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SERVO

PRO NANOCHROME Gas Analyser

119

04416001A / Revision 7

12 ANALYSER TROUBLESHOOTING

This section addresses some of the typical issues that may be experienced whilst
operating the SERVOPRO NanoChrome. The section describes the observed
symptoms, the likely causes, and the potential solutions.

If these steps do not resolve the issue, then contact Servomex for technical support.

Symptom #

Symptom description

Cause

1

Baseline noise

1,2,3,4,5,21,24

2

Unstable baseline

1,2,3,4,5,21,24

3

No peak

6,7,8,9,19,22,23,24,26

4

Saturated detector signal

1,2,3,4,19,21,24

5

Negative peaks

1,2,3,4,24

6

NMHC baseline drift

10

7

Poor repeatability on span calibration

1,2,3,4,5,11,12,13,20,21,23,24,25

8

Poor repeatability on process gas

1,2,3,4,5,12,21,23,24,25

9

Results drift on span calibration gas

14,15,23,24

10

Peak elution time moving

11,22,23,24

11

Sensitivity change on span calibration gas

1,2,3,4,16,17,21,23,24,29

12

Span calibration peak not inside window

9,23,24,25,26

13

Unexpected peak on zero gas (blank)

27

14

High carrier flow consumption

28

Table 31 : Troubleshooting Typical Issues

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Symptoms

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Содержание 04416001A

Страница 1: ...Part Number 04416001A Revision 7 Language UK English SERVOPRO NanoChrome OPERATOR MANUAL...

Страница 2: ...SERVOPRO NANOCHROME Gas Analyser 1 04416001A Revision 7...

Страница 3: ...4 1 5 2 Auxiliary Oven Rear Connections 14 1 6 Standalone PC Rear Connections 15 2 SOFTWARE LICENSE 17 2 1 MICROSOFT SOFTWARE LICENSE TERM 17 3 SPECIFICATIONS 28 3 1 General 29 3 2 Gas 30 3 3 Oven 31...

Страница 4: ...9 4 6 9 Export the Analyser Configuration 80 4 7 Analyser Calibration 81 4 7 1 Noise Threshold THRSH Calibration 81 4 7 2 Span Calibration 82 4 8 Calibration of the 4 20mA outputs 86 4 9 Remote 87 4 9...

Страница 5: ...TART UP AND SHUTDOWN PROCEDURE 110 7 1 Equipment Tools 110 7 2 Installation requirements 110 7 3 Start up procedure 110 7 4 Shut down procedure 112 8 ROUTINE MAINTENANCE 113 9 STORAGE AND DISPOSAL 114...

Страница 6: ...anual checks 48 Table 17 Diagnostic Analyse Chromatogram menu 51 Table 18 Trending menu summary of functions 54 Table 19 Oven set point 59 Table 20 Peak Configuration Columns 65 Table 21 Peak Data 65...

Страница 7: ...Diagnostic menu 55 Figure 20 Configuration System menu 57 Figure 21 Configuration PID menu 61 Figure 22 Configuration Flow menu 62 Figure 23 Configuration Cycle menu 63 Figure 24 Cycle Peak Configurat...

Страница 8: ...assis electrical connections 96 Figure 48 Master with 2 Secondary Chassis electrical connections 97 Figure 49 Stand alone PC with secondary electrical connections 98 Figure 50 Stand alone PC with two...

Страница 9: ...SERVOPRO NanoChrome Important safety information is highlighted in this manual as WARNINGs and CAUTIONs which are used as follows WARNING Warnings highlight specific hazards which if not taken into a...

Страница 10: ...rameters are controlled by the SERVOPRO NanoChrome analytical software package Each impurity peak is reported on screen with its process value The software offers advanced diagnostic tools and trendin...

Страница 11: ...ectron or ion collision that is the kinetic energy of electrons or ions accelerated in an electric field in which the atoms or molecules of a gas are subjected to which cause the emission of light The...

Страница 12: ...the I O board 1 3 6 I O board The I O board holds all the I O functions of the instrument shown in the table below Table 1 I O board All digital inputs and outputs analogue inputs and outputs are tran...

Страница 13: ...cket 6 Gas trap outlet 7 Ethernet port 8 USB port 9 Analogue 4 20 mA outputs 10 Digital outputs 11 Digital input 12 Earth terminals for cable screens 13 Carrier gas inlet to detector 1 14 Carrier gas...

Страница 14: ...e gas inlet 1 process 9 Sample gas inlet 2 span Note the RS 232 port is replaced with a RS 485 port on Secondary Chassis 1 on an analyser with multiple secondary chassis WARNING Any Connections on the...

Страница 15: ...ed to the specific channel making the N2 determination and removes the small volume of interfering background gas which has co eluted with the N2 prior to the passing to the detector 1 5 2 Auxiliary O...

Страница 16: ...ed with the standalone PC USB Ethernet must be fitted with ferrite beads W rth 74271131 or 74271221 depending on cable size which should be clamped around 2 turns of cable CAUTION To comply with the r...

Страница 17: ...onal protective equipment WARNING Improper installation operation or service of this analyser may cause damage to the analyser and void the manufacturer s warranty WARNING All connections must be prop...

Страница 18: ...n during activation and during your use of the software as per the privacy statement described in Section 3 If you do not accept and comply with these terms you may not use the software or its feature...

Страница 19: ...use by one person at a time so long as you comply with all the terms of this agreement Updating or upgrading from non genuine software with software from Microsoft or authorized sources does not make...

Страница 20: ...may only use such hardware or software if you have a license for each instance of the software you are using iii Device connections You may allow up to 20 other devices to access the software install...

Страница 21: ...system Desktop functions as used in this agreement means a consumer or business task or process performed by a computer or computing device This includes word processing spreadsheets database schedul...

Страница 22: ...software is counterfeit improperly licensed or includes unauthorized changes If activation fails the software will attempt to repair itself by replacing any tampered Microsoft software with genuine Mi...

Страница 23: ...service representatives can t resolve it send a Notice of Dispute by U S Mail to the manufacturer or installer ATTN LEGAL DEPARTMENT If your dispute is with Microsoft mail it to Microsoft Corporation...

Страница 24: ...00 USD The AAA rules will govern payment of filing fees and the AAA s and arbitrator s fees and expenses iii Disputes involving any amount If you start an arbitration we won t seek our AAA or arbitrat...

Страница 25: ...ller This warranty is given in addition to other rights and remedies you may have under law including your rights and remedies in accordance with the statutory guarantees under the Australian Consumer...

Страница 26: ...AVC and MPEG 4 visual standards and VC 1 video standards The software may include H 264 MPEG 4 AVC and or VC 1 decoding technology MPEG LA L L C requires thisnotice THIS PRODUCT IS LICENSED UNDER THE...

Страница 27: ...ices including any linked terms You understand that by using the software and services you ratify this agreement and the linked terms There are also informational links in this agreement The links con...

Страница 28: ...S AND DIRECT CONSEQUENTIAL SPECIAL INDIRECT OR INCIDENTAL DAMAGES UNDER ANY PART OF THIS AGREEMENT OR UNDER ANY THEORY THIS LIMITATION APPLIES TO I ANYTHING RELATED TO THIS AGREEMENT THE SOFTWARE INCL...

Страница 29: ...be bonded to the case of the Master Secondary unit using braid less than 20 cm long WAR CAUTION To comply with the applicable requirements of EU EMC Directive The case of the Stand alone PC shall be...

Страница 30: ...ents Voltage Frequency Power maximum Master chassis Secondary chassis Auxiliary oven Stand alone PC 100 to 120 Vac or 220 to 240 Vac1 2 50 to 60 Hz 400 VA 400 VA 100 VA 60 VA Fuse rating type Master S...

Страница 31: ...argon with 1 ppb total impurity application dependent 553 7 kPa 80 1 psig 587 7 kPa 85 1 psig 90 cc min to 810 cc min3 Sample gas Type Pressure range Flow Hydrogen Oxygen Nitrogen Argon Helium 207 0 k...

Страница 32: ...emperature range 5 C to 40 C Operating ambient humidity range 0 to 95 RH non condensing Maximum Operating altitude 2000 m max Ingress protection IP20 Table 5 Environmental limits 3 5 Digital Relay Out...

Страница 33: ...ge 4 to 20 mA Less than 4 mA Over than 20 mA 24 mA maximum Cable requirements Type Size Multi strand twisted pair with overall screen 0 2 3 3 mm2 24 12 AWG Maximum length 30 m Table 7 4 20 mA outputs...

Страница 34: ...ion of screening or similar protection Table 9 Ethernet cable 3 9 RS 232 Port Type Male 9 way D connector Cable requirements NULL modem Shielded cable Maximum length 10 m Table 10 RS 232 port 3 10RS 4...

Страница 35: ...3 12Mains input cables Master Secondary Stand alone PC Type IEC 60320 1 C13 Cable requirements Screened Specified for 10 A 250 Vac Fit with a main plug that meets the requirement of the country where...

Страница 36: ...ngth Figure 5 Edit Box control When an Edit Box control is available to accept an input a cursor appears To operate an Edit Box control from the keyboard Press LEFT or RIGHT to move the cursor Press H...

Страница 37: ...r up one position Press DOWN to move the slider down one position Press HOME to move the slider to the top of the slide Press END to move the slider to the bottom of the slide To operate using the mou...

Страница 38: ...eft clicking with the mouse to highlight the cell then enter the new value 4 1 6 Combo control The Combo Box control is used to choose a value between sets of predetermined values Figure 10 Combo Box...

Страница 39: ...it checked enabled or unchecked disabled To operate using the mouse left click in the check box to make it checked enabled or unchecked disabled 4 1 8 Tab control The Tab control is used to switch bet...

Страница 40: ...3 1 Real Time Chromatogram Menu The REAL TIME CHROMATOGRAM menu can initiate a cycle and visualise the resulting real time chromatogram The chromatogram presents all the peak data that can be configur...

Страница 41: ...s detected and used for integration is presented in yellow below the raw signal coming from the detectors During the cycle the progress bar rises with time The bar starts at the left and ends at the r...

Страница 42: ...ess the Historic Alarm menu This button will turn red when an alarm occurs turn yellow when the menu is opened and alarms are still active and turn green if the problem is resolved The Historic Alarm...

Страница 43: ...ll saved data will be over written with the new data The oldest data will be over written first Note that a tick mark little vertical line is displayed on the real time chromatogram at every starting...

Страница 44: ...t point greater than 10 cc min Low carrier flow When the carrier flow falls below 5 cc min for the plasma detector for 30 seconds a Plasma X on I O Board X shut down alarm will be initiated to protect...

Страница 45: ...data with an electronic board inside the analyser 2 Peak value alarms Peak value alarms do not impact the system status alarm dry contact output Alarm 1 peak When the concentration of impurity is grea...

Страница 46: ...s are reached Some system functions such as a real time chromatogram are disabled when alarms are active Rectify the problems before proceeding with your analysis When the problem is resolved the same...

Страница 47: ...is divided in hardware component groups Acquisition boards read signals coming from detectors applying polarisation IO boards viewing oven temperatures changing plasma power Pressure regulators viewin...

Страница 48: ...e of 4 levels Offset Displays the voltage applied at the input of the acquisition board to provide an offset to the signal Scale Factor Displays scale factor in use x1 x2 x5 or x10 applied to the gain...

Страница 49: ...6Table 16 Table 16 Diagnostic menu lists parameters that can be manually changed to help diagnose a problem Parameter Meaning Active Detector Selects the detector seen by the system Only detectors for...

Страница 50: ...he right starting and ending times for the peaks When the menu is first opened the software requests the name of a file that has been previously saved This can be a real time chromatogram or a trendin...

Страница 51: ...ursor the data changes 1 Set times as start end F4 Use the Set times as start end F4 button to directly modify the peak data The times specified in the edit control for each position will be automatic...

Страница 52: ...size Delete F7 Removes a trending from the memory Load F6 Opens and displays a trending file saved in memory Set times as start end F4 Changes the starting and the ending of the peak you select with t...

Страница 53: ...n generator power and frequency These values must then be entered in the peak data table Before starting a trending ensure all parameters set in the CONFIGURATION SYSTEM menu such as sample flow carri...

Страница 54: ...hat valve see Figure 18 If the box in the Follow column is unchecked the valve can be manually turned on and off using the combo box located in the State column The valve table showing the timings for...

Страница 55: ...u valve state Push Button Hot key Functions Start Stop F2 Start and Stop a trending Generator Power F3 Set the generator power for the detector Re Zero F4 Executes a Zero Re Zero Det F5 Change the det...

Страница 56: ...Figure 19 Diagnostic Advanced Diagnostic menu 1 4 20 mA Diagnostic This combo box is used to manually control the 4 20 mA analogue outputs First select the board to diagnose by using the combo box ju...

Страница 57: ...his combo box is used to confirm the valves on the I O Boards are working properly First select the I O Board to diagnose by using the combo box just under the title Valves Diagnostic Use the combo bo...

Страница 58: ...iguration System menu 1 Analog output Two modes are available The Hold mode maintains the 4 20 mA outputs even if a new cycle is started The Track mode ensures analogue outputs always track input gas...

Страница 59: ...the analyser switches to the next higher range The next integration gives the proper result If the result of a peak is lower than 90 of the lower range currently set the analyser switches to this lowe...

Страница 60: ...imum 300 Resolution 1 Regen temp 200 Table 19 Oven set point DO NOT CHANGE THESE SETTINGS they are factory configured 8 Remote Starting Enable When the box is checked a cycle can be started by the dig...

Страница 61: ...nt configuration This button is used to print the system configuration For analysers with multiple configurations this function will only print the current system configuration 13 Change Password This...

Страница 62: ...GURATION on the menu bar and then on PID to access the CONFIGURATION PID menu see Figure 21 This menu allows changes to the PID settings for flows and ovens Be sure to save the current settings before...

Страница 63: ...then on Flow to access the CONFIGURATION FLOW menu see Figure 22 This menu contains the flow sensor table set up during the factory configuration The information on this table may be useful when serv...

Страница 64: ...ystem information when a cycle Real time chromatogram is in progress 1 General Cycle Data and 4 20 mA Peak Association This menu is used to set the duration of the cycle length of one chromatogram and...

Страница 65: ...he grid at the top of this menu shows general information see Table 20 Peak Configuration Columns Additional information about the peak currently highlighted in the grid is shown in the area below the...

Страница 66: ...e maximum full scale of the analyser Range 1 Shows the factor selected to re scale Range 2 to the lower Range 1 Unit Unit of the peak PPM PPB or Sample loop Volume of sample introduced in ccs ml Table...

Страница 67: ...this menu are described below for information only Figure 25 Peak Detection configuration menu DO NOT CHANGE THESE SETTINGS they are factory configured Integration algorithm The peak detection method...

Страница 68: ...reducing the integration window as a function of height which in turn reduces the integrated baseline noise Figure 27 shows the principle used for the peak window reduction the three parameters that a...

Страница 69: ...start reduction factor has been set to 15 and the max end reduction factor has been set to 30 then at the maximum the total window is reduced by 45 Yellow integrated peak If a peak is detected the fil...

Страница 70: ...alve state Each row in the grid indicates a sequence for the selected valve see the example shown in Figure 29 The timings for valve ON open or OFF close are set during factory configuration Figure 28...

Страница 71: ...le which is used to change a flow set point during a cycle A time of 7200 secs means that this point is not in use In the example shown in Figure 30 the set point is 30 cc min at the beginning of the...

Страница 72: ...Date Time Click on Configuration on the menu bar and then on Date Time to access the CONFIGURATION DATE TIME menu see Figure 31 Use the combo box control to change the value of the date and the time C...

Страница 73: ...HESE SETTINGS they are factory configured Access to the Advanced Configuration menu requires entry of a password The default password is the serial number of the analyser and can be changed in the CON...

Страница 74: ...peration NOTE Turning off System Alarm can be dangerous For example when working with Hydrogen the analyser will stop advising of problems The menu allows the RS232 communication can be turned ON and...

Страница 75: ...tector is associated to the plasma cell by selecting its location on an I O board and its number on this I O board The plasma detector association is used to process alarms such as Plasma Off Plasma O...

Страница 76: ...I O Board and a plasma detector see Figure 34 The menu shows the name given to each flow and its location on the appropriate I O Board and for a carrier regulator its association with a plasma detecto...

Страница 77: ...yser 76 04416001A Revision 7 4 Valve The Valve menu associates a valve number to a valve channel on an I O Board see Figure 35 DO NOT CHANGE THESE SETTINGS they are factory configured Figure 35 Advanc...

Страница 78: ...er 77 04416001A Revision 7 5 Oven The Oven menu associates an oven with an I O Board and a channel on the I O board see Figure 36 DO NOT CHANGE THESE SETTINGS they are factory configured Figure 36 Adv...

Страница 79: ...LARM menu Figure 37 This menu allows configuration of the alarms The status alarm relay can be closed or opened when a status alarm is activated by clicking on the relevant radio box button To set the...

Страница 80: ...a printer copy the printer driver to a USB stick and insert into the USB port on the front of the analyser Click on the Add Printer button and enter the password either c a i or the serial number of t...

Страница 81: ...access the CONFIGURATION SYSTEM menu Insert a USB stick in the USB port on the front of the analyser Click on the Export Configuration button to export the data to the USB stick A message will appear...

Страница 82: ...nalysed The analyser must be properly started and purged before the execution of a calibration The calibration procedure consists of the Noise Threshold Calibration followed by the Span Calibration Fi...

Страница 83: ...mpleted YES is displayed in the TRS done column of the grid 7 Disable the Noise Threshold Calibration with the Disable F2 button one button performs dual functions Enable or Disable depending on the a...

Страница 84: ...n are set during factory configuration 6 Select OK and the pop up menu will disappear 7 For multiple peaks repeat the above steps for each peak name 8 For each peak to be calibrated left click on the...

Страница 85: ...the active mode Figure 40 Calibration Span menu The value set in the Calib Gas Value column must be the impurity value of the calibration gas before the dilution The software automatically calculates...

Страница 86: ...ea that covers the peak in counts digital converter units This area is used to generate the concentration displayed in the Result column Response factor this is the area counts divided by the value in...

Страница 87: ...are normally on the first I O board for a multiple chassis analyser Step 2 Select the output to be calibrated Step 3 Connect an ammeter to the corresponding output on the rear panel of the analyser St...

Страница 88: ...equired to use the Report Software Two types of IP address can be configured Static or DHCP A static address is an address that is manually set once and a DHCP address is an address that is automatica...

Страница 89: ...oftware button is used to test the analyser detection of a USB key that can then be used to acquire data for the Report Software 4 9 2 Remote Control Click on Remote on the menu bar and then on Remote...

Страница 90: ...n the menu bar to access the ABOUT MENU Figure 44 About menu This menu shows the software version of the user interface PC the firmware versions of the embedded electronic boards and information about...

Страница 91: ...s When the stored data reaches 99 capacity the new data will over write the files starting with the oldest To transfer the data insert a USB key into the port at the front of the analyser and press th...

Страница 92: ...analyser is powered off If you close the analyser without using Quit there is the risk that data will be corrupted After the Quit button has been pressed wait for the black screen and then turn the po...

Страница 93: ...ediately contact Servomex or local Servomex agent 4 If the analyser is not going to be used immediately o Place the analyser and any other equipment supplied back in its protective packing o Store the...

Страница 94: ...upported both by the front and the back 6 1 1 Electrical safety WARNING Ensure that the electrical installation of the analyser conforms to all applicable local and national electrical safety requirem...

Страница 95: ...ctrical supply cables must be rated of temperature of 70 C or higher Route cables that you connect to the analyser so that they do not present a trip hazard When carrying out insulation testing discon...

Страница 96: ...er source must use properly rated cables see section 3 12 If an auxiliary oven is supplied connect the cable coming out of the auxiliary oven to the chassis connector named Auxiliary Oven see section...

Страница 97: ...RO NanoChrome that is supplied with a master chassis and two secondary chassis The RS 485 port of the Master Chassis connects to the first RS 485 port of Secondary Chassis 1 The second RS 485 port of...

Страница 98: ...RO NANOCHROME Gas Analyser 97 04416001A Revision 7 Figure 48 Figure 48 Master with 2 Secondary Chassis electrical connections WARNING The units shall only be connected using the cables supplied by Ser...

Страница 99: ...always be connected to the same protective earth as the secondary chassis of the system If an auxiliary oven is supplied connect the cable coming out of the auxiliary oven to the connector named Auxil...

Страница 100: ...PC with two secondary chassis The stand alone PC RS 232 port To Analyser connects to the RS 232 port on the Secondary Chassis 1 The RS 485 port on Secondary Chassis 1 connects to the RS 485 port on S...

Страница 101: ...VOPRO NANOCHROME Gas Analyser 100 04416001A Revision 7 Figure 50 Stand alone PC with two Secondarys electrical connections WARNING The units shall only be connected using the cables supplied by Servom...

Страница 102: ...tal input connection WARNING The digital input terminals are separated from the analyser mains circuits by reinforced insulation The terminals must only be connected to circuits that are themselves se...

Страница 103: ...2 3 4 20 mA outputs The schematic of the 4 20 mA output circuit is shown in Figure 53 Use a shielded twisted cable to connect between the analyser and the monitoring system with a load resistor connec...

Страница 104: ...7 4 20 mA 7 7 7 F7 8 4 20 mA 8 8 8 F8 9 HR HR HR F9 Table 24 4 20 mA connections and associated fuses WARNING The analogue output terminals are separated from the analyser mains circuits by reinforce...

Страница 105: ...tional RS 232 port The computer is connected to the analyser by the mean of a DB 9 RS 232C Null modem cable The computer must have appropriate software to read the data transmitted by the analyser See...

Страница 106: ...ampling system includes any pressure regulator valve line fitting filter purifier etc which is in contact with the sample or carrier gas to be introduced into the analyser Even small leaks can introdu...

Страница 107: ...as purifier to generate the carrier gas 1 Gas Purifier The SERVOPRO PureGas purifier is available with either compression or VCR fittings and for use with 110V or 220VAC power supplies The model numbe...

Страница 108: ...The carrier gas is normally He which will be taken to Carrier Inlet 1 For multiple chassis configurations the carrier gas should be split to feed each chassis Carrier Inlet 2 Carrier Inlet 2 will be...

Страница 109: ...ses carrier gas to dilute a calibration gas to a fixed ratio nominally a factor of 20 to generate a suitable span gas concentration That means a suitable span gas concentration of 5ppm will be diluted...

Страница 110: ...o 6 for all chassis CAUTION A SERVOPRO NanoChrome may consist of multiple chassis Each chassis has its own internal dilution system which will require verification of the dilution ratios for each rele...

Страница 111: ...aps are removed Do not pressurise detector vent s The carrier gas must be connected to the analyser before power is applied 1 Verify main voltage rating 2 Connect carrier gas purifier and follow insta...

Страница 112: ...em To purge the internal dilution system go into Calibration Calibration menu and click the button Click for Span This activates the internal dilution system Leave the analyser in that state for 5 min...

Страница 113: ...for 12 injections Verify that the last 4 results are within repeatability specification Compare with results from the analyser Test Results Sheet TRS 21 Inject the process gas continuously and monitor...

Страница 114: ...e same value as for the previous calibration procedure This will ensure the same sample volume is injected The default value is 50 cc min per channel 4 Clean the cabinet fan filter periodically This w...

Страница 115: ...ciated equipment in a clean dry area Do not subject it to excessively hot cold or humid conditions 9 2 Disposal Dispose of the analyser and any associated equipment safely and in accordance with the l...

Страница 116: ...e Directive by the application of EN 61010 1 and rated for Over Voltage Category II Pollution Degree 2 The analyser complies with the Class B digital apparatus requirements of ICES 001 of Canada throu...

Страница 117: ...cter No Character ASCII Code No hex Meaning 1 3Eh 2 B 42h command ID 3 1 31h 1 success 4 1 or 0 31h or 30h Analyser ready 1 ready 0 not ready still running 5 1 or 0 31h or 30h Run Modus 1 measurement...

Страница 118: ...n 0 and 9 20h or 30h to 39h 81 Space or any Character between 0 and 9 20h or 30h to 39h 82 Space or any Character between 0 and 9 20h or 30h to 39h 83 Space or any Character between 0 and 9 20h or 30h...

Страница 119: ...an 30h or 31h 5 3Ch 5 Peak 2 0 or 1 30h or 31h 6 Peak 3 0 or 1 30h or 31h 7 Peak 4 0 or 1 30h or 31h 8 Peak 5 0 or 1 30h or 31h 9 Peak 6 0 or 1 30h or 31h 10 Peak 7 0 or 1 30h or 31h 11 Peak 8 0 or 1...

Страница 120: ...nstable baseline 1 2 3 4 5 21 24 3 No peak 6 7 8 9 19 22 23 24 26 4 Saturated detector signal 1 2 3 4 19 21 24 5 Negative peaks 1 2 3 4 24 6 NMHC baseline drift 10 7 Poor repeatability on span calibra...

Страница 121: ...ide integration window 15 14 Span bottle almost empty 10 content 16 15 Unstable ambient conditions pressure temperature 17 16 Span gas mixture 18 17 Wrong span gas background mixture 19 19 Damaged det...

Страница 122: ...is stable 15 Verify that carrier gas set points are as per analyser TRS Verify that carrier gas flow is stable Verify that oven temperature are as analyser TRS and stable Revalidate PIDs and re save...

Страница 123: ...amination such as particulates or moisture 27 Connect a flow meter to the carrier vent Reduce carrier supply pressure to have a vent flow close to the one specified in the analyser TRS 28 Verify dilut...

Страница 124: ...implement the WEEE Directive For additional information and advice on the disposal of the analyser in accordance with the requirements of the WEEE Directive contact Servomex at info servomex com or yo...

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