The Sensitron SMART3G-C3 gas detector is designed to meet industrial requirements. Its enclosure is explosion-proof and can be installed in ATEX Zone 2 and, when equipped with a dust adapter, Zone 22.

The sensing element is placed in the stainless steel head with a 40 mm diameter.

The infrared sensors employed for flammable and refrigerant gas detection are poison-free, have high accuracy, and have a long lifetime.

The gas detector has a 12-24 Vdc power supply and a standard 4-20 mA 3-wire output. Optionally, the SMART3G-C3 can be equipped with serial RS485 communication and a 1 or 3 relay board.

The enclosure measures 106 x 160 x 62 mm and has an M20 cable gland on the upper side.

Order Information

SMART3G-C3 – Flammable Gas (Catalytic Sensor)

Part Number	Description
CR2096ME	METHANE detector, 4-20 mA, 0-100% LFL
CR2096GP	LPG detector, 4-20 mA, 0-100% LFL
CR2096BU	BUTANE detector, 4-20 mA, 0-100% LFL
CR2096PR	PROPANE detector, 4-20 mA, 0-100% LFL
CR2096VB	PETROL VAPOURS detector, 4-20 mA, 0-100% LFL
CR2096H2	HYDROGEN detector, 4-20 mA, 0-100% LFL

SMART3G-C3 – Flammable Gas (Infrared Sensor)

CR2623ME	METHANE detector, 4-20 mA, 0-100% LFL
CR2653BU	BUTANE detector, 4-20 mA, 0-100% LFL
CR2653PR	PROPANE detector, 4-20 mA, 0-100% LFL
CR2653GP	LPG detector, 4-20 mA, 0-100% LFL
CR4432R454B	R454B detector, 4-20 mA, 0-100% LFL
CR3424R32	R32 DIFLUOROMETHANE detector, 4-20 mA, 0-100% LFL
CR3428R1234YF	R1234yf detector, 4-20 mA, 0-100% LFL
CR3432R1234ZE	R1234ze detector, 4-20 mA, 0-100% LFL

SMART3G-C3 – Toxic Gases (Electrochemical Cell)

CR2640O2	OXYGEN (O2) detector, 0-25% Vol., 4-20 mA
CR2130CO	CARBON MONOXIDE (CO) detector, 0-500 ppm, 4-20 mA
CR2130EL	ETHYLENE (C2H4) detector, 0-200 ppm
CR3224AM	AMMONIA (NH3) detector, 0-100 ppm, 4-20 mA
CR2132AM	AMMONIA (NH3) detector, 0-200 ppm, 4-20 mA
CR2134AM	AMMONIA (NH3) detector, 0-1000 ppm, 4-20 mA
CR3228AM	AMMONIA (NH3) detector, 0-5000 ppm, 4-20 mA
CR2136HS	HYDROGEN SULPHIDE (H2S) detector, 0-50 ppm, 4-20 mA
CR2144NO	NITRIC OXIDE (NO), 0-100 ppm, 4-20 mA
CR3592H2	HYDROGEN (H2) detector, 0-2000 ppm, 4-20 mA
CR4546H2	HYDROGEN (H2) detector, 0-3000 ppm, 4-20 mA

SMART3G-C3 – CO2 (Infrared Sensor)

CR2649CO2	CARBON DIOXIDE (CO2) detector, 0-2% Vol., 4-20 mA
CR2650CO2	CARBON DIOXIDE (CO2) detector, 0-5% Vol., 4-20 mA
CR2443CO2	CARBON DIOXIDE (CO2) detector, 0-30% Vol., 4-20 mA
CR2444CO2	CARBON DIOXIDE (CO2) detector, 0-5000 ppm, 4-20 mA
CR2629CO2	CARBON DIOXIDE (CO2) detector, 0-100% Vol., 4-20 mA

SMART3G-C3 – VOC Detectors (PID Sensors)

CR3540IL	VOC detector, 0-20 ppm, 4-20 mA (Isobutylene)
CR3544IL	VOC detector, 0-200 ppm, 4-20 mA (Isobutylene)
CR5121IL	VOC detector, 0-2000 ppm, 4-20 mA (Isobutylene)

SMART3G-C3 – SF6 & Refrigerant Gases (Infrared Sensor)

CR3942R32	R32 detector, 0-2000 ppm, 4-20 mA
CR3595R134A	R134a detector, 0-2000 ppm, 4-20 mA
CR3598SF6	SF6 detector, 0-2000 ppm, 4-20 mA
CR3020R125	R125 detector, 0-2000 ppm, 4-20 mA
CR3021R1234YF	R1234yf detector, 0-2000 ppm, 4-20 mA
CR3025R1234ZE	R1234ze detector, 0-2000 ppm, 4-20 mA
CR3022R404A	R404A detector, 0-2000 ppm, 4-20 mA
CR3023R407A	R407A detector, 0-2000 ppm, 4-20 mA
CR3918R407F	R407F detector, 0-2000 ppm, 4-20 mA
CR3921R449	R449 detector, 0-2000 ppm, 4-20 mA
CR3024R507A	R507A detector, 0-2000 ppm, 4-20 mA
CR3016R410A	R410A detector, 0-2000 ppm, 4-20 mA
CR3950R417A	R417A detector, 0-2000 ppm, 4-20 mA
CR3954R448	R448 detector, 0-2000 ppm, 4-20 mA