© 2021 All rights reserved. Data subject to change without notice.
9
Rev. B | 2021.08
cGas Detector Analog Transmitter - Installation Manual
2 INTRODUCTION
2.1 General Description
Thank you for purchasing our CGAS-A analog cGas Detector, a single sensor, 4
- 20 mA transmitter available with a wide range of sensors and sensor types for
continuous monitoring of hazardous gases or oxygen in non-hazardous (non-
explosion rated) environments such as commercial HVAC and light industrial
applications.
The CGAS-A transmitter is available with internal or remote sensor and operates
by diffusion. The sensors utilized in this device are accurate enough to measure
to Occupational Health & Safety (OHS) hazardous levels for toxic gases.
2.2 Key Features
• Single gas channel
• 4 - 20mA analog output (signals gas concentration reading)
• Easy Plug & Play Smart sensor replacement at end of life
• Pre-calibrated replacement sensors
• 24 volt DC or (ground referenced) AC power
•
In-field upgradable firmware/configuration via USB stick
• Bright LCD display
• Option -LT*: Low temperature package for improved usability in cold
environments
• Option -RHT**: Relative Humidity and Temperature sensor
•
Option -RLY***: One SPDT dry contact relay, rated 30 volts, 2 amps max
• Option -S: Splash guard, factory installed, IP54 rated enclosure
• Option -SN: Splash guard for sticky gas sensors, factory installed
• Standard water / dust tight, corrosion resistant enclosure (drip proof)
