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Product Features
- Detect more than 50 gases
- Suited to harsh environments
- Ongoing system self-diagnosis
- Optional relay output and RS485 interface
- Optional interface for ATEX II2GD approval
Delivery options
At Cadmus Products, we prioritise efficient order delivery and offer competitive shipping rates worldwide. Our streamlined process ensures clarity and reliability for all your shipping requirements.
- We handle consignments of various sizes across the UK and globally, primarily using DHL, but may select other couriers for specific needs.
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The Crowcon SMART 3G-C2 Fixed Gas Detector has sensor options for detecting more than 50 toxic, flammable and refrigerant gases. It is ideal for a variety of industrial applications and harsh environments. The device also features ongoing system self-diagnosis and optional RS485 interface for Modbus communication.
- ▪ The SMART 3G-C2 has options for the detection of over 50 flammable, toxic and refrigerant gases
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- ▪ Ideal for detection in classified areas, providing high performance in civil and industrial applications
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- ▪ Choice of catalytic, infrared and electrochemical sensor options, customisable for your site needs
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- ▪ Safety Integrity Level (SIL) certified, featuring SIL2 hardware and SIL3 software
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- ▪ A redundant system with SIL3 hardware
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- ▪ Capable of withstanding harsh environments
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- ▪ IP65 rated
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- ▪ Zero tracker to counteract possible drift
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- ▪ Continuous self-diagnosis to ensure you’re always compliant
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- ▪ Optional 1 or 3 relay output board
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- ▪ Optional RS485 interface for communication with Modbus protocol
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- ▪ Wide range of usable sensors to optimise gas detection according to your site needs
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- ▪ Wide choice of accessories for installation and maintenance
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- ▪ Easy sensor replacement
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- ▪ Exportable data logger exportable with STS/CKD-OLED or STS/CSW+
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Flexible Installation Options:
Rigorous Safety Standards:
The SMART 3G-C2 is a SIL2-certified fixed gas detector ideal for various industrial applications, capable of monitoring toxic, flammable and refrigerant gases in harsh environments and classified areas.
ATEX Category 2 certified for Zone 1, the SMART3G-C2 has been designed to offer high performance for civil and industrial applications.
The SMART3G-C2 has a range of sensor options for the detection of over 50 flammable, toxic and refrigerant gases, and with ongoing system self-diagnosis, you can be confident that your setting is safeguarded from build-up of dangerous gasses. The SMART 3G-C2 also monitors for the detection of oxygen deficiency or excess and allows for field calibration via the STS/CKD+ calibration hand-held keypad.
Variety of Gas and Sensor Options:
| with catalytic sensor | with electrochemical sensor | intrinsically safe detector | |
| Size | H120 x W184 x D90 mm (4.7 x 7.2 x 3.5ins) | H138 x W200 x D119 mm (5.4 x 7.9 x 4.7ins) | |
| Weight | 1.25kg | 2.7kg | |
| Enclosure material | Aluminium pressure die-casting with epoxy paint chromatin and chemically resistant | ||
| Ingress Protection | IP65 | ||
| Connection | 3 x 3/4” NPT | ||
| Power | 12-24 Vdc | ||
| Electrical output | Analogue 4-20 mA output; 1 or 3 relay boards (optional); serial RS485 output (optional) | ||
| Operating temperature | -40 / +60°C | -30 / +55°C | -20 / +50°C |
| Humidity | 20 / 90% RH @40°C | 15 / 90% RH non-condensing | 15 / 90% RH non-condensing |
| Response time | t90 < 60 s ; t50 < 20 s | ||
| Functional safety | SIL2 hardware and SIL3 software | ||
| Approvals | EMC, ATEX, IECEx | ||
Gases
| Sensor type | |
| Acetic Acid (CH3COOH) | Catalytic sensor |
| Acetone (C3H6O) | Catalytic sensor / Infrared sensor |
| Acetylene (C2H2) | Catalytic sensor |
| Ammonia (NH3) | Catalytic sensor / Electrochemical sensor |
| Benzene (C6H6) | Catalytic sensor |
| Butadiene (C4H6) | Infrared sensor |
| Butane (C4H10) | Catalytic sensor / Infrared sensor |
| Carbon Monoxide (CO) | Catalytic sensor / Electrochemical sensor |
| Chlorine (CL2) | Electrochemical sensor (intrinsically safe detector) |
| Cyclohexane (C6H12) | Catalytic sensor / Infrared sensor |
| Cyclopentane (C5H10) | Catalytic sensor |
| Dimethyl ether (C2H6O) | Infrared sensor |
| Ethane (C2H6) | Catalytic sensor / Infrared sensor |
| Ethanol (C2H6O) | Catalytic sensor / Infrared sensor |
| Ethyl Acetate (C4H8O2) | Catalytic sensor / Infrared sensor |
| Ethyl Ether ((C2H5)2O) | Catalytic sensor |
| Ethylene (C2H4) | Catalytic sensor |
| Ethylene Oxide (C2H4O) | Catalytic sensor |
| Heptane (C7H16) | Catalytic sensor / Infrared sensor |
| Hexane (C6H14) | Catalytic sensor / Infrared sensor |
| Hydrogen (H2) | Catalytic sensor / Electrochemical sensor |
| Hydrogen Cyanide (HCN) | Electrochemical sensor (intrinsically safe detector) |
| Hydrogen Sulphide (H2S) | Electrochemical sensor |
| ISO Butane (C4H10) | Catalytic sensor / Infrared sensor |
| ISO Butyl Alcohol ((CH3)2CHCH2OH) | Catalytic sensor |
| ISO Pentane (C5H12) | Catalytic sensor |
| ISO Propyl Alcohol (C3H8O) | Catalytic sensor / Infrared sensor |
| Isobutylene (C4H8) | Infrared sensor |
| JP8 | Catalytic sensor |
| LPG | Catalytic sensor / Infrared sensor |
| Methane (CH4) | Catalytic sensor / Infrared sensor |
| Methanol (CH3OH) | Catalytic sensor |
| Methyl Ethyl Ketone (MEK) | Catalytic sensor |
| Nitric Oxide (NO) | Electrochemical sensor |
| Nitrogen Dioxide (NO2) | Electrochemical sensor (intrinsically safe detector) |
| Nonane (C9H20) | Catalytic sensor |
| Oxygen (O2) | Electrochemical sensor |
| Pentane (C5H12) | Catalytic sensor / Infrared sensor |
| Petrol Vapours | Catalytic sensor / Infrared sensor |
| Propane (C3H8) | Catalytic sensor / Infrared sensor |
| Propyl alcohol (C3H8O) | Catalytic sensor |
| Propylene (C3H6) | Catalytic sensor / Infrared sensor |
| Styrene (C8H8) | Catalytic sensor |
| Sulphur Dioxide (SO2) | Electrochemical sensor (intrinsically safe detector) |
| Toluene (C7H8) | Catalytic sensor |
| Tri-Methylbenzene (C9H12) | Catalytic sensor |
| Vinyl Acetate (C4H6O2) | Catalytic sensor |
| Xylene (C8H10) | Catalytic sensor |
Refrigerants
| Sensor type | |
| R152a | Infrared sensor |
| R454B | Infrared sensor |
| R32 | Infrared sensor |
| R134A | Infrared sensor |
| SF6 | Infrared sensor |
| R125 | Infrared sensor |
| R1234YF | Infrared sensor |
| R1234ZE | Infrared sensor |
| R404A | Infrared sensor |
| R407A | Infrared sensor |
| R407F | Infrared sensor |
| R449A | Infrared sensor |
| R507 | Infrared sensor |
| R410A | Infrared sensor |
| R417A | Infrared sensor |
| R448 | Infrared sensor |
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