Crowcon Sensitron SMART 3-R Gas Detector with Electrochemical Cell

Code: S4593O2
  • Toxic gas & O2
  • For safe area use
  • Polycarbonate case

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SMART3-R is developed to detect gases in non-classified areas, such as machinery rooms and laboratories.

Due to the optimal performance in these applications, an electrochemical cell detects toxic gases. Four smart LEDs illuminate the transparent ring to describe the detector status, and an internal buzzer is activated in alarm and fault conditions.

The SMART3-R gas detector has a standard 12-24 Vdc power supply, but a 220 Vac version can be supplied. The gas detector has three relay outputs, an RS485 serial communication and an analogue 4-20 mA output (not in the 220 Vac version).

The polycarbonate case has a global size of 130 x 130 x 74 mm. The box has two entries with M20 cable glands. Pre-formed guides can be drilled on the sides to add up to 6 M16 cable glands.

The gas detector can have a remote head connected with a RJ12 6P6C cable.

Order Information

SMART 3-R – TOXIC GASES (Electrochemical cell)
S4593O2 OXYGEN (O2) detector, 0-25% Vol., 4-20 mA
S4595CO CARBON MONOXIDE (CO) detector, 0-500 ppm, 4-20 mA
S4597AM AMMONIA (NH3) detector, 0-100 ppm, 4-20 mA
S4598AM AMMONIA (NH3) detector, 0-200 ppm, 4-20 mA
S4599AM AMMONIA (NH3) detector, 0-1000 ppm, 4-20 mA
S4634CL CHLORINE (Cl2) detector, 0-20 ppm, 4-20 mA
S4601HS HYDROGEN SULPHIDE (H2S) detector, 0-50 ppm, 4-20 mA
S4630SD SULPHUR DIOXIDE (SO2) detector, 0-20 ppm, 4-20 mA
S4632ND NITROGEN DIOXIDE (NO2) detector, 0-20 ppm, 4-20 mA
ACCESSORIES for SMART 3-R & SMART 3-R LITE
STS/IDI Plug-in RS485 interface to make SMART3NC series gas detectors communicate in Modbus protocol with MULTISCAN++S1, MULTISCAN 8+ & STPL4+D control panels.
STS/CKD+ Enhanced calibration keypad with 7-digit display and SD-CARD slot. It can be connected to 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)

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    Title Size
    Smart3-R Electrochemical Datasheet 1 MB

    Additional information

    Weight 0.190 kg

    Specifications

    Sensor
    Application Machinery rooms, laboratories and non-classified areas
    Sensing element Electrochemical cell
    Predicted life sensor 2 / 3 years
    Gas detected O2 [0-25% Vol], CO [0-500 ppm], SO2 [0-20 ppm], NH3 [0-100/200/1000 ppm], Cl [0-20 ppm], H2S [0-50 ppm], NO2 [0 – 20 ppm]
    Electrical data
    Power supply 12-24 Vdc or 90-240Vac
    Signal output 3 relays; RS485 serial output, 4-20 mA analogue output (only for 12-24 Vdc version)
    Dissipated power 60 mA at 24Vdc
    Relays contact rating 1.0 A at 30 Vdc
    Optical indications 4 smart LED
    Acoustic indications Buzzer 63 dB @1mt
    Remote head cable RJ12 6P6C
    Environmental conditions
    Storage temperature 0 / +20°C up to 6 months
    Operating temperature -30 / +50°C
    Operating humidity 15 / 90% RH non condensing
    Compliance
    EMC EN 61000-6-3:2007 + A1:201; EN 50270:2015
    Electrical safety (90-240 Vac version) EN 61010-1: 2010 / A1: 2019
    Refrigeration Standards EN 378-3; EN 14624; EN 50676; IEC 60335-2-40 Annex LL; ISO 5149-3; F-Gas Regulation
    External case
    Material Polycarbonate
    Dimensions Box: 120 x 120 x 52 mm
    Cover: 130 x 130 x 22 mm
    Remote head box: 106 x 106 x 56 mm
    Maximum length of remote head’s cable: 5 m
    Weight Detector: 450 g
    Remote head: 300 g
    Cable entry 2 entries with M20 cable glands
    6 optional entries for M16 cable glands
    IP Grade IP42

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