Crowcon Sensitron SMART 3-R Gas Detector with Infrared Sensor

Code: S4591ME
  • Flammable, refrigerant & CO2
  • 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.

An infrared sensor detects flammable and refrigerant gases thanks to its high reliability and selectivity. 4 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 – FLAMMABLE GASES (Infrared sensor)
S4591ME METHANE detector, 4-20 mA, 0-100% LFL
S4592PR PROPANE detector, 4-20 mA, 0-100% LFL
S4592BU BUTANE detector, 4-20 mA, 0-100% LFL
S4592DE R152a detector, 4-20 mA, 0-100% LFL
S4629R454B R454B detector, 4-20 mA, 0-100% LFL
S4626R32 R32 DIFLUOROMETHANE detector, 4-20 mA, 0-100% LFL
S4627R1234YF R1234yf detector, 4-20 mA, 0-100% LFL
S4628R1234ZE R1234ze detector, 4-20 mA, 0-100% LFL
SMART 3-R – CO2 (Infrared sensor)
S4606CO2 CARBON DIOXIDE (CO2) detector, 0-2% Vol., 4-20 mA
S4607CO2 CARBON DIOXIDE (CO2) detector, 0-5% Vol., 4-20 mA
S4608CO2 CARBON DIOXIDE (CO2) detector, 0-30% Vol., 4-20 mA
S4610CO2 CARBON DIOXIDE (CO2) detector, 0-5000ppm, 4-20 mA
SMART 3-R –REFRIGERANT GASES (Infrared sensor)
S4638R32 R32 detector, 0-5000 ppm, 4-20 mA
S4639R134A R134a detector, 0-5000 ppm, 4-20 mA
S4640R404A R404A detector, 0-5000 ppm, 4-20 mA
S4641R407C R407C detector, 0-5000 ppm, 4-20 mA
S4642R410A R410A detector, 0-5000 ppm, 4-20 mA
S4643R1234YF R1234yf detector, 0-5000 ppm, 4-20 mA
S4644R1234ZE R1234ze detector, 0-5000 ppm, 4-20 mA
S4857R1233ZD R1233Zd detector, 0-5000 ppm, 4-20 mA
S4611R32 R32 detector, 0-2000 ppm, 4-20 mA
S4612R134A R134A detector, 0-2000 ppm, 4-20 mA
S4613SF6 SF6 detector, 0-2000 ppm, 4-20 mA
S4614R125 R125 detector, 0-2000 ppm, 4-20 mA
S4615R1234YF R1234yf detector, 0-2000 ppm, 4-20 mA
S4616R1234ZE R1234ze detector, 0-2000 ppm, 4-20 mA
S4617R404A R404A detector, 0-2000 ppm, 4-20 mA
S4618R407A R407A detector, 0-2000 ppm, 4-20 mA
S4619R407F R407F detector, 0-2000 ppm, 4-20 mA
S4620R449A R449A detector, 0-2000 ppm, 4-20 mA
S4621R507A R507A detector, 0-2000 ppm, 4-20 mA
S4622R410A R410A detector, 0-2000 ppm, 4-20 mA
S4623R417A R417A detector, 0-2000 ppm, 4-20 mA
S4624R448 R448 detector, 0-2000 ppm, 4-20 mA
ACCESSORIES for SMART 3-R & SMART 3-R LITE
STS/IDI Plug-in RS485 interface makes 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 Infrared Datasheet 1 MB

Additional information

Weight 0.190 kg

Specifications

Sensing element
Application Machinery rooms, laboratories and non-classified areas
Sensing element Infrared
Predicted life sensor 5 years
Gas detected CH4; C3H8; C4H10; R152a; R454B; R32; R1234YF; R1234ZE; R134a; R404A; R407C; R410A; SF6; R125; R407A; R407F; R449A; R507A; R417A; R448; CO2; R1233ZD
Fullscale 0 – 100% LFL for flammable gases
0 – 5000 ppm o 0 – 2000 ppm for refrigerant gases
0-5000 ppm; 0-2%Vol; 0-5%Vol; 0-30%Vol for CO2
Accuracy ±1% fullscale for readings < 25% fullscale
±2% fullscale for readings < 50% fullscale
±5% fullscale for readings > 50% fullscale
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 110 mA at 24 Vdc
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 -40 / +85°C
Operating temperature -40 / +60°C
12-24 Vdc version -10 / +50°C infred sensor for ppm refrigerant gases
Operating temperature -40 / +50°C
230V version -10 / +50°C infred sensor for ppm refrigerant gases
Operating humidity 0 / 95% 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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