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1. 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 Thurgauerstrasse 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
2. 103 12 306 006 EH 0315 pdf 10 Important Advice 10 1 Restrictions Don t separate the sensor from the circuit board Don t change the length of the lead wires Do not continuously operate the sensor in a high oxygen concentration gt 0 1 O2 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 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 m 4 E E Supporting your great ideas www pewatron com a member of the Angst Pfister Group 103 12 306 006 EH 0315 pdf 11 Specifications Measurement Ranges Supply Current supply Power Consumption Output Accuracy Repeatability Temperature Influence Response Time Gas Temperature Environmental temperature Humidity LxWxH Dimensions Weight m 4 E E Supporting your great ideas 0 1000 ppmOz 24 VDC nominally 7 28 VDC typ 200 m
3. All necessary adjustments and calibrations are being done at the production site The output signal is to be read as followed pOz ppm 1000 ppm lout MA 4 mA 16 mA means pOz oxygen partial pressure in ppm of the total pressure lut output current in MA 9 1 Calibration Adjustments and Periodical Check ups It is recommended to check the device periodically by running it under regular lab conditions and flush the sensor with pure nitrogen 6N to check the zero point After flushing the sensor for 1 minute the output current should be 4 005 0 005 mA 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 and in pure nitrogen should be 0 50 ppm Should there be higher differences as expected try following procedure Zero in Fril Do oO Heizspannung Attach the module to the supply Expose the sensor with a gas with known concentration and in the range 1000 10 ppm After 10min adjust the output signal using the span potentiometer In a clean environment the amplifier should have an output signal of 20 00 mA 0 05 mA Flow pure N 6N After approx ca 10min adjust the output signal to 4 050 mA 0 05 mA using the zero potentiometer This completes the calibration m E E Supporting your great ideas www pewatron com a member of the Angst Pfister Group
4. 306 006 EH 0315 pdf 4 Measuring Principle The sensor module is a complete solution for measuring oxygen within the range of 0 1000 ppmO2 The sensor and the electronics are connected via board The sensor is encapsulated in a pressure tight flow housing The electronics amplify the sensor signal and transform it into a linear current output signal 4 20mA according to IEC 60381 In the picture below the schematics of zirconia sensing elements are shown FCX ULL Dug pocket Cavity 4 FETT Pt Heater Insulated substrate Zirconium oxide heated to about 450 C is penetrable for oxygen ions A voltage applied to the sensor therefore pumps the oxygen out of the inner chamber At a constant gas pressure the quantity of oxygen pumped out is equal to the quantity of oxygen molecules diffusing in through the capillary and within a certain range it is independent of the voltage applied between the electrodes The measurement current it proportional to the quantity of oxygen molecules pumped away The relationship between the oxygen partial pressure and sensor current is governed by the formula IL A 1000 x O2ppm where IL sensor current A sensor output current in 1000ppm O2 A pOz oxygen concentration vol ppmO2 The sensor module performs four tasks Regulation of the heating power of the sensor Amplification of the microampere signal from the sensor Linearization of the relation between oxygen partial
5. pressure and sensor current Conversion of the amplified signal into a standardised current output signal The sensor and module are calibrated to one another at the factory The heating voltage must be custom adjusted for each sensor to bring the temperature to exactly 450 C The sensor is not directly replaceable and cannot be used with other modules m E E Supporting your great ideas www pewatron com a member of the Angst Pfister Group 103 12 306 006 EH 0315 pdf 5 Operation Start 5 1 Mechanical Installation The dimensions of the board are 75 x 40 mm On every corner are mounting holes with a diameter of 3 5 mm 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 6 mm diameter The flow direction is from the top part with the bulb form appearance to the bottom part where the sensor connecting wires comes out Do never use silicone tubes Attention m E E Supporting your great ideas www pewatron com a member of the Angst Pfister Group 103 12 306 006 EH 0315 pdf 5 3 Electrical Connections GND Stromausgang 4 20 mA GND Speisung 7 28 VDC 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
6. to offer the best possible customer service Should you have any questions problems or comments regarding your FCX MP1000 Extern FH 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 m m E Supporting your great ideas www pewatron com PE of the Angst mc IN 103 12 306 006 EH 0315 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 a 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
7. 103 12 306 006 EH 0315 pdf Manual Oxygen module FCX MP1000 Extern FH CH m E E Supporting your great ideas www pewatron com a member of ihe Angst Pfister Group 103 12 306 006 EH 0315 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 2015 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 2015 m m E Supporting your great ideas www pewatron com PE of the Angst mc IN 103 12 306 006 EH 0315 pdf List of Contents List of Contents Customer Service Security Information Measuring Principle Operation Start Mechanical Installation Pneumatic Connections Electrical Connections Supply Analog Output Environment Conditions Warm Up Time Gas Flow Calibration Calibration Adjustment Calibration Span and Zero Important Advice Restrictions Specifications m W E E Supporting your great ideas www pewatron com a member of the Angst Pfister Group 103 12 306 006 EH 0315 pdf 2 Customer Service We at PEWATRON AG would like
8. A 24 VDC Turn off peak approx 0 7 A 2W 4 20 mA linear 50 ppmO2 5 Reading measuring faults in pO2 PO2 X Te C 25 C 500 Te environmental temperature of the sensors lt 8 sec Too 10 50 C 20 70 C 85 RH non condensing 75 x 40 mm 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 Fax 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 10000 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
9. the clamps 3 and 4 can be used m P E E Supporting your great ideas www pewatron com a member of the Angst Pfister Group 103 12 306 006 EH 0315 pdf 6 Environment Condition Also see item 11 in our specifications especially for the temperature and humidity range non condensing e Not to be operated outdoors e Protect the module against humidity e The sensor is best operated in oxygen concentrations below 1000 ppmO2 but can see short periods of atmospheric oxygen 20 9 vol O2 Continuous exposure gt 2 min of the sensor with oxygen concentrations above 1 vol O2 slows the sensor response and limits the lifetime of the sensor 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 8 Gas Flow The following points should be noted The flow should not be less than 0 1 l min and no greater than 1 0 l min ideally it should be 0 5 l min We recommend placing an appropriate filter upstream of the module since contaminants brought in by the flow can significantly shorten the service life of the sensor Avoid condensation H2O in the sensor housing m 4 E E Supporting your great ideas www pewatron com a member of the Angst Pfister Group 103 12 306 006 EH 0315 pdf 9 Calibration

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