Point-type combustible gas detector (explosion-proof)

Gas Detection & Industrial

Point-type combustible gas detector (explosion-proof)

Product Overview

Built on zero-point calibration technology, the GTYQ-ZH uses a catalytic combustion sensing principle to continuously detect combustible gas concentrations in the ambient environment. It is fitted with imported high-quality gas-sensitive elements for accurate detection, fast response and stable temperature/humidity characteristics.

Key features

  • Single-chip technology with high-sensitivity, anti-poisoning gas sensor
  • Constant alarm sensitivity, sensor-fault identification, over-limit protection
  • Over-range and reverse-polarity protection
  • Local alarm indication; optional integrated sounder strobe
  • Explosion-proof Ex d IIC T4 Gb, suitable for Zone 1, 2, 21, 22
  • Easy operation and maintenance

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Product Parameters

Detection principleCatalytic combustion / Humidity range
Detectable gasesRated power / 0.9 W standby / 1.5 W alarm (incl. sounder)
DriftZero drift < 3 %/year, span drift < 5 %/year / Ingress protection / IP65
Repeatability±3%F.S. / Explosion-proof marking / Ex d IIC T4 Gb / Ex tb IIIC T130 °C Db
Working voltage24VDC / Alarm settings / 25 %LEL (low) / 50 %LEL (high)
Measuring accuracy±3 %LEL / 3 %LEL – 100 %LEL
Housing materialCast aluminium / Low-level output / 24V/100mA
Operating temperature-40~+60℃ / High-level output / 24V/1A
Storage temperature-40~+60℃ / Communication / RS485 / CAN bus
Sensor service lifeElectrochemical ≥ 2 years (depends on environment) / Display / High-brightness digital display
Response time≤25S

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