Crowcon Sensitron SMART 3G-C2-LD Infrared Gas Detector
- Home
- Products
Crowcon Sensitron SMART 3G-C2-LD Infrared Gas Detector
The SMART3G-C2-LD is equipped with an infrared 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.
The infrared sensors employed for flammable and refrigerant gas detection are poison-free, with high accuracy and a long lifetime.
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 – Flammable Gas (Infrared Sensor)
| Part Number | Gas Type | Output & Range |
|---|---|---|
| S2624ME-LD | Methane | 4-20 mA, 0-100% LFL |
| S2654BU-LD | Butane | 4-20 mA, 0-100% LFL |
| S2654PR-LD | Propane | 4-20 mA, 0-100% LFL |
| S2654GP-LD | LPG | 4-20 mA, 0-100% LFL |
| S2654AT-LD | Acetone | 4-20 mA, 0-100% LFL |
| S2654BN-LD | Butadiene | 4-20 mA, 0-100% LFL |
| S2654CE-LD | Cyclo Hexane | 4-20 mA, 0-100% LFL |
| S2654DT-LD | Dimethyl Ether | 4-20 mA, 0-100% LFL |
| S2654EN-LD | Ethane | 4-20 mA, 0-100% LFL |
| S2654AE-LD | Ethyl Acetate | 4-20 mA, 0-100% LFL |
| S2654ET-LD | Ethyl Alcohol | 4-20 mA, 0-100% LFL |
| S2654EP-LD | Heptane | 4-20 mA, 0-100% LFL |
| S2654ES-LD | Hexane | 4-20 mA, 0-100% LFL |
| S2654IB-LD | Iso Butane | 4-20 mA, 0-100% LFL |
| S2654IL-LD | Isobutylene | 4-20 mA, 0-100% LFL |
| S2654IP-LD | Iso Propyl Alcohol | 4-20 mA, 0-100% LFL |
| S2654PE-LD | Pentane | 4-20 mA, 0-100% LFL |
| S2654PP-LD | Propylene | 4-20 mA, 0-100% LFL |
| S2654DE-LD | R152a | 4-20 mA, 0-100% LFL |
| S4433R454B-LD | R454B | 4-20 mA, 0-100% LFL |
| S4827R454C-LD | R454C | 4-20 mA, 0-100% LFL |
| S3425R32-LD | R32 | 4-20 mA, 0-100% LFL |
| S3429R1234YF-LD | R1234yf | 4-20 mA, 0-100% LFL |
| S3433R1234ZE-LD | R1234ze | 4-20 mA, 0-100% LFL |
SMART3G-C2-LD – CO₂ (Infrared Sensor)
| Part Number | Gas Type | Range |
|---|---|---|
| S3898CO2-LD | CO₂ | 0-5000 ppm |
| S2651CO2-LD | CO₂ | 0-2% Vol. |
| S2652CO2-LD | CO₂ | 0-5% Vol. |
| S2445CO2-LD | CO₂ | 0-30% Vol. |
| S2630CO2-LD | CO₂ | 0-100% Vol. |
SMART3G-C2-LD – SF₆ & Refrigerant Gases
| Part Number | Gas Type | Range |
|---|---|---|
| S3944R32-LD | R32 | 0-2000 ppm |
| S3596R134A-LD | R134a | 0-2000 ppm |
| S3599SF6-LD | SF6 | 0-2000 ppm |
| S3656R125-LD | R125 | 0-2000 ppm |
| S3657R1234YF-LD | R1234yf | 0-2000 ppm |
| S3948R1234ZE-LD | R1234ze | 0-2000 ppm |
| S3658R404A-LD | R404A | 0-2000 ppm |
| S3659R407A-LD | R407A | 0-2000 ppm |
| S3920R407F-LD | R407F | 0-2000 ppm |
| S3923R449A-LD | R449A | 0-2000 ppm |
| S3660R507A-LD | R507A | 0-2000 ppm |
| S3017R410A-LD | R410A | 0-2000 ppm |
| S3952R417A-LD | R417A | 0-2000 ppm |
| S3956R448-LD | R448 | 0-2000 ppm |
Accessories
| Part Number | Description |
|---|---|
| STS/CSW+ | Calibration software with USB key, USB/RS485 converter, and STS/IDI card |
| STS/IDI | RS485 plug-in communication interface |
| STS/CKD+ | Calibration keypad with 7-digit display |
| STS/CKD-OLED | Calibration keypad with OLED display and graphical visualization |
| STGD/AD3 | Adapter 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 | Infrared |
| Predicted Sensor Lifetime | >5 years |
| Gas Detected | Flammable, refrigerant and CO2 gases |
| Full Scale |
0 – 100% LFL flammable gas 0 – 2000 ppm refrigerant gas 0-2%Vol; 0-5%Vol; 0-30%Vol; 0-100%Vol CO2 |
| Electrical Data | |
| Power Supply | 12-24 Vdc |
| Output | Analogue 4-20 mA output; 3 relay board; 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 | -40 / +85°C |
| Operating Temperature | -40 / +60°C * |
| Operating Humidity | 20 / 90% RH @40°C * |
| Operating Pressure | 80 / 120 kPa * |
| Air Velocity | 6 m/s * |
| Time of Response | t90 < 60 s ; t50 < 20 s * |
| External Case | |
| Material |
Enclosure: aluminium pressure die-casting with epoxy paint chromating and chemically resistant Sensor head: stainless steel |
| Protection Mode |
Ex d : Explosion proof enclosure Ex t : Equipment dust ignition protection by enclosure (when equipped with dust adapter, optional) |
| Dimensions | 145 x 187 x 108 mm |
| Weight | 1900 g |
| Cable Entries | 3 x 3/4” NPT |
| IP Grade | IP65 |
| Compliance | |
| EMC | EN 61000-6-3:2007 + A1:2011; EN 50270:2015 |
| ATEX |
ATEX directive 2014/34/UE EN IEC 60079-0:2018 EN 60079-1:2014 EN 60079-31:2014 EN 60079-29-1:2016 |
| IECEx |
IEC 60079-0:2011 IEC 60079-1:2014 IEC 60079-31:2013 |
| SIL |
EN 61508:2010 Parts 1, 2, 3, 4, 5, 6, 7 EN50402:2017 |
Enquire About This Product
Get in touch with us to see how we can help you with your project