cGas Detector IR Refrigerant Transmitter
Non-dispersive infrared refrigerant gas detector with accurate, low level leak detection, available with analog output or BACnet® or Modbus® output and Plug & Play Smart Sensor Technology.
- Accurate, low level and high level leak detection
- Long life, non-dispersive infrared refrigerant sensor, dual beam technology
- Easy Plug & Play Smart Sensor replacement at end of life, comes pre-calibrated
- One linear 4-20 mA or 0-10V analog output or field configurable BACnet® MS/TP RS-485 or Modbus® RTU RS-485 digital output signal to a BAS
Description
The cGas Detector IR Refrigerant provides continuous monitoring of a wide range of refrigerant gases commonly used in commercial refrigeration systems. Dual beam, non-dispersive infrared sensor technology overcomes the limitations of solid state refrigerant sensors, accurately detects refrigerant gases without cross interference from toxic or combustible gases and is low maintenance with a longer lifespan. Choose from many types of refrigerant gas sensors commonly used in commercial refrigeration systems, including A2L refrigerants, SF6 and CO2 (R744). True Plug & Play Smart Sensor technology makes replacing sensors quick and easy.
The cGas Detector IR Refrigerant is available with analog output or digital output and comes with a relay and internal audible alarm. Powered by 24 VDC or ground referenced AC, it has an LCD display, temperature compensation, thermal resetting fuse and the firmware and configuration can be upgraded in the field using the USB connection. It 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.
Complies with refrigeration safety codes ASHRAE No 15-2024 and B-52:23.
Specifications
Target Gas
| Infrared Refrigerant Sensor | R22, R123, R134A, R143A, R227ea, R404A, R407A, R407C, R407F, R410A, R417A, R422A, R422D, R427A, R434A, R438A, R442A, R448A, R449A, R450A, R452A, R453A, R507, R513A, R514A, HFO1233zd, RSF6, Carbon Dioxide (R744) |
| A2L Infrared Refrigerant Sensor | R32, R454B, R1234yf, R1234ze |
Mechanical
| Enclosure | Black ABS / Polycarbonate, corrosion resistant, 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 (Standard) | 2-line by 16 character graphic LCD Operating Temp: 0°C to 40°C / 32°F to 104°F |
| Display (low temperature Option -LT) | 2-line by 16 character OLED display Operating Temp: -40°C to 40°C / -40°F to 104°F |
| 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 updates / firmware upgrades |
Input/Output
| Analog Output (CGAS-A models) | One linear 4 - 20 mA analog or 0-10 V (user configurable in the field) |
| Digital Output (CGAS-D models) | BACnet® MS/TP (version 1 rev 14) RS-485 or Modbus® RTU (version 1.1b3) RS-485 (user configurable in the field) |
| Relay | 1 SPDT relay rated 30 volts, 2 amp max |
| Audible Alarm | Internal buzzer, rated 90 dB @ 10 cm / 4 in, enable/disable |
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 16 - 18 AWG (or larger) shielded, stranded within conduit VAC 4-conductor shielded 16 - 18 AWG stranded within conduit |
| Digital Wiring (CGAS-D models) | VDC or VAC (ground referenced) 4-conductor 18 - 22 AWG twisted, shielded, stranded within conduit, network wiring (daisy-chain) |
| Fuse(s) | Automatic resetting thermal |
Environmental
| Operating Temperature | 0°C to 40°C (32°F to 104°F) temperatures below 0°C / 32°F requires Option-LT |
| Operating Humidity | 15 - 85% 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 RoHS compliant circuit boards |
Detected Gases
Documents
Application: AI Workload Zones & Tower Stacks - FCS and CGAS-D-IR
PDF • 3.8 MB • Application Guides
Application: Chiller Rooms - cGas-SC and CGAS-A-IR
PDF • 1.2 MB • Application Guides
Application: Chiller Rooms - FCS and CGAS IR
PDF • 933 KB • Application Guides
Application: Hotels - FCS and CGAS IR
PDF • 503 KB • Application Guides
Application: Refrigerant Shafts - FCS and CGAS-D-IR
PDF • 750 KB • Application Guides
A2L cGas Detectors Product Brochure
PDF • 2.6 MB • Brochures
cGas IR Refrigerant Detector Brochure
PDF • 760 KB • Brochures
BTL Listing (PICS) for cGas Family
PDF • 202 KB • Certifications
Controls Schematic: Refrigeration System - Central Panel
PDF • 801 KB • Controls Schematics
Controls Schematic: Refrigeration System - Central Panel
DWG • 1.3 MB • Controls Schematics
Controls Schematic: Refrigeration System - Standalone Units
DWG • 1.1 MB • Controls Schematics
Controls Schematic: Refrigeration System - Standalone Units
PDF • 402 KB • Controls Schematics
Calibration Clip "Cal Clip" Datasheet
PDF • 127 KB • Datasheets
cGas Detector IR Refrigerant Datasheet
PDF • 284 KB • Datasheets
cGas Detector VRF IR vs cGas Detector IR
PDF • 379 KB • Datasheets
Splash Guard (Option -S) Datasheet
PDF • 353 KB • Datasheets
Engineering Spec: Refrigeration Machinery Room - FCS and CGAS-D-IR
DOCX • 384 KB • Engineering Specs
Gas Detection Schedule: Refrigeration System - Central Panel
PDF • 171 KB • Gas Detection Schedules
Gas Detection Schedule: Refrigeration System - Central Panel
XLSX • 19 KB • Gas Detection Schedules
Gas Detection Schedule: Refrigeration System - Central Panel
DWG • 63 KB • Gas Detection Schedules
Gas Detection Schedule: Refrigeration System - Standalone Units
XLSX • 18 KB • Gas Detection Schedules
Gas Detection Schedule: Refrigeration System - Standalone Units
PDF • 169 KB • Gas Detection Schedules
Gas Detection Schedule: Refrigeration System - Standalone Units
DWG • 48 KB • Gas Detection Schedules
cGas Detector Installation Manual
PDF • 676 KB • Manuals
cGas Detector Operation Manual - firmware v2.05 onwards
PDF • 634 KB • Manuals
cGas Detector Operation Manual - up to firmware v2.04
PDF • 1.3 MB • Manuals
Internal Heater for Cold Environment Applications
PDF • 180 KB • Product Guides
Product Spec: CGAS-A-IR Infrared Refrigerant Sensors
PDF • 134 KB • Product Specs
Product Spec: CGAS-A-IR123 Infrared Refrigerant Sensor
PDF • 134 KB • Product Specs
Product Spec: CGAS-A-IR32-100 A2L Infrared Refrigerant Sensor
PDF • 134 KB • Product Specs
Product Spec: CGAS-A-IR454B-100 A2L Infrared Refrigerant Sensor
PDF • 134 KB • Product Specs
Product Spec: CGAS-D-ICH4 Methane Infrared Sensor
PDF • 134 KB • Product Specs
Product Spec: CGAS-D-IR Infrared Refrigerant Sensors
PDF • 136 KB • Product Specs
Product Spec: CGAS-D-IR123 Infrared Refrigerant Sensor
PDF • 142 KB • Product Specs
Product Spec: CGAS-D-IR32-100 A2L Infrared Refrigerant Sensor
PDF • 135 KB • Product Specs
Product Spec: CGAS-D-IR454B-100 A2L Infrared Refrigerant Sensor
PDF • 135 KB • Product Specs
ChillerSense Solution Guide
PDF • 2.7 MB • Compliance Guides
Video Library
How Does the Splash Guard (Option-S) Work
ASK THE EXPERTS - Gas Detection System: How It Works
ASK THE EXPERTS - Gas Detection System: Your Design
ASK THE EXPERTS - Gas Detector: How it Works
ASK THE EXPERTS - Gas Detector: Sensor Coverage
ASK THE EXPERTS - Gas Detector: Mounting Considerations
ASK THE EXPERTS - Gas Detection System: Interaction with VFD Fans
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Calibration Kits
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Calibration Gases
Cylinders of zero air and span gas for calibration
Splash Guard (Option -S)
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Replacement Sensors for cGas Product Line
Replacement Plug & Play Smart Sensor Boards for CGAS-A, CGAS-D, CGAS-AP, CGAS-DP, CGAS-SC and CGAS-SD models. Gas sensors have a lifespan which means they expire and need to be replaced.
cGas-SC Self-Contained Controller
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Certificate of Sensor Calibration
Provides detailed sensor calibration information. A Certificate of Sensor Calibration is available for customers who require detailed calibration information.