GMI OLC100 / OLCT100 Fixed Gas Detector

GMI OLC100 & OLCT100 Gas Detector

The GMI OLC100 and OLCT100 are fixed gas detectors designed to monitor flammable, toxic, and coolant gases, as well as oxygen. (O₂) in industrial environments. Built for reliable operation in challenging applications, they provide continuous gas sensing to help protect personnel, equipment, and facilities from dangerous conditions.

The OLC100 features a Wheatstone bridge output, while the OLCT100 provides a standard 4-20mA analogue output for easy integration with gas detection control systems. Furthermore, the detector is available with a range of sensor technologies, including electrochemical, infrared, catalytic, and semiconductor sensors, making engineers able to select the best method for each application.

For environments where catalytic sensors may be affected by contaminants or poisons, the detector can be fitted with the XP IR infrared sensor, providing reliable gas detection and long-term stability. In addition, a high temperature version is available for applications with operating temperatures of up to 200°C.

Key Features

• Available as OLC100 (Wheatstone bridge output) or OLCT100 (4-20mA output)
• Detects flammable, toxic, and coolant gases, as well as oxygen.
• Suitable for industrial applications
• Available with electrochemical, infrared, catalytic, or semiconductor sensors
• Optional XP IR infrared sensor for poisoned catalyst environments
• SIL2 capable for:
  • LEL
  • Oxygen (O₂)
  • Carbon Monoxide (CO)
  • Hydrogen Sulphide (H₂S)
  • Ammonia (NH₃)
  • Carbon Dioxide (CO₂)
• Offered in both flameproof and energy-limited configurations.
• Stainless steel models available for harsh environments
• High-temperature version operates up to 200°C
• Easy integration with gas detection control systems

Typical Applications

• Oil and gas facilities
• Chemical plants
• Refineries
• Power generation facilities
• Industrial processing plants
• Refrigeration systems
• Utility and plant rooms