Crowcon Sensitron SMART 3G-C2-LD Electrochemical Gas Detector

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Crowcon Sensitron SMART 3G-C2-LD Electrochemical Gas Detector

The SMART3G-C2-LD is supplied with an electrochemical sensor and is designed to meet industrial requirements. The enclosure is explosion-proof and can be installed in ATEX Zone 1. It can be used in Zone 21 when fitted with a dust adapter.

The sensing element is placed in the stainless steel head with a 48 mm diameter.

Due to the optimal performance in these applications, the electrochemical cell is used to detect toxic gas.

The gas detector has a 12-24 Vdc power supply, a standard 4-20 mA 3-wires output, and three relays. Optionally, the SMART3G-C2-LD can be equipped with serial RS485 communication.

The aluminium enclosure has dimensions 145 x 187 x 108 mm. The enclosure has three cable entries that are 3/4” NPT threaded. The multi-colour LED light ring assures an immediate visual indication of the detector status.

The SMART3G-C2-LD is SIL2 hardware and SIL3 software with a redundant system; the hardware is SIL3.

SMART3G-C2-LD – TOXIC GASES (Electrochemical Cell)

Model Description
S2641O2-LD OXYGEN (O2) detector, 0-25% Vol., 4-20 mA
S2131CO-LD CARBON MONOXIDE (CO) detector, 0-500 ppm, 4-20 mA
S2586CO-LD CARBON MONOXIDE (CO) detector, 0-1000 ppm, 4-20 mA
S3225AM-LD AMMONIA (NH3) detector, 0-100 ppm, 4-20 mA
S2133AM-LD AMMONIA (NH3) detector, 0-200 ppm, 4-20 mA
S2135AM-LD AMMONIA (NH3) detector, 0-1000 ppm, 4-20 mA
S3229AM-LD AMMONIA (NH3) detector, 0-5000 ppm, 4-20 mA
S2137HS-LD HYDROGEN SULPHIDE (H2S) detector, 0-50 ppm, 4-20 mA
S3708HS-LD HYDROGEN SULPHIDE (H2S) detector, 0-100 ppm, 4-20 mA
S2145NO-LD NITRIC OXIDE (NO), 0-100 ppm, 4-20 mA
S3593H2-LD HYDROGEN (H2) detector, 0-2000 ppm, 4-20 mA
S4547H2-LD HYDROGEN (H2) detector, 0-3000 ppm, 4-20 mA
S3004SD-LD SULPHUR DIOXIDE (SO2) detector, 0-20 ppm, 4-20 mA
S3008ND-LD NITROGEN DIOXIDE (NO2) detector, 0-20 ppm, 4-20 mA
S3014CL-LD CHLORINE (CL2) detector, 0-20 ppm, 4-20 mA

Accessories

Model Description
STS/CSW+ Calibration software with USB key, USB/RS485 converter and STS/IDI card. Supports Windows XP, 7, 10. Allows threshold modification, range setting, and Zero/Span adjustment.
STS/IDI Plug-in interface for RS485 serial communication suitable for SMART3G
STS/CKD+ Enhanced calibration keypad with 7-digit display for Zero, Span and 4-20 mA adjustment
STS/CKD-OLED Calibration keypad with OLED display for graphical concentration visualization and adjustments
STGD/AD3 Adapter for sensor heads to upgrade protection from G to GD
RE21-PNA1KONK ATEX cable gland for non-armoured cables

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