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SI-100

Fixed Gas Detector

Fixed gas detector for toxic, combustible gases and oxygen deficiency. Features large LCD display with self-diagnostics, supports 4-20mA and RS-485 output, and offers strong EMI/RFI resistance with durable metal housing.

KEY FEATURES
    • Supports various sensor types
    • Easy operation using a magnetic bar
    • Large digital LCD display with blue backlight
    • Explosion-proof structure
    • Water and dust proof design
    • Automatic calibration by simply applying gas
    • Long-distance signal transmission via 4–20 mA output
    • Relay contact output signal
Product Inquiry

SI-100

Fixed Gas Detector

DESCRIPTION

The SI-100 is a fixed gas detector designed to continuously monitor the presence of toxic gases, combustible gases, and oxygen in industrial environments. With an explosion-proof structure and a wide range of sensor options, the SI-100 provides stable and reliable gas detection in hazardous areas. It features a large LCD display with white backlight for clear visibility and supports easy operation and calibration using a magnetic bar. The SI-100 provides output via 4-20mA signals and RS-485 communication, ensuring easy integration with control systems.


KEY FEATURES

- Supports various sensor types
- Easy operation using a magnetic bar
- Large digital LCD display with blue backlight
- Explosion-proof structure
- Water and dust proof design
- Automatic calibration by simply applying gas
- Long-distance signal transmission via 4–20mA output
- Relay contact output signal


Product Specifications
Model Name SI-100
Detected Gas Combustible Gas Toxic Gas Oxygen
Detection Principle Catalytic IR Electrochemical Cell Galvanic
Sensor Life > 5 years > 2 years > 2 years < 2 years
Response Time <15 sec / 90% scale <30 sec / 90% scale <15 sec / 90% scale
Resolution 1%LEL 1%LEL 0.1%VOL
Detection Type Diffusion Type
Accuracy ±3% Full Scale
Operating Voltage 18~32Vdc
Power Consumption 2.8W @ 24Vdc
Indicators FND, Gas Concentration, Alarm, Device Fault
Relay Output 1st Alarm, 2nd Alarm, Fault Alarm (Rated 5.0A @30Vdc)
Analog Output 4~20mA (HART: Optional)
Digital Communication RS-485
Remote Interface RS-485 Modbus, HART (Optional)
Input & Setting Non-Intrusive with Magnetic Wand & RS-485 (Optional)
Wiring 4~20mA / DC / Relay: Max 20 AWG
Operating Temperature -20℃ ~ +55℃
Operating Humidity 5% ~ 95% RH (Non-condensing)
Conduit Size 3/4” NPT × 2EA
Device Warranty 2 Years
Sensor Warranty 1 Year
Material Transmitter: Aluminum, Sensor Housing: Stainless Steel (SS316)
Dimensions 150(W) x 165(H) x 110(D) mm
Weight Approx. 1.9kg
Explosion-proof Certification KCs: Ex d IIC T5
IECEx: Ex d IIC T5
INMETRO: Ex db IIC T5 Gb
Sensor Specifications
Gas Sensor Range Low Alarm High Alarm Resolution
O₂Electrochemical0~30%vol19.0%vol23.0%vol0.1%vol
COElectrochemical0~500ppm30ppm60ppm1ppm
SO₂Electrochemical0~20ppm2ppm5ppm0.1ppm
H₂Catalytic0~100%LEL15%LEL50%LEL1%LEL
H₂Electrochemical0~1,000ppm100ppm500ppm5ppm
H₂SElectrochemical0~500ppm10ppm15ppm1ppm
CombustibleCatalytic0~100%LEL15%LEL50%LEL1%LEL
Combustible IR0~100%LEL15%LEL50%LEL1%LEL
NH₃Electrochemical0~100ppm25ppm35ppm1ppm
C₂H₂Catalytic0~100%LEL15%LEL50%LEL1%LEL
C₂H₄OCatalytic0~100%LEL15%LEL50%LEL1%LEL
C₆H₆IR0~100%LEL15%LEL50%LEL1%LEL
C₇H₈Catalytic0~100%LEL15%LEL50%LEL1%LEL
CH₄IR0~100%LEL15%LEL50%LEL1%LEL
CH₄Catalytic0~100%LEL15%LEL50%LEL1%LEL
Cl₂Electrochemical0~5ppm0.5ppm1.0ppm0.1ppm
Cl₂Electrochemical0~20ppm0.5ppm1.0ppm0.1ppm
CO₂IR0~2,000ppm1,000ppm1,500ppm3ppm
CO₂IR0~5,000ppm3,000ppm5,000ppm8ppm
CO₂IR0~5%vol0.5%vol3%vol0.1%vol
HClElectrochemical0~10ppm1ppm2ppm0.1ppm
VOCPID0~1,000ppm50ppm100ppmwith in 3ppm
C₈H₁₀Catalytic0~100%LEL15%LEL50%LEL1%LEL
H₂O₂Electrochemical0~10ppm1ppm2ppm0.1ppm
NO₂Electrochemical0~20ppm3ppm5ppm0.1ppm
C₂H₄OElectrochemical0~30ppm1ppm2ppm0.1ppm
C₂H₂Catalytic0~100%LEL15%LEL50%LEL1%LEL
NOElectrochemical0~100ppm25ppm50ppm1ppm
HFElectrochemical0~5ppm0.5ppm1ppm0.1ppm
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