Manual - Pewatron AG
Contents
1. The dimensions of the board are 75 x 40 x 28mm On every corner are mounting wholes with a diameter of 3 5 mm 32 0 pe IF Lal a eee The board holds highly sensitive switches While installing make sure that no components get damaged mechanically Attention 5 2 Pneumatical Connections The flow housing has two pressure ports with 5mm diameter The direction of the flow isn t important Ex Do never use silicone tubes Attention m P E E Supporting your great ideas www pewatron com a theniber of ihe Angst Pfister Group 103 12 306 003 EH 0415 pdf 5 3 Electrical Connections 5 3 1 Supply The module gets supplied with 7 28VDC through the clamps 1 and 2 approx 200mA 24VDC 5 3 2 Analog Output For the output signal the clamps 3 and 4 can be used 6 Environment Condition Also see item 11 in our specifications especially for the temperature and humidity range non condensing e Not to be operated out doors e Protect against humidity The temperature of the sensor is 450 C Be aware of possible dangers while handling sensitive gas mixtures Potentially explosive Atmosphere The device mustn t be opened in a potentially explosive atmosphere 7 Warm Up Time The modules need a warm up time of approx 3 minutes m E E Supporting your great ideas www pewatron com a theniber of ihe Angst Pfister Group 103 12 306 003 EH 0415 pdf 8 Gas Flow H2. If current capacity is not sufficient the sensor module will not operate correctly This sensor module was adjusted for O2 N2 system so abnormal output maybe observed if there are other gases present Don t use in a gas that contains the halogen atoms F Cl Br such as the flon gas The sensor will be damaged by decomposition of the flon gas SOx NOx und H2S will damage the performance of the sensor Therefore please do not use sensor module in the atmosphere that contains these gases 11 Specifications Measurement Ranges Supply Current supply Power Consumption Output Accuracy Stability Repeatability Temperature Influence Response Time Gas Temperature Environment Temperature Humidity LxWxH Dimensions Weight m W E E Supporting your great ideas 0 1 25 O2 24VDC nominally 7 28VDC typ 200mA 24VDC Turn off peak approx 0 7A 3W adjustable 4 20mA 1 FS 0 5 FS Year 1 Reading measuring faults in pO2 pO2 x Te C 25 C 500 Te environmental temperature of the sensors lt 30 sec Too 10 50 C 20 70 C 98 r h non condensing 75 x 40 x 28mm 100g www pewatron com PEVW ATRON a member of the Angst Pfister Group PEV AIRON a member of the Angst Pfister Group We are here for you Addresses and Contacts Matthias R egg Ruhbergstrasse 32 CH 9230 Flawil Phone 41 44 877 35 18 Mobile 41 76 491 66 66 F
3. approx ca 10min adjust the output signal to 4 050mA 0 005mA using the potentiometer 1 The potentiometers on the boards mustn t be tempered with This completes the calibration 9 3 Adjustment if the sensor needs replacing 1 Attach the module to the supply 2 After approx 10 minutes adjust the sensor heating VH at PIN 4 and 5 using the potentiometer 3 Please note that the VH differs from sensor to sensor and has to be adjusted at an accuracy of 0 005V The corresponding values can be found on the attached calibration sheet Use the sensor in regular air 20 9 Oz After 10min adjust the output signal using the potentiometer 2 In a clean environment the amplifier should have an output signal of 17 44mA 0 05mA Flow pure N2 After approx ca 10min adjust the output signal to 4 050mA 0 005mA using the potentiometer 1 This completes the calibration m W E E Supporting your great ideas www pewatron com a member of the Angst Pfister Group 103 12 306 003 EH 0415 pdf 10 Important Advice 10 1 Restrictions 1 Don t separate the sensor from the circuit board 2 Don t change the length of the lead wires Don t operate this sensor in a high oxygen concentration gt 25 Oz If the sensor is exposed to such high oxygen concentration limited output over 20mA will be observed Should this happen please turn off the power source Please use regulated DC power source with current capacity over 1 ampere pc
4. 103 12 306 003 EH 0415 pdf Manual Oxygen module FCX MLxx CH m E E Supporting your great ideas www pewatron com a member of the Angst Pfister Group 103 12 306 003 EH 0415 pdf The items mentioned in this manual are trademarks and might be used for identification purpose Output protocol issue 0 Month Year Valid for Software version February 2012 BE All rights reserved This document may be used by the receiver for its designated purposes It mustn t be copied or translated in any way without special consent in advance Technical amendments reserved Copyright Pewatron AG PEWATRON AG Thurgauerstrasse 66 8052 Zurich Switzerland Tel 41 0 44 877 35 00 Fax 41 0 44 877 35 25 info pewatron com www pewatron com Idt Nr Issue 1 1 Release 2 2012 m m E Supporting your great ideas www pewatron com PE of the Angst mc IN 103 12 306 003 EH 0415 pdf List of Contents List of Contents Customer Service Security Information Measuring Principle Operation Start Mechanical Installation Pneumatic Connections 6 Warm Up Time Gas Flow Calibration Calibration Adjustment Calibration Span and Zero Calibration if the sensor needs to replacing Important Advice Restrictions Specifications m W E E Supporting your great ideas www pewatron com a member of the Angst Pfister Group 103 12 306 003 EH 0415 pdf 2 Customer Service We at PEWATRON AG would like to offer the best possible
5. ax 41 448773519 matthias rueegg pewatron com Sales Switzerland amp Liechtenstein Peter Felder Thurgauerstrasse 66 CH 8052 Ziirich Phone 41 44 877 35 05 Mobile 41 79 406 49 83 Fax 41 448773525 peter felder pewatron com Sales International Key Accounts Sales Germany Postcode 00000 59999 Postcode 80000 99999 Kurt Stritzelberger Neumarkter Str 86a D 81673 Munich Phone 49 89 260 38 47 Mobile 49 171 803 41 35 Fax 4989 43109191 kurt stritzelberger pewatron com Postcode 60000 79999 Dieter Hirthe Auf der Entenweide 4 69502 Hemsbach Tel 49 6201 508 9250 Mobil 49 1637 627 430 Fax 49 6201 508 9751 dieter hirthe pewatron com Sales Austria Kurt Stritzelberger Neumarkter Str 86a D 81673 Munich Phone 49 89 260 38 47 Mobile 49 17 18 03 41 35 Fax 4989 431091 91 kurt stritzelberger pewatron com Sensors Physical Sensors Data Acquisition Thomas Clausen Phone 41 44 877 35 13 thomas clausen pewatron com Geometrical Sensors Eric Letsch Phone 41 44 877 35 14 eric letsch pewatron com Sales Other Countries Product Management Power Supplies DC DC Converters Switching Power Supplies DC AC Inverters Sebastiano Leggio Phone 41 44 877 35 06 sebastiano leggio pewatron com E Components Current Sensors Man Machine Interface Measurement Probes Sebastiano Leggio Phone 41 44 877 35 06 sebastiano leggio pewatron com PEWATRON AG Thurgauerstras
6. customer service Should you have any questions problems or comments regarding your FCX MLxx CH we would appreciate if you get in touch with us We recommend that all services including repairs of the device will only be taken care of by either our customer service or by specially trained staff You can reach us the following address Headquarter PEWATRON AG Thurgauerstrasse 66 8052 Zurich Switzerland Tel 41 0 44 877 35 00 Fax 41 0 44 877 35 25 E Mail info pewatron com Internet www pewatron com Before returning anything please ask for an RMA No Tel 41 0 44 877 35 15 Please send return goods to our Logistic Center PEWATRON AG Logistic Center Hardhofstrasse 31 8424 Embrach ZH Switzerland u m E E Supporting your great ideas www pewatron com PE of the Angst mc IN 103 12 306 003 EH 0415 pdf 3 Security Information Safety hazards that can endanger humans or do damage to the devices are specially mentioned in the user manual Before installing the device you should read the instructions carefully Please take note of all paragraphs that point out possible hazards Warnings and instructions are expressed as followed Means that ignoring this instruction can endanger humans I Means that this instruction has to be followed in order to prevent damage to the device Attention m m el Supporting your great ideas www pewatron com PE of the Angst mc IN 103 12 306 003 EH 0415 pdf 4 Measuring Pri
7. eed the following points The flow should not be smaller than 0 1 and not larger than 3 0l min Optimal 0 5l min We recommend to use a suitable filter since the gas flow can contaminate the sensor which will shorten its life span considerably Avoid condensation H2O inside the sensor housing 9 Calibration All necessary adjustments and calibrations are being done at the production site The output signal is to be read as followed 4 20mA Output mA 57 x In 1 pO2 100 4 means pO2 oxygen partial pressure in of the total pressure lut output current in MA 9 1 Calibration Adjustments It is recommended to check the device periodically by running it under regular lab conditions and flush the sensor with regular air 20 95 Oz 9 2 Adjustment Span and Zero The modules are calibrated and each module is supplied with a calibration sheet The result of the measuring at an environmental temperature of 25 C should be 20 95 O2 0 1 Oz Should there be higher differences as expected try following procedure Sih fe ae re ETTITA el IN S 2 m E E E Supporting your great ideas www pewatron com a thenber of ihe Angst Pfister Group 103 12 306 003 EH 0415 pdf Attach the module to the supply Use the sensor in regular air 20 9 Oz After 10min adjust the output signal using the potentiometer 2 In a clean environment the amplifier should have an output signal of 17 44mA 0 05mA Flow pure Noe After
8. nciple The sensor module is a complete solution for measuring oxygen within the range of 0 1 25 The sensor and the electronics are united on one board The electronic amplifies the sensor signal and puts it out as logarithmic current output signal 4 20mA according IEC 60381 Principle sketch of the O2 Limiting current sensor Diffusion hole Electrodes Stabilized Zirconia Terminal The zirconia is pervious to oxygen ions when heated up to approx 450 C Therefore the oxygen gets pumped out off a cavity by a current attached to the sensor During a constant gas pressure the amount of pumped off oxygen equals the amount of the through the capillaries post defunded oxygen molecules and within a certain range independent of the current attached between the electrodes The measure current is proportional to the amount of the pumped off oxygen molecules The link between oxygen partial pressure and sensor current is according to the following formula Is C In 1 pO2 pt means Is sensor current c constant sensor specific pOz oxygen partial pressure pt gas pressure total The sensor module takes care of two jobs The link between oxygen partial pressure and sensor current Regulation of the heating performance of the sensor m W E E Supporting your great ideas www pewatron com a member of the Angst Pfister Group 103 12 306 003 EH 0415 pdf 5 Operation Start 5 1 Mechanical Installation
9. se 66 CH 8052 Zurich Phone 41 44 877 35 00 Fax 41 4487735 25 www pewatron com info pewatron com A m u Supporting your great ideas www pewatron com
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