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Oxygen Gas Detector Head

GD-F3A-SC-A

Operating Manual

(PT2-150)

PT2E-2490

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Содержание GD-F3A-SC-A

Страница 1: ...Oxygen Gas Detector Head GD F3A SC A Operating Manual PT2 150 PT2E 2490...

Страница 2: ...tor head 2 Alarm level for gas alarm instrument shall be set within the performance of the instrument Our standard alarm level is 18 by volume for the prevention of oxygen deficiency 3 This is not con...

Страница 3: ...le 10 Example of cable connection 10 OPERATION METHOD Preparation before start up 12 Start up 12 Stopping the operation 12 MAINTENANCE AND INSPECTION Inspection frequency and items 13 Calibration Requ...

Страница 4: ...L CASE Responding to trouble alarm 18 Before it is thought to be a trouble 18 PRODUCT SPECIFICATIONS Standard specifications 19 Standard accessories 19 Optional accessories 19 Detection principle 20 D...

Страница 5: ...esigned as drip proof construction for outdoor installation Also it can be used as intrinsically safe system in combination with zener barrier option to be able to install in hazardous area Identifica...

Страница 6: ...nterval 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 away with...

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Страница 8: ...11mm from outside Hinge Hinge for front door Lock Lock for front door Mounting hole Mounting hole to fix this unit on the wall surface Terminal strip 2 Relayed terminal for input output signal use to...

Страница 9: ...apacitance Co of intrinsic safety circuit and external wiring inductance Lw and capacitance Cw of intrinsic safety circuit Lo Li Lw Co C Cw 3 When making wiring connection for intrinsic safety circuit...

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Страница 13: ...cable For system installation operation and maintenance take care not to damage the intrinsically safe design The power of the indicator alarm unit shall be turned on after completion of all wirings...

Страница 14: ...ted correctly this system starts operation by putting on the power switch in indicator alarm unit Be sure to perform gas calibration at the time of new installation Correct reading may not be obtained...

Страница 15: ...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 16: ...the supply of zero gas disconnect calibration adapter and confirm that the oxygen reading returns to 20 9vol Completion of zero adjustment Performing a span adjustment Plug the ammeter lead into termi...

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Страница 18: ...sor Environment of low temperature 5 10 Environment of low oxygen content Put a sensor into the container and seal off the container List of recommendable spare parts for regular replacement No Name o...

Страница 19: ...etector 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 ti...

Страница 20: ...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 21: ...m unit Zener barrier MTL7728ac MTL7728 MTL7728 ZB 1A ZB 1A ZB 1A ZB 4A ZB 4A ZB 4A Cable entry Cable gland Applicable cable O D 8 11mm Operating temperature 10 40 non rapidly vary Operating humidity L...

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Страница 23: ...r 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 detect...

Страница 24: ...Manual Log Rev Amendment Issue data 0 First issue 2018 1 9...

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