OEM GTQ-XP4000 Explosion Proof Combustible Gas Detector Manufacturer, Factories

Description

The GTQ-XP4000 stands out as an infrared-based explosion proof combustible gas detector with strong anti-poisoning capability, targeting long-term stable detection in complex industrial atmospheres. It features a full explosion and dust ignition proof design, ensuring safe operation in explosive hazardous areas. Adopting an infrared detection principle, it shows excellent resistance to silicon, sulfur and halogen compounds, greatly extending sensor service life and reducing maintenance frequency. It is equipped with dual-channel relay output, supporting independent high and low alarm threshold control for precise risk grading. The digital sensor assembly can be replaced without field calibration, and the IP66 protection level ensures reliable performance in harsh environments. It integrates a two-stage built-in sound-light alarm and a high-brightness digital tube display for clear alerts. A standard expansion port supports 4-20mA, HART, RS485 and relay output, enabling flexible access to various monitoring platforms. It is a high-end choice for refractory flammable gas monitoring in petrochemical and chemical industries.

Detector Specification

Model	GTQ-XP4000
Measuring gas	Combustible gases (Methane, propane, isobutane, hydrogen, etc.)
Measuring type	Diffusion type
Measuring method	Infrared
Measuring Range	0-100% LEL
Response time	< 30sec / 90% scale
Accuracy	±3% / Full Scale
Operation mode display	Normal / High Alarm / Low Alarm / Trouble LED
Measuring value display	Digital tube
Power	24V DC nominal, 18 to 31V DC
Alarm signal output	Light and sound output / 50mA
Output signal	XBUS 2/4 wire Optional expansion module: 4-20mA / RS485 / HART / NB-IoT / 4G / One-channel passive relay output / HBUS
Conduit connection	Standard: 3xM26x1.5P Option: FPT3/4', NPT3/4''
Mounting type	Wall/Pole/Ceiling mount
Operating temperature	-40°C ~ +70°C
Operating humidity	5 to 95% RH (Non-condensing)
Housing Material	Aluminum alloy
Dimensions	157.5(W) x 178.4(H) x 90(D) mm
Explosion Proof	Ex db IIC T6 Gb
Certification	Refer to technical documentation

Sensor Specification

Sensor Type	Measuring Gas	Measuring Range	Operating Temp.	Typical Life	Response Time
Catalytic Type	Combustible gases	0~100%LEL	-40°C ~ +70°C	36 months	<15sec / 90% scale

Sensor Features (Catalytic Type)

Linear Output

Output signal shows a good linear relationship with gas concentration, enabling precise concentration readings.

High Stability

Minimal performance fluctuations during long-term use, ensuring reliable detection results.

High Sensitivity & Fast Response

Quickly captures gas concentration changes and triggers timely alerts.

Broad-Spectrum Capability

Detects most flammable gases and flammable vapors (e.g., hydrogen (H₂), methane (CH₄), propane (C₃H₈), ethanol vapors, etc.).

Poisoning Resistance & Low Consumption

Exhibits certain tolerance to common poisoning substances (e.g., silicon, lead compounds), with a long service life and low attrition rate.

Frequently Asked Questions

Q: Which target gases does the GTQ-XP4000 detect?

A: The detector targets a wide range of combustible gases including Methane, Propane, Isobutane, Hydrogen, and other common flammable industrial gases and vapors.

Q: What is the advantage of the infrared sensor technology in this detector?

A: The infrared detection principle delivers outstanding resistance to sensor poisoning from silicon, sulfur, and halogen compounds, dramatically increasing the sensor lifespan and lowering overall maintenance demands.

Q: Does replacing the sensor require complex site calibration?

A: No. The GTQ-XP4000 is equipped with a digital sensor assembly designed to be hot-swapped and replaced quickly without requiring calibration in the field.

Q: What type of alarms and displays are built into the device?

A: It features an integrated two-stage built-in sound-light alarm along with high-brightness digital tube and LED indicators to explicitly convey Normal, High/Low Alarm, or Trouble status.

Q: What signal interface options are supported by the GTQ-XP4000?

A: The device offers a standard expansion port supporting 4-20mA, HART, RS485, NB-IoT, 4G, passive relay outputs, and XBUS/HBUS communication protocols for flexible system integration.

Q: Is the device suitable for extreme outdoor industrial environments?

A: Yes, it is constructed with a robust IP66-rated aluminum alloy housing, explosion-proof class Ex db IIC T6 Gb, and operates reliably in extreme temperatures ranging from -40°C to +70°C.