Oldham OLC100 / OLCT100 Fixed Gas Detectors


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The Oldham OLC100/OLCT 100 range of fixed gas detectors are perfectly suitable for the detection of explosive gases, toxic gases or oxygen depletion within industrial applications.

a1-cbiss have installed hundreds of OLCT 100 detectors across the UK making it the most popular fixed gas detector we sell.

Product Description


The 3M Oldham OLC/OLCT 100 range of fixed gas detectors are wall mounted for the detection of explosive gases, toxic gases or oxygen.

• 4-20 mA analogue gas transmitter without display
• SIL2 capability for LEL, O2, CO, H2S, NH3, CO2
• Detects combustible, toxic or refrigerant gases and O2
• Available with electrochemical, infrared or semiconductor sensors
• Designed for industrial applications
• Available in explosion-proof or intrinsically safe versions, and stainless steel
• New XP IR infrared sensor or catalytic sensor
• A high-temperature version allows operation up to 200°C

The Oldham products are always application-driven, solution-oriented. Options include;
• Oldham OLCT 100 gas transmitter with 4-20 mA output
• Oldham OLC 100 gas detector with a Wheatstone bridge output for detection of explosive gases.

OLCT 100 Gas Detector Versions

OLCT 100 XP: Explosion-proof version and equipped with a catalytic, electrochemical or semiconductor sensor, for detection of explosive, toxic gases or oxygen.

OLCT 100 IS: Intrinsically safe version and equipped with an electrochemical sensor for detection of toxic gases or oxygen.

OLCT 100 XP IR: The OLCT 100 XPIR has now been replaced by the OLCT 710 IR

OLCT 100 XP HT: High-temperature explosion-proof version, for detection of explosive gases up to 200°C.

Spares and Accessories

A full range of accessories are available for the OLCT-100 series inlcluding:

Calibration Cup 6331141

Tool Kit 6147879    

Catalytic Sensor 0-100LEL 6314010  

Sunshield 6123716      

Need fixed gas detection advice?

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