analog outputs cannot be selected when Current is selected for the Range MANUAL for individual calibration Figure 2 46 of analog outputs where manual adjustments can be made the only calibration type allowed when Current is selected for the Range See Sections 2 5 8 1 and 2 5 8 2 Range assign a voltage or select Current refer to Table 2 11 ...

Страница 74: ...ts see Section 2 5 8 1 for voltage and Section 2 5 8 2 for current RANGE1 RANGE SPAN MINIMUM OUTPUT MAXIMUM OUTPUT 100mV 0 100 mVDC 5 mVDC 105 mVDC 1V 0 1 VDC 0 05 VDC 1 05 VDC 5V 0 5 VDC 0 25 VDC 5 25 VDC 10V 0 10 VDC 0 5 VDC 10 5 VDC Current2 0 20 mA 0 mA 20 mA 1 Each range is usable from 5 to 5 of the rated span 2 While these are the physical limits of the current loop modules typical applicati...

Страница 75: ...ield of the Analog Outputs Calibration screen Figure 2 46 Refer to Table 2 12 for voltage tolerances V DC Gnd Recording Device V IN V IN ANALYZER V OUT V OUT Volt Meter Figure 2 47 Setup for Checking Calibrating DCV Analog Output Signal Levels Table 2 12 Voltage Tolerances FULL SCALE ZERO TOLERANCE SPAN VOLTAGE SPAN TOLERANCE MINIMUM ADJUSTMENT 1 count 0 1 VDC 0 0005V 90 mV 0 001V 0 02 mV 1 VDC 0 ...

Страница 76: ...exact amount by which the current signal is changed per D to A count varies from output to output and instrument to instrument you will need to measure the change in the signal levels with a separate current meter placed in series with the output circuit See Figure 2 4 for pin assignments and diagram of the analog output connector mADC IN OUT Recording Device I IN I IN ANALYZER I OUT I OUT Current...

Страница 77: ... DESCRIPTION Product Info View Model Part and Serial Numbers and Package and Driver Versions and options information System Info View Windows and RAM information Network Settings View the network settings configurable through the Setup Comm Network Settings menu Date Time Settings Adjust date hour and minutes select a time zone and set the system clock to automatically adjust for Daylight Savings ...

Страница 78: ... that COM port Modem Connection Select either a modem connection or a direct cable connection Modem Init String Input an initialization string to enable the modem to communicate Multidrop Enable disable multidrop mode for multi instrument configuration on a single communications channel Multidrop requires a unique ID for each instrument in the chain Setup Vars Instrument ID Parity Select odd or ev...

Страница 79: ...e Port 1 number for defining the terminal control port by which terminal emulation software addresses the instrument such as Internet or NumaView Remote software and enabling or disabling security on this port 2 5 10 3 TCP PORT2 TCP Port2 is configured with the port number for MODBUS 2 5 10 4 TCP PORT3 TCP Port3 is configured with the port number for Hessen ...

Страница 80: ...s A string of four packets of 1 to 3 numbers each e g 192 168 76 55 is the internet protocol address of the instrument itself Subnet Mask A string of four packets of 1 to 3 numbers each e g 255 255 252 0 number that masks an IP address and divides the IP address into network address and host address and identifies the LAN to which the device is connected All addressable devices and computers on a ...

Страница 81: ...ties USB Utilities General page 2 Insert a flash drive into either of the two front panel USB ports 3 When the Status field indicates that the USB drive has been detected press the Download Configuration from Instrument Start button 4 When the Status field indicates that the download is complete remove the flash drive 5 In the target instrument go to the Home Utilities USB Utilities General page 6...

Страница 82: ...uipment DCE Basic terminals always fall into the DTE category whereas modems are always considered DCE devices The difference between the two is the pin assignment of the Data Receive and Data Transmit functions DTE devices receive data on pin 2 and transmit data on pin 3 DCE devices receive data on pin 3 and transmit data on pin 2 To allow the analyzer to be used with terminals DTE modems DCE and...

Страница 83: ...formation on CAS systems 3 2 1 1 SERIAL COMMUNICATION RS 485 OPTION The COM2 port of the instrument s rear panel is set up for RS 232 communication but can be reconfigured for RS 485 communication Contact Technical Support for reconfiguration unless this option was elected at the time of purchase then the rear panel was preconfigured at the factory 3 3 ETHERNET When using the Ethernet interface th...

Страница 84: ...ly a null modem adapter or cable 3 4 1 1 MODBUS COM PORT CONFIGURATION MODBUS communications can be configured for transmission over Ethernet or serial COM port through the Setup Comm menu Make the appropriate cable connections Ethernet or COM port between the instrument and a PC Check the instrument s Modbus Units selection in the Setup Vars menu and edit if needed Ethernet MODBUS is available on...

Страница 85: ...are Press the Accept button to apply the settings Figure 3 2 shows an example for MODBUS RTU Figure 3 2 MODBUS via Serial Communication example Important When more than one analyzer is connected to the network create a unique identification number for each in the Setup Vars Instrument ID menu Next for the settings to take effect power off the analyzer wait 5 seconds and power it on again ...

Страница 86: ...ledyne API s application is completely compatible with the protocol itself it may be different from implementations by other companies 3 4 2 1 HESSEN COM PORT CONFIGURATION Configure the COM1 COM2 port for Hessen protocol through the Setup Comm COM1 COM2 menu select COM1 COM2 Protocol and press Edit to select HESSEN then press Accept Ensure that the communication parameters of the host computer ar...

Страница 87: ...t are encoded as the traditional command format Style and format of responses depend on exact coding of the initiating command BCC Responses from the instrument are always delimited with STX at the beginning of the response ETX at the end of the response followed by a 2 digit Block Check Code checksum regardless of the command encoding TEXT Responses from the instrument are always delimited with C...

Страница 88: ...AGS In MANUAL Calibration Mode 0200 In ZERO Calibration Mode 0400 In SPAN Calibration Mode 08002 In LO SPAN Calibration Mode 08002 UNITS OF MEASURE FLAGS UGM 0000 MGM 2000 PPB 4000 PPM 6000 Spare Unused Bits 0080 0100 1000 8000 UNASSIGNED FLAGS 0000 LAMP STABIL WARN LAMP DRIVER WARN O3 SCRUB TEMP WARN3 ANALOG CAL WARNING BOX TEMP WARNING CANNOT DYN ZERO SYSTEM RESET CANNOT DYN SPAN RELAY BOARD WAR...

Страница 89: ...RATION INFORMATION Note A start up period of 4 5 hours is recommended prior to calibrating the analyzer 4 1 1 CALIBRATION REQUIREMENTS Calibration equipment and supplies include but are not limited to the following Zero air source Span gas source Gas lines All Gas lines should be PTFE Teflon or FEP Optionally a recording device such as a strip chart recorder and or data logger For electronic docum...

Страница 90: ...cts interference from all of these with the exception of mercury vapor If the Model T400 is installed in an environment where the presence of mercury vapor is suspected steps should be taken to remove the mercury vapor from the sample gas before it enters the analyzer For a more detailed discussion of this topic see Section 6 1 4 4 1 5 DILUTION RATIO OPTION SOFTWARE SET UP If your application invo...

Страница 91: ... Setup Analog Outputs Analog Output Signal Out Gas Concentration Range Mode SNGL Setup Vars Range Mode Note Tips for Setting the Expected Span Gas Concentration When setting expected concentration values consider impurities in your span gas source The expected span gas concentration should be 80 of the reporting range of the instrument To calibrate or to perform a calibration check for basic confi...

Страница 92: ...ND ACTUAL CALIBRATION 1 While still in the Calibration M P menu input Span gas through the Sample port and press the Start button 2 Either check or calibrate as follows CHECK ONLY ACTUAL CALIBRATION a Wait to reach stability then press Stop b Record the reading s a Press the Set Span Target button and enter the span gas concentration b Verify the concentration reading is the same as the span gas c...

Страница 93: ...IBRATION AND CHECK PROCEDURES WITH VALVE OPTIONS INSTALLED Figure 4 2 Zero and Span Calibration Screens Follow the instructions in Section 4 2 1 except instead of the M P menu go to the Calibration Zero menu for Zero cal and to the Calibration Span menu for O3 Span cal ...

Страница 94: ...d selection box is checked the analyzer will not recalibrate the analyzer UNTIL the contact is opened At this point the new calibration values will be recorded before the instrument returns to SAMPLE mode If the AutoCal attribute Calibrate is disabled selection box is unchecked the instrument will return to SAMPLE mode leaving the instrument s internal calibration variables unchanged 4 3 AUTOMATIC...

Страница 95: ...ses a Zero check when the Enabled box is also and the Calibrate box is unchecked disables Zero calibration and check Low causes the sequence to perform a Low Span calibration when both the Calibrate and Enabled boxes are also causes a Low Span check when the Enabled box is also and the Calibrate box is unchecked disables Low Span calibration and check High causes the sequence to perform a High Spa...

Страница 96: ...r the pop up window and toggle between the Time Hour Minutes and the Date Year Month Day attributes to edit as needed Interval Number of minutes to skip between each Sequence execution Click the field to input the number of minutes in the pop up window Duration Number of minutes that each Sequence execution is to run Click the field to input the number of minutes in the pop up window Important IMP...

Страница 97: ...nder the Utilities Diagnostics menu 4 5 1 PRESSURE CALIBRATION A sensor at the exit of the sample chamber continuously measures the pressure of the sample gas The data for Sample Pressure are used to compensate the final gas concentration calculation for changes in atmospheric pressure and are stored in the CPU s memory IMPORTANT IMPACT ON READINGS OR DATA This calibration must be performed when t...

Страница 98: ...rence and Equivalent Methods is published in the U S Federal Register http www3 epa gov ttn amtic criteria html Pay strict attention to the built in warning features periodic inspection regular zero span checks regular test parameter evaluation for predictive diagnostics and data analysis and routine maintenance Any instrument s supplying the zero air and span calibration gasses used must themselv...

Страница 99: ...hese procedures can vary depending on the operating environment Additionally in some cases there are local regulations or standards that also need to be considered WARNING Electrical Shock Hazard Disconnect power before performing any of the following operations that require entry into the interior of the analyzer CAUTION Qualified Personnel These maintenance procedures must be performed by qualif...

Страница 100: ...nce or Repair No 5 7 2 Pump Diaphragm Replace As Needed Yes O3 Reference Scrubber Replace Every 2 5 years as needed Yes 5 7 15 2 IZS Zero Air Scrubber Replace Annually No 5 7 15 3 Desiccant Option 56 Replace Regularly as needed No 5 6 4 Absorption Tube Inspect Clean Annually As Needed Yes 5 6 7 Flow Check Perform Flow Check Every 6 Months No 5 6 6 Leak Check Perform Leak Check Annually or after an...

Страница 101: ...99 Teledyne API Model T400 O3 Analyzer 083730400A DCN8130 This page intentionally left blank ...

Страница 102: ...ument sample system Malfunctioning UV lamp Bench O3 REF Sample Decreasing Lamp Aging Mercury contamination O3 DRIVE CalS Increasing Aging IZS UV lamp only if reference detector option is installed PRESSURE Sample Increasing 1 Pneumatic Leak between sample inlet and optical bench Decreasing 1 Dirty particulate filter Pneumatic obstruction between sample inlet and optical bench Obstruction in sampli...

Страница 103: ...n also be set to generate periodically and sent to a Web services cloud where it is available for viewing by Teledyne API technical support personnel Set this function with two Vars Setup Vars Upload Report to Cloud set to True Setup Vars Report Upload Interval edit the number of hours between report uploads 5 4 SOFTWARE FIRMWARE UPDATES There are two ways to check for and acquire updates either r...

Страница 104: ... been detected 4 In the Update Firmware field press the Check button for the instrument to determine whether the firmware on the flash drive is more recent than what is currently installed Once it s been determined that the firmware is new the Install button will be enabled if the firmware version on the flash drive is the same as or older than the current firmware of the instrument the Install bu...

Страница 105: ...ay screen 4 Note that a timer function is enabled allowing only 15 seconds to start the calibration process If the timer expires the instrument will exit the calibration screen and return to normal operation 5 Click the very center of the crosshair 6 When a new crosshair appears in the upper left corner of the screen carefully and accurately click and hold the very center of that crosshair until i...

Страница 106: ...urn to Home page then back to the Date Time Settings page and check that the selected Time Zone is now highlighted 4 Without making any other changes power OFF the instrument and power ON again 5 Once restarted return to the Date Time Settings page where the newly selected Time Zone should be highlighted If not it means that not enough time had passed for the instrument to accept the change before...

Страница 107: ...are hands rather use PTFE coated tweezers or similar handling to avoid contamination of the sample filter assembly To change the filter 1 Turn OFF the analyzer to prevent drawing debris into the instrument 2 Open the T400 s hinged front panel and unscrew the knurled retaining ring on the filter assembly Figure 5 6 Replacing the Particulate Filter 3 Carefully remove the retaining ring PTFE o ring g...

Страница 108: ...orm a flow check Section 5 6 6 and a leak check Section 5 6 5 after rebuilding the Sample Pump 5 6 3 REPLACING THE IZS OPTION ZERO AIR SCRUBBER 1 Power OFF the analyzer 2 Remove the cover from the analyzer 3 Disconnect the white nylon 1 8 fitting from the Zero Air Scrubber See Figure 5 7 4 Remove the old scrubber by disconnecting the 9 16 fitting at the top of the O3 generator tower then removing ...

Страница 109: ... entire scrubber turns pink Replacement interval will depend on how often the IZS is used as well as ambient levels of humidity in your application 5 6 5 PERFORMING LEAK CHECKS Leaks are the most common cause of analyzer malfunction Section 5 6 5 1 presents a simple leak check procedure Section 5 6 5 2 details a more thorough procedure 5 6 5 1 VACUUM LEAK CHECK AND PUMP CHECK This method is easy a...

Страница 110: ...on fitting in place of the pump The analyzer cannot be leak checked with the pump in line due to internal leakage that normally occurs in the pump 5 Pressurize the instrument with the leak checker allowing enough time to fully pressurize the instrument through the critical flow orifice Check each fitting with soap bubble solution looking for bubbles Once the fittings have been wetted with soap sol...

Страница 111: ... the Flow Control Assembly 4 Once an accurate measurement has been recorded by the method described above adjust the analyzer s internal flow sensors See Section 4 5 2 5 6 7 MAINTAINING THE PHOTOMETER ABSORPTION TUBE NOTE This procedure should never be needed as long as the photometer is supplied with clean dry particulate free zero air only However this procedure is included for the rare event th...

Страница 112: ...inst the stop inside the detector manifold 15 Return the cover to the analyzer and power up the analyzer 16 Perform an AUTO LEAK CHECK on the instrument 5 6 8 ADJUSTING THE OPTICAL BENCH UV LAMP This procedure details the steps for adjustment of the UV source lamp in the optical bench assembly This procedure should be done whenever the test function O3 REF value drops below 3000 mV CAUTION UV Radi...

Страница 113: ...UV protection while performing the adjustments 1 Power off the analyzer 2 Remove the cover from the analyzer 3 Locate the UV lamp at the front of the optical bench assembly see Figure 2 3 4 Unplug the lamp cable from the power supply connector on the side of the optical bench 5 Slightly loosen do not remove the UV lamp setscrew and pull the lamp from its housing 6 Install a new lamp in the housing...

Страница 114: ...te The lamp should be disposed of in accordance with local regulations regarding waste containing mercury 1 Power off the analyzer 2 Remove the cover from the analyzer 3 Locate the O3 generator see Figure 2 3 Figure 5 9 O3 Generator UV Lamp 4 Unscrew the UV lamp holder and gently pull out the old lamp 5 Inspect the o ring beneath the lamp holder and replace if damaged 6 Install the new lamp in O3 ...

Страница 115: ...tor Adjustment Pot 9 Navigate to Utilities Diagnostics Analog Inputs O3 Gen Ref 10 Using an insulated pot adjustment tool turn the O3 Generator Adjustment Pot Figure 5 10 until the value of O3 Gen Ref is 2500 0 mV 100 mV 11 Finish screwing in the UV lamp holder so that it is snug but not excessively tight 12 Replace the analyzer s cover 13 Perform a leak check Section 5 6 5 14 Perform an ozone gen...

Страница 116: ...rms diagnostic tests and provides the ability to evaluate its key operating parameters without disturbing monitoring operations A systematic approach to troubleshooting will generally consist of the following five steps some are listed in 1 Note Alerts and take corrective action as necessary 2 Examine the values of all parameter functions and compare them to factory values Note any major deviation...

Страница 117: ...er Entire Relay Board I2 C Bus Hot Lamp BOX TEMP WARNING Box Temp is 5 C or 48 C Box Temperature typically runs 7 C warmer than ambient temperature Poor blocked ventilation to the analyzer Stopped Exhaust Fan Ambient Temperature outside of specified range CANNOT DYN SPAN Dynamic Span operation failed Measured concentration value is too high or low Concentration Slope value to high or too low CANNO...

Страница 118: ... Relay controlling the O3 generator heater Entire Relay Board I2 C Bus SYSTEM RESET The computer has rebooted This message occurs at power on If it is confirmed that power has not been interrupted Failed 5 VDC power Fatal Error caused software to restart Loose connector wiring A failure of the analyzer s CPU or Motherboard can result in any or all of the preceding messages 5 7 2 FAULT DIAGNOSIS WI...

Страница 119: ... lamp power supply Failed I2 C Bus If the O3 Ref value changes by more than 10mV between zero and span gas Defective leaking switching valve PRES See Table 5 3 for SAMPLE PRES WARN SAMPLE FL Check for gas flow problems see Section 5 7 5 SAMP TEMP SAMPLE TEMP should be close to BENCH TEMP Temperatures outside of the specified range or oscillating temperatures are cause for concern PHOTO LAMP Bench ...

Страница 120: ...hese signals on the operation of the analyzer Use the Utilities Diagnostics menu to view the raw voltage of an input signal or the Setup menu to control the state of an output voltage or control signal 5 7 4 STATUS LEDS Several color coded light emitting diodes LEDs are located inside the instrument to assist in determining if the analyzer s CPU I2 C bus and relay board are functioning properly 5 ...

Страница 121: ...r their respective components Table 5 5 Relay PCA Watchdog LED Failure Indication LED FUNCTION FAULT STATUS INDICATED FAILURE S D1 Red I2 C bus Health Watchdog Circuit Continuously ON or Continuously OFF Failed Halted CPU Faulty Motherboard Valve Driver board or Relay PCA Faulty connectors wiring between Motherboard Valve Driver board or Relay PCA Failed Faulty 5 VDC Power Supply PS1 5 7 4 3 O3 OP...

Страница 122: ...tes If not Failed Valve Failed Relay Drive IC on Relay PCA Failed Relay PCA Faulty 12 VDC Supply PS2 Faulty connectors wiring D8 Green Measure Ref Valve PHOTO_REF_VALVE N A D9 Green Sample Cal Gas Valve3 CAL_VALVE N A D15 Green Photometer UV Lamp Heater PHOTO_LAMP_HEATER PHOTO_LAMP Voltage displayed should change If not Failed Heater Faulty Temperature Sensor Failed AC Relay Faulty connectors wiri...

Страница 123: ...ront panel display or the SAMPLE FLOW test function reports a zero or very low flow rate Confirm that the sample pump is operating turning If not use an AC voltmeter to make sure that power is being supplied to the pump if no power is present at the electrical leads of the pump 1 If AC power is being supplied to the pump but it is not turning replace the pump 2 If the pump is operating but the uni...

Страница 124: ...mediately after the front panel power switch is turned ON With the Sample Inlet plugged the Pressure reading should be about 10 in Hg for a pump that is in good condition The pump needs rebuilding if the reading is above 10 in Hg If the Sample Flow reading is greater than 10 cm3 min there is a leak in the pneumatic lines 5 7 6 CALIBRATION PROBLEMS 5 7 6 1 MISCALIBRATED There are several symptoms t...

Страница 125: ...raceable photometer Check for leaks in the pneumatic systems as described in Section 5 6 3 Make sure that the expected span gas concentration entered into the instrument during calibration is the correct span gas concentration and not too different from expected span value Check to make sure that there is no ambient air or zero air leaking into span gas line 5 7 6 4 INABILITY TO ZERO NO ZERO BUTTO...

Страница 126: ...is no other failure with the Relay Board the FET Driver on the Relay Board may have failed Using the PHOTO_LAMP_HEATER parameter under the SIGNAL I O function of the DIAG menu as described above turn on and off the UV Lamp Heater D15 on the relay board should illuminate as the heater is turned on Check the DC voltage present between pins 1 and 2 on J13 of the Relay Board If the FET Driver has fail...

Страница 127: ...stem is the cause of the problem being investigated WARNING ELECTRICAL SHOCK HAZARD Should the AC power circuit breaker trip investigate and correct the condition causing this situation before turning the analyzer back on 5 7 9 1 AC MAINS CONFIGURATION The T400 analyzer s electronic systems will operate with any of the specified power regimes As long as system is connected to 100 120 VAC or 220 24...

Страница 128: ... Green 15V 4 Blue 15V 5 Yellow 12R 6 Purple 12V 7 Orange A voltmeter should be used to verify that the DC voltages are correct per the values in the table below and an oscilloscope in AC mode with band limiting turned on can be used to evaluate if the supplies are producing excessive noise 100 mV p p Table 5 8 DC Power Supply Acceptable Levels POWER SUPPLY ASSY VOLTAG E CHECK RELAY BOARD TEST POIN...

Страница 129: ...screen should light and show the splash screen with logo and other indications of its state as the CPU goes through its initialization process 5 7 9 6 RELAY BOARD The relay board PCA P N 04135 can be most easily checked by observing the condition of the its status LEDs on the relay board as described in Section 5 7 4 2 and the associated output when toggled on and off through signal I O function i...

Страница 130: ...voltage across TP4 and TP1 The expected value for this signal should be Expected mVDC 4660mvDC 250mvDC x Pressure 30 0In Hg A 10 rdg EXAMPLE If the measured pressure is 20 In Hg A the expected voltage level between TP4 and TP1 would be between 2870 mVDC and 3510 mVDC EXAMPLE If the measured pressure is 25 In Hg A the expected voltage level between TP4 and TP1 would be between 3533 mVDC and 4318 mV...

Страница 131: ...th the voltage displayed through the signal I O function If the wiring is intact but there is a large difference between the measured and displayed voltage 10 mV then the motherboard is bad See also Section 5 7 3 5 7 10 2 STATUS OUTPUTS 1 2 3 8 4 D 5 6 7 V DC Gnd 1000 Ω SYSTEM_OK Figure 5 13 Typical Set Up of Status Output Test To test the Status outputs 1 Connect a jumper between the D pin and th...

Страница 132: ...e 44 pin device on the lower right hand side of the board If this is true removing U57 from its socket will allow the instrument to start up but the measurements will be invalid If the analyzer stops during initialization the front panel display shows a fault or warning message it is likely that the DOM the firmware or the configuration and data files have been corrupted 5 7 12 RS 232 COMMUNICATIO...

Страница 133: ...n the M R valve or a bad O3 reference scrubber Refer to Section 5 7 15 2 for replacement instructions Press the EXIT button to interrupt the span point calibration process DO NOT PRESS the ENTR button 5 7 13 2 CHECKING THE PHOTOMETER UV LAMP POWER SUPPLY WARNING ELECTRICAL SHOCK HAZARD Hazardous voltage present use caution CAUTION UV RADIATION RISK Do not look at the UV lamp while the unit is oper...

Страница 134: ...cal to that listed in Section 5 7 13 above 5 7 15 SERVICE PROCEDURES This contains procedures that might need to be performed on rare occasions when a major component of the analyzer requires repair or replacement 5 7 15 1 REPAIRING SAMPLE FLOW CONTROL ASSEMBLY The critical flow orifice is housed in the flow control assembly Teledyne API P N 001760400 located on the top of the optical bench A sint...

Страница 135: ...See Error Reference source not found 4 Disconnect the top 1 8 brass tube fitting from the scrubber 5 Carefully remove the scrubber from the retaining clip 6 Remove the bottom 1 8 brass tube fitting from the scrubber 7 Perform the above steps in reverse to install the new scrubber 8 Run the instrument for at least 24 hours with the new scrubber installed and recalibrate the instrument 5 7 15 3 REPL...

Страница 136: ...ower off instrument and remove top 2 Remove bench Phillips head screws and remove bench cover 3 Unplug driver board communications power and lamp power supply connectors 4 Pop out retaining clip that holds transistor and thermal pad in place 5 With a blunt tool that will not damage any surface pry up driver board assembly from swage fittings 6 Put new driver board assembly lightly in place 7 Inser...

Страница 137: ...lyzer 135 10 Reinsert driver board communications power and lamp power supply connectors 11 Return bench cover and screw into place 12 Return cover to instrument 13 Power on and check readings for accuracy Figure 5 16 UV Lamp Driver Board Replacement ...

Страница 138: ...ory is reset the A D converter must be re calibrated and all information collected in Step 1 below must be re entered before the instrument will function correctly Also zero and span calibration should be performed 1 Document all analyzer parameters that may have been changed such as range auto cal analog output serial port and other settings before replacing the DOM 2 Turn off power to the instru...

Страница 139: ...pan check What do I do if the concentration displayed does not match the value recorded or displayed on my data logger even if both instruments are calibrated This most commonly occurs when an independent metering device is used besides the data logger recorder to determine gas concentration levels while calibrating the analyzer These disagreements result from the analyzer the metering device and ...

Страница 140: ...ained from Teledyne API Technical Support 9970 Carroll Canyon Road San Diego California 92131 1106 USA Toll free Phone 1 800 324 5190 Phone 1 858 657 9800 Fax 1 858 657 9816 Email api techsupport teledyne com Website http www teledyne api com Before contacting Teledyne API Tech Support please fill out the problem report form available online for electronic submission at http www teledyne api com ...

Страница 141: ... is performed in software and does not require physical adjustments to the instrument During calibration the microprocessor measures the current state of the UV Sensor output and various other physical parameters of the instrument and stores them in memory The microprocessor uses these calibration values the UV absorption measurements made on the Sample Gas in the absorption tube along with data r...

Страница 142: ... C is the concentration of the absorbing gas in the case of the T400 Ozone O3 α is the absorption coefficient that tells how well O3 absorbs light at the specific wavelength of interest To solve this equation for C the concentration of the absorbing Gas in this case O3 the application of a little algebra is required to rearrange the equation as follows Equation 6 2 C X ln I0 I 1 αL at STP Unfortun...

Страница 143: ... Because ozone is a very efficient absorber of UV radiation the absorption path length required to create a measurable decrease in UV intensity is short enough approximately 42 cm that the light beam is only required to make one pass through the absorption tube Therefore no complex mirror system is needed to lengthen the effective path by bouncing the beam back and forth Finally the UV then passes...

Страница 144: ...RPTION TUBE SAMPLE GAS INLET SPAN GAS INLET ZERO AIR INLET Measure Reference Valve Measure Path Reference Path Figure 6 2 Reference Measurement Gas Cycle The Measurement Reference Cycle encompasses the following states and durations 0 seconds Measure Reference Valve Opens to the Measure Path 0 2 seconds Wait Period Ensures that the Absorption tube has been adequately flushed of any previously pres...

Страница 145: ...nts that may cause problems for the Model T400 are aromatic hydrocarbons and mercury vapor 6 1 4 1 AROMATIC HYDROCARBONS While the instrument effectively rejects interference from meta xylene it should be noted that there are a very large number of volatile aromatic hydrocarbons that could potentially interfere with ozone detection This is particularly true of hydrocarbons with higher molecular we...

Страница 146: ...igh enough to be hazardous maintaining a negative gas pressure relative to ambient means that should a minor leak occur no sample gas would be pumped into the atmosphere surrounding analyzer INSTRUMENT CHASSIS Flow Pressure Sensor PCA SAMPLE PRESSURE SENSOR O3 FLOW SENSOR Sample Gas Flow Control EXHAUST GAS OUTLET Particulate Filter PUMP DRY AIR INLET O3 Scrubber ABSORPTION TUBE SAMPLE GAS INLET S...

Страница 147: ...gas flow rate is unaffected by any fluctuations surges or changes in downstream pressure because such variations only travel at the speed of sound themselves and are therefore cancelled out by the sonic shockwave at the downstream exit of the critical flow orifice Figure 6 4 Flow Control Assembly Critical Flow Orifice The actual flow rate of gas through the orifice volume of gas per unit of time d...

Страница 148: ...board is directly mounted to the inside rear panel and collects data performs signal conditioning duties and routes incoming and outgoing signals between the CPU and the analyzer s other major components An analog signal is generated by an optical bench that includes the Photometer UV Lamp the Absorption Tube assembly and the UV Detector and Preamp This signal constantly cycles between a voltage l...

Страница 149: ...or Lamp Supply Thermistor Interface Box Temperature Gas Pressure Sensor Gas Flow Sensor UV Lamp A D Converter SPAN Valve IZS Sample Cal Valve Optional ZERO Valve RELAY PCA I2 C Status LED Photometer UV Lamp Temperature IZS Option O3 Generator s UV Lamp Temperature Photometer Sample Gas Temperature Photometer Lamp Power Supply Photometer Detector Preamp Absorption tube Photometer Detector Measure R...

Страница 150: ...IDE flash drive with a storage capacity up to 128 MB It is used to store the computer s operating system the Teledyne API firmware and most of the operational data generated by the analyzer s internal data acquisition system DAS 6 3 1 2 FLASH CHIP This non volatile embedded flash chip includes 2MB of storage for calibration data as well as a backup of the analyzer configuration Storing these key d...

Страница 151: ...ith a 5V full scale The converter includes a 1 over and under range This allows signals from 0 05V to 5 05V to be fully converted For calibration purposes two reference voltages are supplied to the A D converter Reference Ground and 4 096 VDC During calibration the device measures these two voltages outputs their digital equivalent to the CPU The CPU uses these values to compute the converter s of...

Страница 152: ...A2 A3 and A4 The type of data and electronic performance of these outputs are configurable by the user see Section 2 5 8 OUTPUT LOOP BACK The analog outputs are connected back to the A D converter through a loop back circuit This permits the voltage outputs to be calibrated by the CPU without need for any additional tools or fixtures 6 3 2 5 EXTERNAL DIGITAL I O This External Digital I O performs ...

Страница 153: ...BOARD By actuating various switches and relays located on the Relay Board the CPU controls the status of other key components The relay board receives instructions in the form of digital signals over the I2 C bus interprets these digital instructions and activates its various switches and relays appropriately Figure 6 7 Relay Board Layout The most commonly used version of the Relay PCA installed i...

Страница 154: ...elay PCA includes a solid state AC relay see Figure 6 7 A retainer plate is installed over the relays to keep them securely seated in their sockets Figure 6 9 Relay Board with AC Relay Retainer in Place 6 3 3 1 STATUS LEDS The LEDs located on the analyzer s relay board show the current status on the various control functions performed by the relay board They are listed on Table 6 1 ...

Страница 155: ... Only present when the Z S valve option is installed 2 Only present when either the Z S valve option or the IZS valve option is present Figure 6 10 Relay Board Status LED Locations 6 3 3 2 I2 C WATCH DOG CIRCUITRY Special circuitry on the relay board monitors the activity on the I2 C bus and drives LED D1 Should this LED ever stay ON or OFF for 30 seconds the watch dog circuit will automatically s...

Страница 156: ... CONTROL The valve that switches the gas stream to and from the analyzer s O3 scrubber during the measure reference cycle is operated by an electronic switch located on the relay PCA This switch under CPU control supplies the 12VDC needed to activate each valve s solenoid Similar valves also controlled by the relay PCA are included in the following optional components On instruments with the ZERO ...

Страница 157: ...e relay PCA TC2 J16 is currently not used Table 6 2 Thermocouple Configuration Jumper JP5 Pin Outs TC INPUT JUMPER PAIR DESCRIPTION FUNCTION TC1 1 11 Gain Selector Selects preamp gain factor for J or K TC OUT K TC gain factor IN J TC gain factor 2 12 Output Scale Selector Selects preamp gain factor for J or K TC OUT 10 mV C IN 5 mV C 3 13 Type J Compensation When present sets Cold Junction Compens...

Страница 158: ... second supply provides 5 VDC and 15 VDC for logic and analog circuitry as well as the power supplies for the Photometer and IZS UV Lamps All AC and DC voltages are distributed via the Relay PCA SENSOR SUITES LOGIC DEVICES e g CPU and its peripheral devices I2 C bus MotherBoard etc ON OFF SWITCH PS 2 12 VDC OPTION VALVES IZS Sample Cal Zero Span MEASURE REFERENCE VALVES COOLING FAN S PUMP PS 1 ANA...

Страница 159: ...nt panel display Internally the status LEDs located on the Relay PCA Motherboard and CPU should turn on as soon as the power is supplied However some of the analyzer s non digital components such as the pump and the AC powered heater for the optional metal wool scrubber OPT 68 must be properly configured for the type of power being supplied to the instrument Configuration of the power circuits is ...

Страница 160: ...to 220 240VAC power line 3 to 8 50 HZ1 BLUE Connects pump pins 3 and 4 together 1 to 6 Connects pump pin 1 to 220 240VAC power line 3 to 8 1 A jumper between pins 5 and 10 may be present on the jumper plug assembly but is not functional on the T400 Figure 6 14 Pump AC Power Jumpers JP7 6 3 5 2 AC CONFIGURATION HEATERS FOR OPTION PACKAGES JP6 The optional metal wool scrubber OPT 68 includes an AC h...

Страница 161: ...amp A thermistor and DC heater attached to the UV lamp to maintain the lamp at an optimum operating temperature 42 cm long quartz absorption tube A thermistor attached to the quartz tube for measuring sample gas temperature Gas inlet and outlet mounting blocks that route sample gas into and out of the photometer The vacuum diode UV detector that converts UV light to a DC current A preamplifier ass...

Страница 162: ...as Thermistor UV Lamp UV Lamp Thermistor UV Lamp Heater Behind Thermistor Figure 6 16 O3 Photometer Layout Top Cover Removed 6 3 7 FRONT PANEL TOUCHSCREEN DISPLAY INTERFACE Users can input data and receive information directly through the front panel touchscreen display The LCD display is controlled directly by the CPU board The touchscreen is interfaced to the CPU by means of a touchscreen contro...

Страница 163: ... touchscreen For driving the display it provides connection between the CPU video controller and the LCD display module This PCA also contains power supply circuitry for the LCD display module a USB hub that is used for communications with the touchscreen controller and the two front panel USB device ports the circuitry for powering the display backlight 6 2 SOFTWARE OPERATION The instrument s cor...

Страница 164: ...nstant concentration the software by default computes an average of the last 32 samples long or approximately 96 seconds This provides the calculation portion of the software with smooth stable readings If a rapid change in concentration is detected the filter length is changed to average the last 6 samples short approximately 18 seconds of data to allow the analyzer to respond more quickly If nec...

Страница 165: ...SLOPE AND OFFSET Calibration of the analyzer is performed exclusively in software During instrument calibration see Section 4 the user enters expected values for zero and span via the front panel controls and commands the instrument to make readings of calibrated sample gases for both levels The readings taken are adjusted linearized and compared to the expected values With this information the so...

Страница 166: ...opane CH4 methane H2O water vapor HC general abbreviation for hydrocarbon HNO3 nitric acid H2S hydrogen sulfide NO nitric oxide NO2 nitrogen dioxide NOX nitrogen oxides here defined as the sum of NO and NO2 NOy nitrogen oxides often called odd nitrogen the sum of NOX plus other compounds such as HNO3 definitions vary widely and may include nitrate NO3 PAN N2O and other compounds as well NH3 ammoni...

Страница 167: ...ay LED Light Emitting Diode LPM Liters Per Minute MFC Mass Flow Controller M R Measure Reference MOLAR MASS the mass expressed in grams of 1 mole of a specific substance Conversely one mole is the amount of the substance needed for the molar mass to be the same number in grams as the atomic mass of that substance EXAMPLE The atomic weight of Carbon is 12 therefore the molar mass of Carbon is 12 gr...

Страница 168: ...ple devices at a data rate faster than RS 232 with a much longer distance between the host and the furthest device SAROAD Storage and Retrieval of Aerometric Data SLAMS State and Local Air Monitoring Network Plan SLPM Standard Liters Per Minute of a gas at standard temperature and pressure STP Standard Temperature and Pressure TCP IP Transfer Control Protocol Internet Protocol the standard communi...

Страница 169: ...ssignments 30 Control InputS Electrical Connections 30 CPU 33 115 118 119 125 130 141 146 148 149 150 151 153 154 157 Analog to Digital Converter 149 159 Critical Flow Orifice 132 144 145 Current Loop Outputs 26 27 74 D DAS SYSTEM 89 100 115 139 Parameters STABIL 86 115 data acquisition See DAS System DC Power 29 30 Default Settings COMM Ports 33 Hessen Protocol 85 86 Diagnostic Menu DIAG SIGNAL I...

Страница 170: ...io 143 Measure Reference Valve 142 Measurement Reference Cycle 142 Menu Buttons ENTR 131 EXIT 131 Metal Wool Scrubber 120 152 153 158 AC Power 158 159 Troubleshooting 123 Motherboard 74 115 119 125 146 157 MR Ratio 100 Multidrop 34 36 84 O O3 GEN TEMP WARN 116 O3 Generator IZS 112 113 117 120 124 134 153 O3 MEAS 117 O3 REF 131 O3 SCRUB TEMP WARN 86 O3 Scrubber 98 143 O3_GEN_HEATER 120 125 O3_SCRUB...

Страница 171: ...perature 116 Thermistors 124 125 Sample Temperature 116 Thermocouple Inputs 155 Serial I O Ports 17 115 Multidrop 34 36 Slope 115 SLOPE 100 117 SPAN CAL 130 Remote 30 Span Gas 23 40 88 108 117 120 121 122 123 137 153 154 Span Inlet 23 Specifications 17 18 STABIL 86 100 115 117 Status LED s Relay PCA 157 CAL_VALVE 120 O3_GEN_HEATER 120 125 O3_SCRUB_HEATER 120 PHOTO_LAMP_HEATER 120 PHOTO_REF_VALVE 1...

Страница 172: ...h Remote Contact Closure 92 Zero Span Valves Internal Pneumatics 48 Zero Span Shutoff Valves Pneumatic Set Up 44 VARS Menu Variable Names PHOTO_LAMP 120 124 Ventilation Clearance 20 Venting Exhaust Line 40 43 W Warm up Period 50 Warning Messages ANALOG CAL WARNING 86 BOX TEMP WARNING 86 115 CANNOT DYN SPAN 115 CANNOT DYN ZERO 115 LAMP STABIL WARN 86 115 O3 GEN TEMP WARN 116 O3 SCRUB TEMP WARN 86 P...

Страница 173: ... for range 2 PPB 22 Concentration stability PPB 24 Ozone generator reference detector reading mV 26 Ozone generator lamp drive mV 28 Ozone generator lamp temperature C 30 Ozone scrubber temperature C 32 Ozone scrubber temperature duty cycle Fraction 1 0 100 34 Photometer lamp temperature C 36 Photometer lamp temperature duty cycle Fraction 1 0 100 38 Sample temperature C 40 Sample flow rate cc m 4...

Страница 174: ... slope eng unit V 170 4 External analog input 7 offset eng unit 172 4 External analog input 8 value Volts 174 4 External analog input 8 slope eng unit V 176 4 External analog input 8 offset eng unit MODBUS Floating Point Holding Registers 32 bit IEEE 754 format read write in high word low word order read write 0 Maps to O3_TARG_ZERO1 variable target zero concentration for range 1 Conc units 2 Maps...

Страница 175: ...ite 0 Maps to relay output signal 36 MB_RELAY_36 in signal I O list 1 Maps to relay output signal 37 MB_RELAY_37 in signal I O list 2 Maps to relay output signal 38 MB_RELAY_38 in signal I O list 3 Maps to relay output signal 39 MB_RELAY_39 in signal I O list 20 1 Triggers zero calibration of O3 range 1 on enters cal off exits cal 21 2 Triggers low span calibration of O3 range 1 on enters cal off ...

Страница 176: ...This page intentionally left blank A 4 083730400A DCN8130 ...

Страница 177: ...Appendix B Wiring Diagram 083730400A DCN8130 ...

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