Description SENKO SI-100 Fixed Gas Detector The SENKO SI-100 Intrinsically Safe Fixed Gas Detector holds ATEX Zone 1 certification and finds application in hazardous environments housing potentially flammable gas atmospheres. Approved by IECEx and KCS, this detector serves as a constant sentinel for perilous gases like toxic radon and carbon monoxide. Offering permanence in gas detection, the SENKO SI-100 not only showcases gas concentrations but also presents diagnostic results on its LCD display. It establishes communication with the controller through either a traditional 4-20 mA analog output or an RS-485 digital connection. Comprised of top and bottom case assemblies along with a sensor component assembly, the SENKO SI-100 features an enclosure constructed using threaded and glued connections. The ADC12 AL material composition ensures robustness. Noteworthy attributes include a voltage range spanning 9 to 34 VDC (with a maximum consumption of 130 mA at 12 V), an ambient temperature tolerance of -20 to 55 °C, and a maximum power consumption of 1.6 W. Designed for wall mounting, it boasts a construction combining aluminum and stainless steel (STS304) and holds an IP65 rating, signifying resilience against environmental elements. Features: ATEX Zone 1 Class I Division I IECEx Measures the concentration of the flammable gas, toxic gas, oxygen and display with LCD Various sensors can be applied Easy operation with a magnetic bar Large digital LCD embedding blue backlight Explosion-proof Water/Dustproof structure Automatic calibration function Long-distance transmission by 4-20mA output Specifications: MODELSI-100 Measuring gasCombustible Gas Measuring methodCatalyticIR Measuring range 0~100%LEL0~100%LEL Sensor life time > 5 years> 2 years Response time <15sec/90% scale<30sec/90% scale Resolution 1%LEL1%LEL MODELSI-100 Measuring gasToxic GasOxygen Measuring methodElectrochemical cellGalvanic Measuring range ref. the Sensor list0~30%VOL Sensor life time > 2 years< 2 years Response time ref. the Sensor list<15sec/90%scale Resolution ref. the Sensor list0.1%VOL MODELSI-100 Measuring typeDiffusion Type Accuracy±3%/Full scale Parameter ControlFront 3 magnetic switch(calibration, maintenance, alarm setting) Operation mode displayVisual: LCD alarm display, LCD Backlight, Indicator LED Audible / buzzer (90dB at 10cm) Measuring value displayDigital LCD Display(4-digit) Alarm displayVisual : LCD alarm display, LCD Backlight, Indicator LED Alarm output signalRelay contact(Max 30Vdc, 5A) when Alarm occurred Alarm level setProgrammable within detection range Output signalAnalog : 4-20mA, Digital : RS-485(Option) / Hart PC interraceRS_485(Option) Cable/Distance(4-20mA and Power: CVVSB 1.5sq or AWG 20 / 2,500m max), (RS-485 data communication cable: UL2919 RS-485 1pair / 1,200m max) Conduit connectionNPT 3/4" (2way) Mounting typeWall mount Program set modeAlarm value(1,2 alarm), Alarm time(instant@delay) 1~30min, Alarm dead band, output on/off Operating temperature-20ºC ~ 55ºC Operating humidity5% to 95% RH(Non-condensing) Operating power10~36Vdc 600mA MaterialAluminium, Stainless steel(STS304) LCD size55(W) × 30(H) mm Dimensions150(W) × 165(H) × 110(D) mm WeightStandard type: 1.9kg ApprovalEx d IIC T5 (IP65)_IECEx, CE EMC, ATEX, CSA(Under certification) OptionBattery type, Built-In light bar, Movable SI-100 Sensor list: GasSensorRange OxygenO 2Electrochemical0~30%Vol Carbon MonoxideCOElectrochemical0~500ppm Sulfur DioxideSO 2Electrochemical0~20ppm HydrogenH 2Catalytic0~100%LEL HydrogenH 2Electrochemical0~1000ppm Hydrogen SulfideH 2 SElectrochemical0~100ppm Combustible-Catalytic0~100%LEL Combustible-IR0~100%LEL AmmoniaNH 3Electrochemical0~100ppm AcetyleneC 2 H 2Catalytic0~100%LEL EthanolC 2 H 6 OCatalytic0~100%LEL TolueneC 7 H 8IR0~100%LEL TolueneC 7 H 8Catalytic0~100%LEL MethaneCH 4IR0~100%LEL MethaneCH 4Catalytic0~100%LEL ChlorineCl 2Electrochemical0~5ppm ChlorineCl 2Electrochemical0~20ppm Carbon DioxideCO 2IR0~2000ppm Carbon DioxideCO 2IR0~5000ppm Carbon DioxideCO 2IR0~5%Vol Hydrogen ChlorideHClElectrochemical0~10ppm VOCVOCPID0~1000ppm XyleneC 8 H 10IR0~100%LEL Hydrogen peroxideH 2 O 2Electrochemical0~10ppm Nitrogen DioxideNO 2Electrochemical0~20ppm Ethylene oxideC 2 H 4 OElectrochemical0~30ppm EthyleneC 2 H 4Catalytic0~100%LEL Nitrogen MonoxideNOElectrochemical0~100ppm Hydrogen fluorideHFElectrochemical0~5ppm GasA1A2Resolution OxygenO 219.0%vol23.0%vol0.1%vol Carbon MonoxideCO30ppm60ppm1ppm Sulfur DioxideSO 22ppm5ppm0.1ppm HydrogenH 215%LEL50%LEL1%LEL HydrogenH 2100ppm500ppmwithin 5ppm Hydrogen SulfideH 2 S10ppm15ppm1ppm Combustible-15%LEL50%LEL1%LEL Combustible-15%LEL50%LEL1%LEL AmmoniaNH 325ppm35ppm1ppm AcetyleneC 2 H 215%LEL50%LEL1%LEL EthanolC 2 H 6 O15%LEL50%LEL1%LEL TolueneC 7 H 815%LEL50%LEL1%LEL TolueneC 7 H 815%LEL50%LEL1%LEL MethaneCH 415%LEL50%LEL1%LEL MethaneCH 415%LEL50%LEL1%LEL ChlorineCl 20.5ppm1.0ppm0.1ppm ChlorineCl 20.5ppm1.0ppm0.1ppm Carbon DioxideCO 21000ppm1500ppm3ppm Carbon DioxideCO 23000ppm5000ppm8ppm Carbon DioxideCO 20.5%vol3%vol0.1%vol Hydrogen ChlorideHCl1ppm2ppm0.1ppm VOCVOC50ppm100ppmwithin 3ppm XyleneC 8 H 1015%LEL50%LEL1%LEL Hydrogen peroxideH 2 O 21ppm2ppm0.1ppm Nitrogen DioxideNO 23ppm5ppm0.1ppm Ethylene oxideC 2 H 4 O1ppm2ppm0.1ppm EthyleneC 2 H 415%LEL50%LEL1%LEL Nitrogen MonoxideNO25ppm50ppm1ppm Hydrogen fluorideHF0.5ppm1ppm0.1ppm Certifications: ATEX Certificate IECEx Certificate KCS Certificate – Korean Resources: SENKO Catalog User Manual – English User Manual – Korean Data Sheet – Korean More Options For You: SENKO SI-100C Fixed Gas Detector
