- Single channel, internal catalytic Ammonia sensor
- 4-20 mA analog output or user configurable in the field, BACnet® MS/TP (version 1 rev 14) RS-485 or Modbus® RTU (version 1.1b3) RS-485
- 24 VDC or VAC power (ground referenced)
- Easy Plug & Play Smart Sensor replacement at end of life, comes pre-calibrated
- Bright LCD display
- USB port for configuration changes and firmware upgrades
- Optional 2A SPDT dry contact relay (Option -RLY)
- Optional low temperature operation package (Option -LT)
- Standard water / dust tight, corrosion resistant enclosure (drip proof)
- Thermal resetting fuses
- RoHS compliant circuit board
Gas Sensor: Ammonia (NH3), measurement range 0 – 3.00% volume
Tolerant to 17% volume. NOTE: Ammonia is flammable between 15% (LEL) and 28% (UEL) volume in air.
Type: Catalytic
Response Time T90: 30 seconds
Enclosure: Black ABS / Polycarbonate, copper coated interior to reduce RF interference
IP54 rated with splash guard installed
Size: Detector with splash guard: 127 x 127 x 84 mm / 5.0 x 5.0 x 3.3 in
Completely assembled product: 127 x 127 x 182.5 mm / 5.0 x 5.0 x 7.18 in
Coupler: 19.5 mm / 3/4 inch NPT, cast steel
Sensor Assembly Length (including coupler): 98.5 mm / 3.875 inches
Display (Standard): 2-line by 16 character graphic LCD
Operating Temperature: 0°C to 40°C / 32°F to 104°F
Display (Option -LT): 2-line by 16 character OLED display and internal heater
Operating Temperature: -40°C to 40°C / -40°F to 104°F
Power Requirement: 3-wire: 16-30 VDC, 3W, Class 2
4-wire: 12-27 VAC, 50-60 Hz, 3 VA, Class 2
24V recommended
Wiring (CGAS-A-VLT model): VDC (or ground referenced AC): 3-conductor 18 AWG (or larger) shielded, stranded within conduit
VAC 4-conductor shielded 18 AWG stranded within conduit
Wiring (CGAS-D-VLT Model)
VDC or VAC (ground referenced) 4-conductor shielded 16 AWG stranded within conduit, network wiring (daisy-chain)
Conforms to
CSA-C22.2 No. 205-12, UL508 (Edition 18):2018
EMC Directive 2014/30/EU, EN 50270:2015, Type 1, EN61010
FCC. This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
RoHS compliant circuit boards
- Ice Arenas
- Refrigeration Plants
- Cold Storage Rooms
- Freezer Rooms
- Ammonia Plants
- and many more…
