1/4 2/4 3/4 4/4 Gas Detectors SmArtGas 4 Product code: PW-044-SG4-X The SmArtGas 4 gas detector is specifically designed for critical functions such as measuring, monitoring and detecting hazardous gases. It is intended for operation in areas with potentially explosive atmospheres. See full description Functionalities: Certificates: Product description Technical details Supported gases The SmArtGas 4 gas detector is specifically designed for critical functions such as measuring, monitoring and detecting hazardous gases. It is intended for operation in areas with potentially explosive atmospheres. It can operate under harsh industrial conditions where environmental parameters may vary widely (high temperatures, corrosive gases or fumes, mist and dust). It can be installed in a variety of ways: either integrated into the Gas Safety System Sigma Gas, or installed as a stand-alone detector, or independently integrated with supervisory systems (e.g. by means of its 4..20 mA output signal or its RS-485 interface). The SmArtGas 4 detector has been developed to replace our earlier Sigma SmArt and SmArtGas3 devices. SmArtGas 4 is based on a completely new electronic design. It has a new measuring head (either ‘FL’ or ‘FH’) which is the fruit of a three year development. This new product offers greatly improved detection capabilities. A SmArtGas 4 detector equipped with a pellistor sensor now offers a halved response time (T90)* and is rated among the fastest devices available on the market. Further improvements include greater protection of the detector’s measurement head against environmental effects, including moisture and dust. This is achieved by means of a PTFE membrane, which enables levels of protection up to IP67. Other enhancements incorporated into the SmArtGas 4 detector include: Advanced interface for external connections, Power voltage range up to 50 V Mitigation of the long-term drift of catalytic sensors. * in relation to the work of the detector with the HL head equipped with a pellistor sensor Please visit our YouTube channel where you will learn about the properties of our devices: Functionalities WATCH THE ENTIRE PLAYLIST Products WATCH THE ENTIRE PLAYLIST Realizations WATCH THE ENTIRE PLAYLIST Power supply Voltage VCC 15 – 50 V Power 0,1 – 4 W (depends on the configuration) Environment Ambient temperatures Ta Specified depending on: the temperature class of the device (see line ATEX / IECEx below) device configuration, including the sensor used 0 – 40 °C ( storage ) Humidity 10 – 90% long term 30 – 90% long term ( storage ) 0 – 99% short term Without condensation Pressure 1013 ± 10% hPa ATEX / IECEx Certificate No FTZU 19 ATEX 0028X / IECEx FTZU 20.0007X The temperature range, temperature class and power consumption depends on the gas detector configuration D = 0 II 2G Ex db IIC T6…T5 Gb II 2D Ex tb IIIC T80°C…T95°C Db D = FLED / FLED.A / LCD II 2G Ex db IIC T6 Gb II 2D Ex tb IIIC T80°C Db For more informations Datasheet Additional requirements related to the ATEX / IECEx certificate Thermal resistance required for cable glands For class T6: -40 < Tservice < 80°C For class T5: -40 < Tservice < 100°C Details see User Manual Thermal resistance required for cables For class T6: -40 < Tservice < 85°C For class T5: -40 < Tservice < 95°C Details see User Manual Requirements to tripping timeFor catalytic sensor Hydrogen T90 ≤ 9 s Methane T90 ≤ 13 s Propane T90 ≤ 17 s Ethanol T90 ≤ 18 s TAlarm(T20) ≤ 3 s TAlarm(T20) ≤ 4 s TAlarm(T20) ≤ 4 s TAlarm(T20) ≤ 5 s IP IP66/IP67 (measuring head with membrane FL.M, FH.M) IP63 (other) Analog output 4 – 20 mA Output type Sink / source RLOAD_MAX (source mode) 300 Ω US_MAX (sink mode) 30 V (max. voltage between pins „S” and „-”) Digital output parameters Relays 3 x Floating contacts, NO/NC 24 V / 0,3 A Not protected against overloading Digital communication parameters RS-485 RS-485, Modbus ASCII, Sigma Bus, 19200 Bd 7E1 Teta Teta Bus Parameters of wireless communication Bluetooth 4.2 Integrated signalling equipment (optical) D=LCD: alphanumeric display 2×8 of the LCD type with LED indicators D=FLED: multicolour status display LED Integrated signalling equipment (acoustic) D=FLED.A: 70 dB, 1 m distance Protection class III Cable glands Cable diameter range See User Manual External thread M20 x 1.5 Acceptable cables 0.5 – 2.5 mm2 (cable lugs 2 x 1 mm2 or 2 x 0.75 mm2 should be used for double wires) Operating parameters for the FL.C head Flow rate of the reference gas 0.5 l/min Maximum wind velociy 0.5 m/s Coupling size 6 / 4 mm Enclosure material See Datasheet Measuring head material SS316L Weight 3.5 kg Mandatory periodic inspection Every 12 months (Calibration Certificate validity) – time can be shortened due to difficult working conditions Mounting To the supporting structure, 2 screw holes 4 mm, hole spacing 127 mm • We recommend using mounting brackets – see User Manual acetonitrileacetyleneammoniabenzenebutadienebutanolcarbon dioxidecarbon disulfidecarbon monoxidecyclohexanonecyclopentanediethyl etherethyl acetateethyl alcoholethyleneethylene oxideextraction gasolineformaldehydegasolineheptanehexanehydrogenhydrogen sulfideisobutaneisopropanolisopropyl acetateJet-Amethane (natural gas)methyl alcoholn-butyl acetateotheroxygenpentanephosphanepropylenepropylene oxidestyrenetolueneVOCxylene Videos Placement and role in the system Files to downloadDatasheets:SmArtGas 4 Gas Detector - Datasheet Download fileUsers's manual:SmArtGas 4 Gas Detector - User Manual Download fileCE declarations:SmArtGas 4 Gas Detector - Declaration of Conformity Download fileOthers:Measurement parameters configuration of gas detectors Download fileAEX Certificate Download fileIECEX Certificate Download fileGas sensors manual Download fileCable entries manual Download fileSigma Gas System Manual Download file Related products Control UnitsSigma Control LGas DetectorsProGas 4Gas DetectorsReAct 4