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Rev. 4.2 4/10/2020
Copyright © 2019 by Cool Air Incorporated. All rights reserved.
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It is recommended the detector(s) be tested at least once a month in
critical areas and once a quarter in non-critical areas to ensure they
are operating correctly. Also, the detector must be calibrated at least
once a year to ensure it is detecting and displaying ammonia
concentration accurately. At the time of calibration, you must use a
new test gas bottle of ammonia that can be purchased from Cool Air
Inc. or their distributors. If a new ammonia sensor is installed, the
detector must be recalibrated. All tests and calibrations must be
documented.
TESTING:
To test the detector, follow these steps:
1.
Open the detector enclosure and slide the service switch to
the “SERVICE” position, if needed. This step deactivates
the Early Warning, Alarm, and Auxiliary relays so that any
attached strobe lights, horns, and/or monitoring systems are
not activated. In some applications, if alarming is required,
leave the service switch in the “NORMAL” position.
2.
Using precision Cal Gas of known ammonia concentration
present the gas to the sensor at .3LPM for two minutes. The
top LED lamp (large lamp) shall light up. Also, the Alarm
and Auxiliary relays shall de-energize at this time.
Remember, during the calibration procedure, the Early
Warning LED lamp (amber lamp) will light up, and the
Early Warning relay shall de-energize. This is a factory set,
non-adjustable setting.
3.
Check the following:
a.
LEDs on the front display panel light up from the
bottom to the top.
4.
Remove the ammonia sample.
5.
Wait until the ammonia concentration reading is below the
pre- Alarm set point, slide the service switch to the
“NORMAL” position. this step is only required if the
