DatasheetThe Sensitron SMART 3G-C2 is a SIL2 certified fixed gas detector ideal for a variety of 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 & Sensor Options
- 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
- Choice of catalytic, infrared and electrochemical sensor options, customisable for your site needs
Rigorous Safety Standards
- Safety Integrity Level (SIL) certified, featuring SIL2 hardware and SIL3 software
- A redundant system with SIL3 hardware
- Capable of withstanding harsh environments
- IP65 rated
- Zero tracker to counteract possible drift
- Continuous self-diagnosis to ensure you’re always compliant
Specifications
| 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 chromating 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 board (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 | Refrigerant Type | |
| R152a | Infrared | F-gas |
| R454B | Infrared | F-gas |
| R32 | Infrared | F-gas |
| R134A | Infrared | F-gas |
| SF6 | Infrared | F-gas (Switchgear) |
| R125 | Infrared | F-gas |
| R1234yf | Infrared | F-gas |
| R1234ze | Infrared | F-gas |
| R404A | Infrared | F-gas |
| R407A | Infrared | F-gas |
| R407F | Infrared | F-gas |
| R449A | Infrared | F-gas |
| R507 | Infrared | F-gas |
| R410A | Infrared | F-gas |
| R417A | Infrared | F-gas |
| R448 | Infrared | F-gas |
| R290 | Infrared | Natural Refrigerant |
| R600a | Infrared | Natural Refrigerant |
| R717 | Electrochemical/Catalytic | Natural Refrigerant |
| R744 | Infrared | Natural Refrigerant |