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

GAS DETECTOR

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GAS DETECTOR

차량정보 표
Model No. FLAMMABLE GAS DETECTOR QM-9100D
Category GAS DETECTOR

Description

Features

- Premium diffusion gas detector for real-time monitoring of combustible gases in locations with potential 

  explosion hazards.

- Gas detector with on-site display and backlight LCD feature for continuous identification of combustible gas 

   concentration in low-light conditions.

- High-intensity LED warning flash lamp (H.HH).

- Gas detector with various functions, including zero and concentration calibration, temperature compensation, 

   and final calibration date verification via magnetic key or computer monitoring system without opening the cover.

- Onboard 4–20mA output, dry contact output (1st, 2nd, 3rd), optional 24V DC output, and fault detection function.

- Computer system with bidirectional communication function on the controller.

- IP66 and Internal pressure explosion-proof certified by IECEx, ATEX, and KGS.

- Galvanically isolated RS-485 network: a highly robust field-bus network capable of limiting the propagation of 

   external noise, such as lightning, to a localized area.

- When expanding the detection unit, it connects to the nearest communication line and automatically integrates 

   with the computer monitoring system, allowing for automatic expansion and contraction, resulting in cost savings 

   for installation and maintenance management.

Specification
Model No.
QM-9100D
Measuring gas
FLAMMABLE GAS (H2, CH4, C2H2, C2H4, Freon etc.)
Measuring range
 0~100%(LEL)
Application sensor
Catalytic combustion, Semiconductor,  NDIR(Infrared)
Measuring signal
4~20mA(Transmitter) Relay Contact(H.HH) or 24V.DC(H.HH) , Fault RS-485 Modbus/ Hart Protocol(OPTION)
Response time
Within15~45seconds (Depends on sensor type)
Accuracy
±2% / Full scale or ±3% / Full scale (Depends on sensor type)
Operating temp´/humi´
-20℃ ~ +40℃ / 90% RH(Non-condensing) (Depends on sensor type)
Operating power
21~31V.DC, 125mA
Consumption electric power
2.4W(When alarming 4.0W)
Cable/Distance
UL2919 1pair(RS-485), supply 24V.DC /Max1,000M CVVS(Shield) 1.5sq x 3wire(4~20mA) /Max2,500M
Conduit connection cable
3/4-14 NPT
Mounting type
Wall mounting or 2″ Pole mounting
Approval
 Ex db IIC T6 Gb / Ex tb IIIC T85°C Db (KCs) II 2G Ex db IIC T6 Gb/II 2D Ex tb IIIC T85°C Db (ATEX) Ex db IIC T6 Gb/Ex tb IIIC T85°C C Db (IECEx)
Dimension
143(W) × 175(H) × 116(D) - Except for calibration cap
Weight
1.42Kg
DIMENSION(mm)