Rki-instruments GX-8000(PT0-098) Manual de usuario descargar pdf (Pagina 5)

2 Important Notices on Safety 2-1. Danger cases

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Important Notices on

Safety

2-1. Danger cases

DANGER

About explosion-proof

• Do not modify or change the circuit or structure, etc.

• When measuring the oxygen concentration, do not measure anything but a mixture of air and

combustible gases or vapors and toxic gases.

• When using this gas monitor in a hazardous area, take the following countermeasures for

preventing dangers resulting from electrostatic charges.

(1) Wear anti-static clothes and conductive shoes (anti-static work shoes).

(2) For indoor use, use the gas monitor while standing on a conductive work floor (with a

leakage resistance of 10 MΩ or less).

• The battery units that can be connected are the BUL-8000(G) (certificate number TC19437) or

BUD-8000(G) (certificate number TC19438).

• The specifications of the gas monitor are as follows:

Pump circuit: Allowable voltage of 4.95 V, allowable current of 1.12 A, and

allowable power of 1138 mW

Combustible gas sensor circuit: Allowable voltage of 4.95 V, allowable current of 0.834 A, and

allowable power of 853 mW

Buzzer circuit: Allowable voltage of 4.95 V, allowable current of 0.431 A, and

allowable power of 441 mW

Main circuit: Allowable voltage of 4.95 V, allowable current of 0.717 A, and

allowable power of 733 mW

Backup circuit: 3.0 VDC, 10 µA

About use

• While conducting measurement in a manhole or confined space, do not lean over or look into the

manhole or closed space. It may lead to dangers because oxygen-deficient air or other gases

may blow out.

• Oxygen-deficient air or other gases may blow out from the gas exhausting outlet. Never inhale

the air or gases.

• High-concentration (more than LEL) gases may blow out. Never use fire near the gas monitor.

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Rki-instruments GX-8000(PT0-098) Manual de usuario Pagina 5