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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.
| 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 website |
| Sensor Type | Measuring Gas | Measuring Range | Operating Temp | Typical Life | Response Time |
|---|---|---|---|---|---|
| Catalytic Type | Combustible gases | 0~100%LEL | -40 to +70℃ | 36 months | <15sec / 90% scale |
The GTQ-XP4000 utilizes an infrared detection principle, providing excellent resistance to poisoning agents such as silicon, sulfur, and halogen compounds, which significantly extends the sensor's service life.
No, the digital sensor assembly is designed for easy maintenance and can be replaced directly without the need for field calibration.
It features an IP66 ingress protection rating and a full explosion and dust ignition proof design (Ex db IIC T6 Gb). The operating temperature range is from -40°C to +70°C.
The standard unit supports XBUS 2/4 wire connection. Optional expansion modules are available for 4-20mA, RS485, HART, NB-IoT, 4G, one-channel passive relay output, and HBUS.
The catalytic type sensor features broad-spectrum capability, allowing it to detect most flammable gases and vapors, including hydrogen (H₂), methane (CH₄), propane (C₃H₈), and ethanol vapors.
