Product Model: GT-WJ2000
Product Type: Fixed Gas Detector / Industrial Online Gas Detector
Applicable Industries: Petrochemical, Power Energy, Gas Engineering, Metallurgy, Pharmaceutical, Environmental Protection Engineering, Hazardous Chemical Storage
I. Product Overview
GT-WJ2000 series fixed gas detector is a safety detection equipment used for continuous online monitoring of gas concentration in industrial sites. The product adopts natural diffusion sampling method and can monitor combustible gases and various toxic and harmful gases in the working environment in real time.
The equipment is equipped with high-sensitivity customized sensors, with good repeatability and stability. It is equipped with a high-brightness red digital display screen at the factory, which can visually display the on-site gas concentration. When the detected value exceeds the set alarm threshold, the equipment can automatically trigger sound and light alarms or linkage exhaust systems to effectively prevent gas leakage accidents.
GT-WJ2000 supports international standard 4–20mA analog signal output and can be directly connected to the factory DCS system to achieve centralized monitoring and linkage control. Built-in microcontroller, stable system and easy operation, suitable for various continuously operating industrial scenarios.
II. Product Core Advantages
Supports detection of combustible gases and various toxic and harmful gases
Multiple detection principles optional: Semiconductor / Catalytic Combustion / Electrochemical / Infrared / PID Photoionization
High-brightness red digital tube display, readable from a distance
Ex d II CT6 Gb explosion-proof rating, suitable for explosion-proof areas
Standard 4–20mA + RS485 output, compatible with DCS/PLC systems
Low-power embedded microcontroller for long-term stable operation
Supports relay output, can link sound and light alarms
Infrared remote control without opening the cover for safer maintenance
Sensor life expiration reminder for convenient operation and maintenance management
III. Detectable Gas Types and Ranges
GT-WJ2000 supports detection of various common industrial gases. Typical ranges are as follows (customizable per project):
Combustible Gas
Combustible Gas: 3～100 %LEL
Oxygen: 0～25.0 %VOL
Toxic and Harmful Gases
Carbon Monoxide (CO): 0～100 / 500 / 1000 / 5000 ppm
Sulfur Dioxide (SO₂): 0～20 / 50 / 100 / 2000 ppm
Nitric Oxide (NO): 0～20 / 200 ppm
Ammonia (NH₃): 0～10 / 20 / 100 ppm
Hydrogen Sulfide (H₂S): 0～100 / 1000 ppm
Chlorine (Cl₂): 0～10 / 20 ppm
Ozone (O₃): 0～100 ppm
Phosphine (PH₃): 0～10 / 20 / 1000 ppm
Methanol, Toluene, Carbon Dioxide, Phosgene, Hydrogen Fluoride, Nitrogen Dioxide, Bromine, Hydrogen Chloride, etc.
Supports multi-gas customized configuration, suitable for complex working conditions
IV. System Integration and Installation
GT-WJ2000 can be installed by wall mounting or pipe bracket, supporting point-distributed deployment. It is connected to the plant central control system through 4–20mA and RS485 to realize remote gas concentration monitoring, alarm linkage, exhaust control, and historical data management. It is suitable for building a complete industrial gas safety monitoring system.
