Gas Sensor Replacement Sensor, Explosion-Proof

Sensor modules are designed, and approved for installation and operation in hazardous locations. They may be used stand alone or with the DVP-120 Control Panel.

5100-02-IT Combustible Gas Sensor

The 5100-02-IT Combustible Gas Sensor Module utilizes catalytic bead sensor  technology to monitor for combustible gases (methane and others). Output range is 0-100% of Lower Explosive Limit (LEL). Explosion proof, Class I, Div. 1,  Groups B, C, D Class I, Zone 1, Group IIC, IP66, IP65, NEMA 4X II2 GD, Ex d IIC T6  = -40C to 85C

5100-XX-IT Sensors

The 5100-XX-IT Toxic Gas Sensor Modules utilize electrochemical sensor  technology to monitor for a variety of toxic gases. Explosion proof, Class 1,  Div. I, Groups B, C, D Group IIB + H2 IP66, IP65, NEMA 4X.  Factory Mutual (FM) Approved for electrical safety and environmental parameters including Class I, Div. 1, Groups B, C, D and Class I, Zone 1, Group IIB+H2 IP66. The 5100-XX-IT is also SIL Certified and meets NFPA-72 requirements for gas detectors.

Sensor Types:

  • Ammonia (NH3), 0-100 PPM
  • Carbon Dioxide (CO2), 0-5000 PPM
  • Carbon Monoxide (CO), 0-500 PPM
  • Chlorine (CI), 0-10 PPM
  • Chlorine Dioxide (CIO2),  0-3 PPM
  • Hydrogen Chloride (HCI), 0-20 PPM
  • Hydrogen Fluoride (HF), 0-10 PPM
  • Hydrogen Sulfide (H2S), 0-100 PPM
  • Methane (CH4), 0-100% 
  • Nitrogen Dioxide (NO2), 0-20 PPM
  • Oxygen (O2), 5-25%
  • Sulfur Dioxide (SO2), 0-100 PPM

5100-28-IT Sensor

The 5100-28-IT Combustible Gas Sensor Module utilizes Infrared (IR)  Combustible Gas Sensor to monitor for combustible gases (methane and  others). Output Lower Explosive Limit (LEL) or % volume . Explosion proof,  Class 1, Div. I, Groups C, D Class I, Zone 1Group IIC, IP66, IP65, NEMA 4X, T6  TA = - 40oC to 85oC II2 GD, Ex d IICC

Common Features:

  • FM Approval for performance and safety
  • 6 month calibration interval
  • 12 month calibration interval (5100-28-IT Sensor)
  • SIL-2 certified
  • Modbus RTU RS-485 interface
  • 4-20 mA output
  • HART Interface
  • SMC Sentry digital bus interface
  • ATEX Certified
  • ATEX Approved (5100-05-IT)
  • IECEx Certified (5100-05-IT)
  • Optional Integral and Trouble alarm relays – Alarm, Warning and Trouble
  • Aluminum or 316 Stainless Steel enclosure
  • Non-intrusive calibration
  • Integral scrolling LED display
  • Optional remote sensor
  • Remote alarm reset capable
  • 90mA @ 24Vdc power consumption


NOTE: For facilitating regular calibration cycles, use the Calibration Gas Delivery Fitting when the Gas Sensor is mounted on a hard to reach area.

Gas Sensor Replacement Sensor, Explosion-Proof
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  • Item #: 5200-xx-IT
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Price $749.00

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