Crowcon Sensitron SMART S-SS Gas Detector with Electrochemical Cell

Code: S4029HS
  • Toxic gas and O2
  • Designed for Industrial areas
  • Customisable

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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)

Order Information

3A Transmitter Exd Aluminum enclosure, electronics and features
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, electronics and features
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, electronics and features
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 FOR SMART S-SS & S-MS
ECS Premium Electrochemical Cell
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
STS/CKD+ Enhanced calibration keypad with 7-digit display and SD-CARD slot. It can be connected to all SMART detectors to adjust the Zero, Span and 4-20 mA values. Via the SD-CARD, it is also possible to update the detector’s firmware (feature not enabled on old SMART3G and NC detector)
STS/CKD-OLED Enhanced calibration keypad with OLED display and SD-CARD slot. It can be connected to all SMART detectors to adjust the Zero, Span and 4-20 mA values. This version offers enhanced features like: – visualization of the instantaneous concentration in graphic format; – possibility to monitor the detector trend and download the data stored in the SD-CARD – detector’s firmware update via SD-CARD (feature not enabled on old SMART3G and NC detector)

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Title Size
SmartS-SS Electrochemical Datasheet 10 MB

Additional information

Weight 0.190 kg

Specifications

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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