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Gas Detected
Ex
Function
Detection principle: catalytic combustion
Measure range: 0–100%LEL
Response time*: T90 ≤ 30 s
Accuracy*: ≤ ±3% F.S
Repeatability*: ≤ 3% F.S
Electrical Characteristics
Power supply: 18–28 VDC (standard 24 VDC)
Power consumption: ≤ 2.5 W
Signal output: 4–20 mA (GTQ-GY30) / RS485 (GTQ-GY31)
Wiring: three-wire (GTQ-GY30) / four-wire (GTQ-GY31)
Suitable cable: RVVP3 × 1.0 mm² (GTQ-GY30) / RVVP4 × 1.0 mm² (GTQ-GY31)
Relay output: 1 passive relay (GTQ-GY30 and GTQ-GY31)
Display & Operation
Indicator light: Normal, Fault, Alarm
Structural Characteristics
Ingress protection: IP66
Operating temperature: –40 °C ~ 70 °C
Operating humidity: 10 ~ 95 % RH non-condensing
Operating pressure: 80 ~ 120 kPa
Structure
Body material: ADC12 Aluminum Alloy + Stainless Steel
Close nipple: NPT 1/2
Weight: about 0.7 kg
Dimensions (H×W×D): 88 × 120 × 84 mm
Certificates
SIL: SIL2
ATEX: Ex db II CT6 Gb
