Crowcon Sensitron SMART 3G-C2-LD Catalytic Gas Detector

Code: S2155ME-LD
  • Flammable/Combustible gas detection
  • Designed for Industrial areas
  • Approval ATEX Zone 1 & Zone 21

In StockMake An Enquiry

The Sensitron SMART3G-C2-LD gas detector is designed to meet industrial requirements; the enclosure is explosion-proof and can be installed in ATEX Zone 1 and, when equipped with a dust adapter, in Zone 21.

The sensing element is housed in the stainless steel head. The pellistor sensors employed for flammable gas detection show an excellent output linearity of up to 100% LEL and a fast response time.

The gas detector has a 12-24 Vdc power supply, a standard 4-20 mA 3-wires output, and three relays. Optionally, the SMART3G-C2-LD can be equipped with serial RS485 communication.

The aluminium enclosure has dimensions 145 x 187 x 108 mm. The enclosure has three cable entries that are 3/4” NPT threaded. The multi-colour LED light ring assures an immediate visual indication of the detector status.

The SMART3G-C2-LD is SIL2 hardware and SIL3 software with a redundant system; the hardware is SIL3.

Order Information

SMART3G-C2-LD – FLAMMABLE GAS (Catalytic sensor)
S2155ME-LD METHANE detector, 4-20 mA, 0-100% LFL
S2155GP-LD LPG detector, 4-20 mA, 0-100% LFL
S2155BU-LD BUTANE detector, 4-20 mA, 0-100% LFL
S2155PR-LD PROPANE detector, 4-20 mA, 0-100% LFL
S2155VB-LD PETROL VAPOURS detector, 4-20 mA, 0-100% LFL
S2155AA-LD ACETIC ACID detector, 4-20 mA, 0-100% LFL
S2155AT-LD ACETONE detector, 4-20 mA, 0-100% LFL
S2151AC-LD ACETYLENE detector, 4-20 mA, 0-100% LFL
S2155AM-LD AMMONIA detector, 4-20 mA, 0-100% LFL
S2155BZ-LD BENZENE detector, 4-20 mA, 0-100% LFL
S2155AB-LD BUTYL ACETATE detector, 4-20 mA, 0-100% LFL
S2155BT-LD BUTYL ALCOHOL detector, 4-20 mA, 0-100% LFL
S2155CE-LD CYCLOHEXANE detector, 4-20 mA, 0-100% LFL
S2155CP-LD CYCLOPENTANE detector, 4-20 mA, 0-100% LFL
S2155EN-LD ETHANE detector, 4-20 mA, 0-100% LFL
S2155AE-LD ETHYL ACETATE detector, 4-20 mA, 0-100% LFL
S2155ET-LD ETHYL ALCOHOL detector, 4-20 mA, 0-100% LFL
S2155EE-LD ETHYL ETHER detector, 4-20 mA, 0-100% LFL
S2155EL-LD ETHYLENE detector, 4-20 mA, 0-100% LFL
S2155OE-LD ETHYLENE OXIDE (ETO) detector, 4-20 mA, 0-100% LFL
S2155EP-LD HEPTANE detector, 4-20 mA, 0-100% LFL
S2155ES-LD HEXANE detector, 4-20 mA, 0-100% LFL
S2155H2-LD HYDROGEN detector, 4-20 mA, 0-100% LFL
S2155IB-LD ISO BUTANE detector, 4-20 mA, 0-100% LFL
S2155IT-LD ISO BUTYL ALCOHOL detector, 4-20 mA, 0-100% LFL
S2155IN-LD ISO PENTANE detector, 4-20 mA, 0-100% LFL
S2155IP-LD ISO PROPYL ALCOHOL detector, 4-20 mA, 0-100% LFL
S2154P8-LD JP8 (JET PROPELLER) detector, 4-20 mA, 0-100% LFL
S2155MT-LD METHYL ALCOHOL detector, 4-20 mA, 0-100% LFL
S2155MK-LD METHYL ETHYL KETONE detector, 4-20 mA, 0-100% LFL
S2155NN-LD NONANE detector, 4-20 mA, 0-100% LFL
S2155PE-LD PENTANE detector, 4-20 mA, 0-100% LFL
S2155PP-LD PROPYLENE detector, 4-20 mA, 0-100% LFL
S2155PN-LD PROPYL ALCOHOL detector, 4-20 mA, 0-100% LFL
S2155ST-LD STYRENE detector, 4-20 mA, 0-100% LFL
S2155TM-LD TRI-METHYLBENZENE detector, 4-20 mA, 0-100% LFL
S2155TO-LD TOLUENE detector, 4-20 mA, 0-100% LFL
S2155XI-LD XYLENE detector, 4-20 mA, 0-100% LFL
S2155AV-LD VINYL ACETATE detector, 4-20 mA, 0-100% LFL
ACCESSORIES
STS/CSW+ Calibration software for SMART3G, SMART3NC & SMART3R detectors consisting of a USB key, a USB/RS485 converter and the STS/IDI card. The software runs on Windows XP, Windows 7 e Windows 10. The calibration software allows the modification of the alarm thresholds and the measuring range and adjusting the Zero, Span and 4-20 mA values via a user-friendly menu, either in situ or in the laboratory.
STS/IDI Plug-in interface for RS485 serial communication suitable for SMART3G
STS/CKD+ Enhanced calibration keypad with 7-digit display. It can be connected to SENSITRON’S SMART detectors to adjust the Zero, Span and 4-20 mA values.
STS/CKD-OLED Enhanced calibration keypad with OLED display. It can be connected to all SENSITRON’S SMART detectors to adjust the Zero, Span and 4-20 mA values. This version offers the visualization of the instantaneous concentration in graphic format.
STGD/AD3 Adapter for all sensor heads (exception made for S2096__ & S2097__) to upgrade the protection from G to GD
RE21-PNA1KONK ATEX cable gland for non-armoured cables

Enquire About This Product

Title Size
SMART 3G-C2-LD Catalytic Datasheet 2 MB

Additional information

Weight 0.190 kg

Specifications

Sensor
Application Industrial area, ATEX Zone 1 and Zone 21 (when equipped with dust adapter, optional)
Sensing element Catalytic
Predicted sensor lifetime 4 / 5 years
Gas detected Flammable gas
Full scale 0 – 100% LFL
Electrical data
Power supply 12-24 Vdc
Output Analogue 4-20 mA output; 3 relay board; serial RS485 output (optional)
Maximum dissipated power 5.4 W
Relays contact ratings 1.0 A at 24 Vdc
Optical indications Multi-colour LED light ring
Acoustic indications
Environmental conditions
Storage temperature -40 / +85°C
Operating temperature -40 / +60°C *
Operating humidity 20 / 90% RH @40°C *
Operating pressure 80 / 120 kPa *
Air velocity 6 m/s *
Time of response t90 < 60 s ; t50 < 20 s *
* Data tested with tests described in EN 60079-29-1 standard
External case
Material Enclosure: aluminium pressure die-casting with epoxy paint chromating and chemically resistant
Sensor head: stainless steel
Protection mode Ex d : Explosion proof enclosure
Ex t : Equipment dust ignition protection by enclosure (when equipped with dust adapter, optional)
Dimensions 145 x 187 x 108 mm
Weight 1900 g
Cable entries 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/UE
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
EN50402:2017

Enquire About This Product