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Building an IT-based Gas Monitoring System Utilizing Core Gas Detector Technology

FLAMMABLE GAS DETECTOR

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Combustible Gas Detector

차량정보 표
Model No. FLAMMABLE GAS DETECTOR QM-4700 / (NDIR TYPE)
Category GAS DETECTOR, Combustible Gas Detector

Description

Description
  • TRANSMITTER TYPE (4~20mA)
  • MODEL : QM-4700
Features
  • Diffusion gas detector for real-time detector of combustible gases in locations with potential explosion hazards.
  • Gas detector with overvoltage protection and malfunction prevention features, including a constant voltage channel for safe operation of detection sensors.
  • Internal pressure explosion-proof certification.
  • Calibration and program settings: ZERO point, Span (Automatic Setting with no vollume required except for 4-20mA).
  • Calibration and maintenance by a single person.
  • Minimization of the impact of noise, temperature, and humidity.
  • Connection of the analog standard output (4-20mA) signal to DCS & PLC monitoring systems.
  • Install the system in hazardous areas at industrial sites to measure combustible gases in real-time, providing a 4-20mA standard output for connection to control devices, alarm devices, and monitoring systems.
Specification
Model No.
QM-4700
Measuring gas
FLAMMABLE GAS (H2, CH4, C2H2, C2H4, Freon etc.)
Measuring range
0~100%(LEL)
Application sensor
Catalytic
combustion NDIR (Infrared)
Semiconductor
Measuring signal
4~20mA
Response time
Within 15~45 seconds (Depends on sensor type)
Accuracy
±2% / Full scale or ±3% / Full scale (Depends on sensor type)
Operating temp - '/humi'
-20°C ~ +40°C / 90% RH (Non-condensing) (Depends on sensor type)
Operating power
24V.DC
Consumption electric power
1.45W (Alarm 2.4W)
Cable/Distance
F-CVVS(Shield) 1.5sq × 3wire/Max 2,500M
Conduit connection
3/4(22MM) PF
Mounting type
Wall mounting or 2" Pole mounting
Approval
Ex d IIC T6 (KOSHA)
Dimension
126(W) × 208(H) x 76(D)
Weight
1.17 Kgs
DIMENSION(mm)