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PT2E-2480

Oxygen Gas Detector Head

GD-F3A-A

Operating Manual

(PT2-149)

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Содержание GD-F3A-A

Страница 1: ...PT2E 2480 Oxygen Gas Detector Head GD F3A A Operating Manual PT2 149...

Страница 2: ...addition it may be fluctuated by environmental temperature humidity etc changes in the installation site 2 The alarm must be set within a range where the performance of the detector can be ensured Th...

Страница 3: ...art up 11 Stopping the operation 11 MAINTENANCE AND INSPECTION Inspection frequency and items 12 How to calibration Required kit and tools for calibration 13 Performing a zero adjustment 13 Performing...

Страница 4: ...sensor and is used in combination with indicator alarm unit to show oxygen content Read the instruction manual for indicator alarm unit as well as this manual This unit is designed as drip proof cons...

Страница 5: ...terval Do not change or remodel the circuit structure of this unit Do not disassemble the sensor since there is a electrolyte inside If your finger touches the electrolyte wash your finger way with wa...

Страница 6: ...4 PRODUCT FUNCTION External dimensions Sensor Cable inlet Protective ground...

Страница 7: ...ed filter inside Sensor lead Lead wires for oxygen signal outputs Terminal strip Relayed terminal for sensor lead and external cable Cable gland Entrance to lead the cable 8 11mm from outside Hinge Hi...

Страница 8: ...ance division ia Group C 3 Relations between allowable inductance Lo and allowable capacitance Co of intrinsic safety circuit and external wiring inductance Lw and capacitance Cw of intrinsic safety c...

Страница 9: ...t inside detector head Detector head Indicator alarm unit Non hazardous area Non hazardous area CVVS1 25mm2 2C or equivalent MAX600m Sensor holder Oxygen Atmosphere Cable gland Shielded cable Housing...

Страница 10: ...aces where the temperature is drastically changed Places exceeding operating temperature and humidity Maintenance space A certain maintenance space must be secured around the detector head so that the...

Страница 11: ...he optional zener barrier between this unit and indicator alarm unit at non hazardous area See below fig Connect the other end cable to the indicator alarm unit Connect the shield s drain wire at the...

Страница 12: ...s grounding with ground resistance of 10 or less Use the specified cable For system installation operation and maintenance take care not to damage the intrinsically safe design The power of the indica...

Страница 13: ...indicator alarm unit Be sure to perform gas calibration at the time of new installation Correct reading may not be obtained before gas calibration Stopping the operation This system stops operation by...

Страница 14: ...cessary to carry out gas calibration at least every 6 months The law in Japan sets forth that the unit must issue an alarm during the circuit inspection related to alarm while providing normal operati...

Страница 15: ...tor alarm unit Stop the supply of zero gas disconnect calibration adapter and confirm that the oxygen reading returns to 20 9vol Performing a span adjustment Pack the span gas fresh air for oxygen def...

Страница 16: ...terminal and black wire to negative terminal respectively Close the front door of the detector head and fasten a lock Replacing the sensor Required kit and tools for calibration 32 Performing a zero...

Страница 17: ...tor head is relocated select a new place in accordance with 4 2 Installation place and 4 4 Installation works For information on wiring work see 4 5 Caution at wiring construction The unpowered time m...

Страница 18: ...agent or RIKEN KEIKI Before it is thought to be a trouble Check the wirings around the related instruments as well as this detector head It may be caused by improper operation Re check the detection...

Страница 19: ...8 11mm Operating temperature 10 40 non rapidly vary It may differ according to mounted sensor Operating humidity Less than 95 RH non condensing It may differ according to mounted sensor Structure Wal...

Страница 20: ...er is opened and covered with a barrier The negative electrode is installed in contact with the barrier Lead wires are drawn from the positive and negative electrodes to obtain outputs A thermistor is...

Страница 21: ...Safety retainer for explosion protection by limiting the energy of electric current within a non ignition level CVVS This is a kind of connecting cable between indicator alarm unit and oxygen detecto...

Страница 22: ...Manual Log Rev Amendment Issue data 0 First issue 2017 2 13...

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