cGas Detector Carbon Dioxide (CO2) Transmitter

For monitoring: Carbon dioxide

Low maintenance Carbon dioxide (CO2) gas detector available in ppm or %vol with Plug & Play Smart Sensor Technology

Applications

  • Greenhouses
  • Wineries
  • Breweries
  • Marine Vessels
  • Fruit Ripening Rooms
  • CO2 Fire Suppression
  • CO2 Storage Rooms
  • CO2 Refrigeration Systems
  • Beverage Bottling Facilities
  • and many more...

Key Features

  • One 4-20 mA analog output or user in the field configurable BACnet® MS/TP RS-485 or Modbus® RTU RS-485 digital output signal to a BAS
  • 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 RH & Temperature sensor (Option -RHT)
  • Optional low temperature operation package (Option -LT)
  • Standard water / dust tight, corrosion resistant enclosure (drip proof); IP54 rated with optional splash guard (Option -S) installed
  • 24 VDC or VAC power (ground reference)
  • RoHS compliant circuit boards

Description

The cGas Detector Carbon Dioxide Transmitter is a low maintenance gas monitoring device designed for use in non-explosion rated, commercial applications that require continuous monitoring of CO2.

It offers one 4-20 mA analog output or a user selectable in the field digital output with your choice of BACnet® or Modbus® for communicating with a Building Automation System or ventilation controller. Ideal for use for applications where compressed CO2 is used and stored, climate control in commercial buildings and other processes requiring the continuous monitoring of CO2.

Powered by 24 VDC or ground referenced AC, the CO2 cGas Detector has an LCD display, temperature compensation, thermal resetting fuse and the firmware and configuration can be upgraded in the field using the USB connection. Pre-calibrated sensors with true Plug & Play Smart Sensor technology makes replacing sensors quick and easy.

The cGas CO2 Detector comes in a standard water / dust tight, corrosion resistant ABS/ polycarbonate enclosure with a hinged, secured door. With the optional, factory installed splash guard the enclosure is IP54 rated and provides protection in water spray or wash down applications.

Target Gas
Infrared Sensor
Carbon dioxide (CO2)
Mechanical
Enclosure
Black ABS / Polycarbonate, corrosion resistant
Copper coated interior to reduce RF interference
IP54 rated with splash guard installed (Option -S)
Weight
400 g / 14 oz
Size
127 x 127 x 76 mm / 5.0 x 5.0 x 3.0 inches
User Interface
Display
2-line by 16 character graphic LCD, black on green
Push Buttons
Initiate calibration and menu options with internal UP, DOWN and ENTER push buttons
USB Port
Internal port for USB memory stick for field configuration updated / firmware upgrades
Input/Output
Analog Output (CGAS-A models)
One linear 4 - 20 mA analog
Digital Output (CGAS-D models)
User configurable in the field, BACnet® MS/TP (version 1 rev 14) RS-485 or Modbus® RTU (version 1.1b3) RS-485
(user configurable in the field)
Electrical
Power Requirement
16-30 VDC, 3 W, Class 2
12-27 VAC, 50-60 Hz, 3 VA, Class 2
Analog Wiring (CGAS-A models)
VDC (or ground referenced AC): 3-conductor 18 AWG (or larger) shielded, stranded within conduit
VAC 4-conductor shielded 18 AWG stranded within conduit
Digital Wiring (CGAS-D models)
VDC or VAC (ground referenced) 4-conductor shielded 16 AWG stranded within conduit, network wiring (daisy-chain)
Fuse(s)
Automatic resetting thermal
Environmental
Operating Temperature
0°C to 50°C (32°F to 122°F)
Operating Humidity
15 - 90% RH non-condensing
Certifications
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.
Listed by BTL
pending
Conforms to
RoHS compliant circuit boards
Product Codes
CGAS-A-CO2-6
Internal infrared carbon dioxide (CO2) sensor (0 - 5,000 ppm), LCD display, 4-20 mA output, 24 VDC or VAC power, black ABS/PC water / dust tight enclosure, plug & play smart sensor technology 
CGAS-A-CO2-18
Internal infrared carbon dioxide (CO2) sensor (0 - 5.0% vol), LCD display, 4-20 mA output, 24 VDC or VAC power, black ABS/PC water / dust tight enclosure, plug & play smart sensor technology 
CGAS-D-CO2-6
Internal infrared carbon dioxide (CO2) sensor (0 - 5,000 ppm), LCD display, field configurable BACnet® MS/TP or Modbus® RTU RS-485 output, 24 VDC or VAC power, black ABS/PC water / dust tight enclosure, plug & play smart sensor technology
CGAS-D-CO2-18
Internal infrared carbon dioxide (CO2) sensor (0 - 5% vol), LCD display, field configurable BACnet® MS/TP or Modbus® RTU RS-485 output, 24 VDC or VAC power, black ABS/PC water / dust tight enclosure, plug & play smart sensor technology
Factory Options
-RHT
RH and Temperature sensor *
-S
Splash guard, factory installed, IP54 rating
* NOTE: The analog models have one analog output. If an analog model is ordered with Option -RHT, the information is for display purposes only; the one analog output would be used for the gas readings, not the RH and temperature readings.

Options, Accessories and More...