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Gas Detectors

Hydrogen Gas Monitor - CGas-SC Detector

Critical Environment Technologies Canada Inc.

  • Up to 3 gas channels with flexible internal and/or remote sensor configurations
  • Pre-calibrated Plug & Play Smart Sensor replacement at end of life
  • Easy access push buttons on the front of the enclosure for configuration and calibration
  • Field configurable BACnet® MS/TP RS-485 or Modbus® RTU RS-485 digital output signal to controller or BAS
  • Field selectable 4-20 mA outputs, 0-10V or 2-10V output

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Description Vendor

The cGas-SC Self Contained Detector is a versatile gas detection system designed for monitoring toxic, combustible, and refrigerant gases in commercial and light industrial, non-hazardous environments. It offers up to 3 gas channels with flexible internal and/or remote sensor configurations, allowing for customization based on specific application needs. The device can be used as a standalone monitoring unit or integrated into a larger gas detection system. It supports field configurable BACnet or Modbus outputs for communication with controllers or building automation systems (BAS). The cGas-SC features a 2x16 character LCD display with LED indicators for channel alarm status and fault conditions, along with intuitive menu navigation and password protection. It includes two SPDT dry contact relays with field configurable time delays and trigger levels, a horn and strobe connection, and an internal audible alarm. The device is available in standard and optional configurations, including low temperature operation, RH and temperature monitoring, side-mounted strobe, and water-tight or extra loud buzzer options. It is IP54 rated with a corrosion-resistant enclosure and supports dual voltage inputs with the Option -DV upgrade.

Use Cases

  • Typically used in hydrogen and related industrial applications

Capabilities

  • Up to 3 channels for toxic, combustible, and refrigerant gas monitoring.
  • Standalone monitoring device or part of larger gas detection system.
  • Accepts 4–20 mA analog inputs.
  • Field-configurable BACnet MS/TP RS-485 or Modbus RTU RS-485 output.
  • Two SPDT dry contact relays, horn/strobe terminal, internal buzzer, LCD/LED status display.
  • Optional RH/temperature sensor, low-temperature package, side strobe, buzzer options, splash guard, and dual-voltage line input option.
Critical Environment Technologies Canada Inc. Critical Environment Technologies Canada Inc. (CETCI), the largest independent commercial gas detection manufacturer in North America, has developed over 100 different gas detection products sold in more than 20 countries, including sensors for hydrogen among a wide range of hazardous gases. The company's ESH-A remote catalytic combustible hydrogen sensor (0-100% LEL range, ~5 year lifespan) integrates with CETCI's cGas digital transmitter and detector systems for continuous monitoring of hydrogen alongside carbon monoxide, hydrogen sulfide, sulfur dioxide, methane, propane, and other combustible or toxic gases. CETCI's gas detection controllers, self-contained systems, and Indoor Air Quality (IAQ) monitors serve commercial, institutional, municipal, and light industrial markets including parking facilities, refrigeration plants, manufacturing facilities, and maintenance facilities where hydrogen safety monitoring may be required. The company's gas detectors feature water/dust-tight housing with interior copper coating for RF interference reduction and conform to CSA, UL, CE, EMC, FCC, and IP54 standards for reliable operation in demanding environments.
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