User Manual

cGas Ammonia Vent Line Transmitter - Addendum Rev. B | 2022.09
10 © 2022 All rights reserved. Data subject to change without notice.
Be careful not to trap the wire outside the enclosure when closing the door.
3 SENSOR SPECIFICATIONS AND CONSIDERATIONS
The cGas Ammonia Vent Line Detector comes with a catalytic ammonia sensor potted inside
the 5cm / 2 in long pipe tting that protrudes from the back of the enclosure.
The ammonia sensor has a standard measurement range of 0 - 3.00% vol or 0 - 30,000 ppm.
The ammonia sensor has a lifespan of approximately 2 to 3 years in air. Exposure to very
high concentrations of ammonia (>17 %vol) should be avoided. A large release of a high
concentration of ammonia may burn out the sensor and it will need to be replaced.
If you install and power up the cGas Ammonia Vent Line Detector as soon as it arrives, the
sensor will require about a 5 minute warm up period. The sensor goes through a burn in
period at our factory so it is ready for operation upon arrival. If the device is not installed
within two weeks of delivery, the sensor may require a longer warm up time to stabilize and
provide accurate readings (approximately 48 hours).
During calibration, when owing span gas on an ammonia sensor, if the reading climbs
higher than the calibration point after applying gas for 3 minutes, use that reading as the
calibration point.
Silicone, lead and chlorinated hydrocarbon vapours can poison catalytic sensors.
Temperature affects calibration. It is important to ensure the gas is at the appropriate
temperature during calibration. If the sensor is being used in an extreme temperature range,
calibration should be done in that same temperature range.