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 |
| Sensor | |
|---|---|
| Application | Industrial area, ATEX Zone 1 and Zone 21 (when equipped with dust adapter, optional) |
| Sensing element | Electrochemical cell |
| Predicted sensor lifetime | 2 / 3 years |
| Gas detected | O2 [0-25% Vol], CO [0-500/1000 ppm], NH3 [0-100/200/1000/5000 ppm], H2S [0-50/100 ppm], NO [0 – 100 ppm]; H2 [0 – 2000/3000 ppm] |
| Electrical data | |
| Power supply | 12-24 Vdc |
| Output | Analogue 4-20 mA output; 1 or 3 relay board (optional); serial RS485 output (optional) |
| Maximum dissipated power | 5.4 W |
| Relays contact ratings | 1.0 A at 24 Vdc |
| Optical indications | Multi-colour LED light ring |
| Acoustic indications | – |
| Environmental conditions | |
| Storage temperature | 0 / +20°C up to 6 months |
| Operating temperature | -30 / +55°C |
| Operating humidity | 15 / 90% RH non condensing |
| Compliance | |
| EMC | EN 61000-6-3:2007 + A1:2011; EN 50270:2015 |
| ATEX |
ATEX directive 2014/34/EU EN IEC 60079-0:2018 EN 60079-1:2014 EN 60079-31:2014 |
| IECEx |
IEC 60079-0:2011 IEC 60079-1:2014 IEC 60079-31:2013 |
| SIL |
EN 61508:2010 Parti 1, 2, 3, 4, 5, 6, 7 EN50402:2017 |
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