Enmet ISA-44-2OD Uživatelský manuál Strana 17

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ISA-44-2-OD ENMET Corporation
13
4.4 Rough Test
To see that the instrument is capable of alarming, at a quick glance. Do not substitute this procedure for regular
calibration with proper equipment.
For hydrocarbon (combustible) responses:
Hold a butane lighter near the sensor cover. Briefly depress the lever, without striking the flint, to squirt some butane
vapors. Do not squirt butane vapors directly on the sensor. The alarm should trigger; green power light goes off and
the red light and horn activate.
OR
Expose a small amount of rubbing alcohol (methanol) to the atmosphere near the sensor. Waving the cap from an
alcohol bottle should be enough. The alarm should trigger.
For toxic gas response:
Follow the methanol test above.
For oxygen deficiency responses:
Exhale normally over the oxygen cell. The clean air you inhale is about 20.9% oxygen and the air you exhale is about
16% oxygen, well below the preset alarm point. The alarm should trigger.
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