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Gas sampling and gas conditioning technology

9-3.20-MD

Manual

Oxygen transmitter Model PMA 05

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Summary of Contents for PMA 05

Page 1: ...Gas sampling and gas conditioning technology 9 3 20 MD Manual Oxygen transmitter Model PMA 05...

Page 2: ...ct addresses can be found in the appendix to this manual Please also consult our homepage www mc techgroup com for further information about our products There you will find the manuals and product da...

Page 3: ...ning 11 12 Calibrate 11 12 1 Zero point calibration 12 12 1 1 Mechanical zero point adjustment 13 12 1 2 Interference effects 14 12 1 3 Consideration of cross sensitivities 15 12 2 End value calibrati...

Page 4: ...when using the device Read the manual before operation and use of the equipment The instructions and warnings in the manual must be followed Work on electrical equipment may only be performed by quali...

Page 5: ...precautions are not taken C A U T I O N without a warning triangle symbol indicates that property damage may result if proper measures are not taken A T T E N T I O N indicates that an undesirable re...

Page 6: ...cations They are a suitable and reliable analyser unit for oxygen monitoring in different processes such as flue gas monitoring inerting systems fermentation processes process and laboratory measureme...

Page 7: ...output 1 of span at range 3 100 digital indicator 0 1 vol O2 analogue signal output 2 of span at range 1 Sample gas outlet pressure the sample gas must flow without pressure out to atmosphere Influen...

Page 8: ...dumbbell there is a small mirror The dumbbell is surrounded by a wire loop which is required for the compensation method The above system is fixed by a platinum strap rotationally symmetrical in a gl...

Page 9: ...2 cm3 and the direct flow of the M C measuring cell an extremely fast response time T90 time of the measuring cell of 1 second can be achieved at a high gas flow rate 8 ASSEMBLY In the bottom panel o...

Page 10: ...s is where the transmitter receives power and the measurement signal is transferred Terminal 11 12 Supply voltage 24V DC max 1 5 A for heating and transmitter Terminal 9 10 Temperature status contact...

Page 11: ...ped with heating the measurement gas should be applied only after heating of the transmitter Temperature status contact closed 12 CALIBRATE Before performing calibrations the system and process specif...

Page 12: ...e adapted to the measurement gas flow rate Wait for approx 30 seconds until the display has stabilised If necessary adjust the zero point with the zero point potentiometer to 0 4mA The zero point pote...

Page 13: ...lows Assign zero gas as described in 13 1 Loosen fixing screw Item 4 of the photocell bracket Turn the adjustment screw Item 6 of the photocell clockwise or counter clockwise until 0 0 oxygen is indic...

Page 14: ...2OH 2 0 78 0 88 Ethylene C2H4O2 0 54 0 60 Furan C4H4O 0 90 0 99 Helium He 0 29 0 32 n hexane C6H14 1 78 1 97 Hydrogen chloride HCL 0 31 0 34 Hydrogen fluoride HF 0 12 0 14 Hydrogen sulphide H2S 0 41 0...

Page 15: ...tmosphere consisting of CO2 and O2 the interference effect can be eliminated easily by using carbon dioxide CO2 for zero point calibration instead of nitrogen N2 Example 2 Determining the oxygen conte...

Page 16: ...neglect of the cross sensitivity in this example would mean a relative error of about 2 NOTICE After zero point calibration the measuring range end value must always be calibrated 12 2 END VALUE CALI...

Page 17: ...f external contamination clean the transmitter only with a cloth dampened with soapy water 14 DECOMMISSIONING For long term shutdown it is recommended to flush the transmitter with a dry inert gas suc...

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