Crowcon Sensitron SMART S-SS Gas Detector with Infrared Sensor
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Crowcon Sensitron SMART S-SS Gas Detector with Infrared Sensor
Designed to meet the toughest industrial standards, the SMART S-SS series gas detectors are used in classified areas (zone 1 and, if equipped with the dust adapter, zone 21).
The infrared sensor is used to detect flammable substances, refrigerant gases and carbon dioxide; it is not susceptible to poisoning and has high selectivity. The sensor is housed in a stainless steel head with a diameter of 47.5 mm. The detector has a 12-24 Vdc power supply, a 4-20 mA signal output and an RS485 signal.
The SMART S-SS is equipped with a display (LCD or LED) to monitor the concentration in real-time and Hall effect sensors for non-intrusive calibration in the field.
To adapt to the customer’s needs, the SMART S-SS detector has the following customization possibilities:
- Choice of the sensor head based on the gas to be detected
- Choice of a transmitter (3-relay board, HART modem)
- Choice of enclosure (aluminium/steel, number of entrances)
3A Transmitter – Exd Aluminum Enclosure
| Part Number | Description |
|---|---|
| SSS3A11 | Electronic with output RS485 + 4-20 mA, LCD display |
| SSS3A12 | Electronic with output RS485 + 4-20 mA, LED display |
| SSS3A13 | Electronic with output RS485 + 4-20 mA, LCD display, relay card |
| SSS3A14 | Electronic with output RS485 + 4-20 mA, LED display, relay card |
| SSS3A17 | Electronic with output RS485 + 4-20 mA, LCD display, relay card, Modem Hart |
| SSS3A18 | Electronic with output RS485 + 4-20 mA, LED display, relay card, Modem Hart |
4A Transmitter – Exd Aluminum Enclosure
| Part Number | Description |
|---|---|
| SSS4A11 | Electronic with output RS485 + 4-20 mA, LCD display |
| SSS4A12 | Electronic with output RS485 + 4-20 mA, LED display |
| SSS4A13 | Electronic with output RS485 + 4-20 mA, LCD display, 3-relay card |
| SSS4A14 | Electronic with output RS485 + 4-20 mA, LED display, 3-relay card |
| SSS4A17 | Electronic with output RS485 + 4-20 mA, LCD display, 3-relay card, Modem Hart |
| SSS4A18 | Electronic with output RS485 + 4-20 mA, LED display, 3-relay card, Modem Hart |
2S Transmitter – Stainless Steel Enclosure
| Part Number | Description |
|---|---|
| SSS2S11 | Electronic with output RS485 + 4-20 mA, LCD display |
| SSS2S12 | Electronic with output RS485 + 4-20 mA, LED display |
| SSS2S13 | Electronic with output RS485 + 4-20 mA, LCD display, 3-relay card |
| SSS2S14 | Electronic with output RS485 + 4-20 mA, LED display, 3-relay card |
| SSS2S17 | Electronic with output RS485 + 4-20 mA, LCD display, 3-relay card, Modem Hart |
| SSS2S18 | Electronic with output RS485 + 4-20 mA, LED display, 3-relay card, Modem Hart |
SMART S Heads – IRS Infrared Technology (Flammable Gases)
| Sensor Part Number | Description |
|---|---|
| S4019ME | METHANE sensor head, 0-100% LFL (full scale 4.4% vol) |
| S4001ME | METHANE sensor head, 0-100% LFL (full scale 5% vol) |
| S4004PR | PROPANE sensor head, 0-100% LFL |
| S4004BU | BUTANE sensor head, 0-100% LFL |
| S4004AT | ACETONE sensor head, 0-100% LFL |
| S4004BN | BUTADIENE sensor head, 0-100% LFL |
| S4004CE | CYCLO HEXANE sensor head, 0-100% LFL |
| S4004DT | DIMETHYL ETHER sensor head, 0-100% LFL |
| S4004EN | ETHANE sensor head, 0-100% LFL |
| S4004AE | ETHYL ACETATE sensor head, 0-100% LFL |
| S4004ET | ETHYL ALCOHOL sensor head, 0-100% LFL |
| S4004EP | HEPTANE sensor head, 0-100% LFL |
| S4004ES | HEXANE sensor head, 0-100% LFL |
| S4004IB | ISO BUTANE sensor head, 0-100% LFL |
| S4004IL | ISOBUTYLENE sensor head, 0-100% LFL |
| S4004IP | ISOPROPYL ALCOHOL sensor head, 0-100% LFL |
| S4004PE | PENTANE sensor head, 0-100% LFL |
| S4004PP | PROPYLENE sensor head, 0-100% LFL |
| S4004TO | TOLUENE sensor head, 0-100% LFL |
| S4004DE | R152a DIFLUOROETHANE sensor head, 0-100% LFL |
| S4157R454B | R454B sensor head, 0-100% LFL |
| S4065R32 | R32 DIFLUOROMETHANE sensor head, 0-100% LFL |
| S4066R1234YF | R1234yf sensor head, 0-100% LFL |
| S4067R1234ZE | R1234ze sensor head, 0-100% LFL |
SMART S Heads – SF6 & Refrigerant Gases
| S4152R32 | R32 sensor head, 0-2000 ppm |
| S4026R134A | R134a sensor head, 0-2000 ppm |
| S4027SF6 | SF6 sensor head, 0-2000 ppm |
| S4031R125 | R125 sensor head, 0-2000 ppm |
| S4032R1234YF | R1234yf sensor head, 0-2000 ppm |
| S4153R1234ZE | R1234ze sensor head, 0-2000 ppm |
| S4033R404A | R404A sensor head, 0-2000 ppm |
| S4034R407A | R407A sensor head, 0-2000 ppm |
| S4034R407F | R407F sensor head, 0-2000 ppm |
| S4154R449A | R449A sensor head, 0-2000 ppm |
| S4035R507A | R507A sensor head, 0-2000 ppm |
| S4036R410A | R410A sensor head, 0-2000 ppm |
| S4155R417A | R417A sensor head, 0-2000 ppm |
| S4156R448 | R448 sensor head, 0-2000 ppm |
SMART S Heads – Carbon Dioxide (CO2)
| S4015CO2 | CO2 sensor head, 0-2% Vol. |
| S4016CO2 | CO2 sensor head, 0-5% Vol. |
| S4017CO2 | CO2 sensor head, 0-30% Vol. |
Accessories
| STS/CKD+ | Enhanced calibration keypad with 7-digit display and SD-CARD slot for calibration and firmware update |
| STS/CKD-OLED | Advanced keypad with OLED display, graphical visualization, SD card logging and firmware update |
| Sensor | |
| Application | Industrial areas, ATEX Zone 1 and Zone 21 (if equipped with optional dust adapter) |
| Sensor | Infrared |
| Estimated sensor life | > 5 years |
| Gas detected and range |
0 – 100% LFL flammable gases 0 – 2000 ppm refrigerant gases 0-2%Vol; 0-5%Vol; 0-30%Vol; 0-100%Vol CO2 |
| Electrical parameters | |
| Power supply | 12-24 Vdc |
| Output | Analogue 4-20 mA output; RS485 serial output; 3 relay board (optional); HART modem (optional) |
| Maximum dissipated power | 5.4 W |
| Relays contact ratings | 1.0 A a 24 Vdc |
| Visual indications | LED or LCD display |
| Acoustic indications | – |
| Hall effect sensor | Three sensors for calibration by magnet |
| Environmental conditions | |
| Storage temperature | -40 / +85°C |
| Operating temperature |
-20 / +60°C * (LCD) -40 / +60°C * (LED) |
| Operating humidity | 20 / 90% RH @40°C * |
| Operating pressure | 86 / 120 kPa * |
| Air velocity | 6 m/s * |
| Response time | t90 < 60 s ; t50 < 20 s * |
| * Data tested according to EN 60079-29-1 standard | |
| External case | |
| Material |
Enclosure: die-cast aluminium with colour and chemically resistant epoxy paint
or electropolished SS316 stainless steel Sensor head: SS316 stainless steel |
| Protection mode |
Ex d : Explosion proof enclosure Ex t : Equipment dust ignition protection by enclosure (when equipped with optional dust adapter) |
| Dimensions |
145 x 187 x 110 mm (3A enclosure) 138 x 200 x 120 mm (4A enclosure) 155 x 210 x 124 mm (2S enclosure) |
| Weight |
1700 g (3A enclosure) 2800 g (4A enclosure) 4200 g (2S enclosure) |
| Cable entries | 2 or 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/EU 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 EN 50402:2017 |
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