Crowcon Sensitron SMART S-SS Gas Detector with Electrochemical Cell
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Crowcon Sensitron SMART S-SS Gas Detector with Electrochemical Cell
Designed to meet the toughest industrial standards, the SMART S-SS series gas detectors are used to detect, in classified areas (zone 1 and, if equipped with the dust adapter, zone 21), the presence of toxic substances (ppm).
The premium electrochemical cell is used as a sensing element for the reading of toxic gases, which is well suited for detecting substances at low concentrations. 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 has 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 (ECS Premium Electrochemical Cell)
| Sensor Part Number | Description |
|---|---|
| S4005O2 | OXYGEN (O2) sensor head, 0-25% Vol. |
| S4166CO | CARBON MONOXIDE (CO) sensor head, 0-100 ppm |
| S4006CO | CARBON MONOXIDE (CO) sensor head, 0-500 ppm |
| S4021CO | CARBON MONOXIDE (CO) sensor head, 0-1000 ppm |
| S4022AM | AMMONIA (NH3) sensor head, 0-100 ppm |
| S4007AM | AMMONIA (NH3) sensor head, 0-200 ppm |
| S4008AM | AMMONIA (NH3) sensor head, 0-1000 ppm |
| S4009HS | HYDROGEN SULPHIDE (H2S) sensor head, 0-50 ppm |
| S4028HS | HYDROGEN SULPHIDE (H2S) sensor head, 0-20 ppm |
| S4029HS | HYDROGEN SULPHIDE (H2S) sensor head, 0-100 ppm |
| S4010NO | NITRIC OXIDE (NO) sensor head, 0-100 ppm |
| S4089H2 | HYDROGEN (H2) sensor head, 0-1000 ppm |
| S4168H2 | HYDROGEN (H2) sensor head, 0-2000 ppm |
| S4169H2 | HYDROGEN (H2) sensor head, 0-3000 ppm |
Accessories for SMART3G-C3 Gas Detectors
| Part Number | Description |
|---|---|
| STS/CKD+ | Enhanced calibration keypad with 7-digit display and SD-CARD slot for Zero, Span and 4-20 mA adjustments and firmware update |
| STS/CKD-OLED | Advanced calibration keypad with OLED display, graphical concentration visualization, data logging via SD card and firmware update capability |
| Sensor | |
| Application | Industrial areas, ATEX Zone 1 and Zone 21 (if equipped with optional dust adapter) |
| Sensor | Electrochemical cell |
| Estimated sensor life | 2 / 3 years |
| Gas detected and range | O2 [0-25% Vol], CO [0-100/500/1000 ppm], NH3 [0-100/200/1000 ppm], H2S [0-20/50/100 ppm], NO [0 – 100 ppm]; H2 [0 – 1000/2000/3000 ppm] |
| 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 | 0 / +20°C for a maximum of 6 months |
| Operating temperature |
-20 / +55°C (LCD) -30 / +55°C (LED) |
| Operating humidity | 15 / 90% RH non-condensing |
| 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 |
| 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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