• Compatible with Automatic Remote Gas Calibrator (ARGC)
  • Event logging
  • HART and Modbus communications
  • 4-20 mA analog current output
  • Warning, Alarm & Fault Relays
  • Calibration, Calibration Check, Setup Modes
  • Remaining sensor life indication
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Model GT-CT8900, Fixed type Catalytic combustible gas sensor, engineered specifically for detecting combustible gas (Methane) and vapor. The sensor is housed together in an explosion-proof enclosure complete with status display, which consists of three high-brightness nixie tubes and four status indicators for gas concentration readings and status conditions. In addition, a sensor life indication function is provided for ease of maintenance and improves instrument reliability. GT-CT8900 provides various output interfaces which includes 4-20 mA current output, three sets of Normally Open Contacts for Warning/Alarm/Fault status, two sets of communication interfaces for RS485 and HART interfaces.


Sensor Type :

Continuous diffusion,low temperature catalytic bead

Sensor Life :

3 to 5 years typical

Measuring Ranges :

0-100% LEL

Accuracy :

±3% LEL 0- 50% LEL; ±5% LEL; 50-100% LEL

Response Time :

T50 <10 s T90 <30 s with 100% LEL

methane applied;(T90 ≤18s Typical Value)

Zero Drift :

Less than 5% of full scale per year

Modes :

Calibration, gas check, setup

Electrical Classification :

ATEX II 2G Ex db IIC T6 Gb IP66
(Tamb = -40°C to +70°C)
SIL2 Certified


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