I. Product Overview:

The GT-JH601 industrial and commercial point-type combustible gas detector (hereinafter referred to as the detector) is an intelligent detector developed by our company that can simultaneously output 4-20mA current signals and RS485 signals, while also providing real-time display.

This product features high stability, accuracy, and intelligence, suitable for environments with flammable gases, and it displays the concentration of the gas in real-time. If the concentration of flammable gas exceeds the set alarm level, the detector outputs a switch signal, which can trigger external devices such as sound and light alarms, activate exhaust fans, and close valves.

II. Product Features:

Digital Module Integrated Display

(2) Utilizes imported anti-poisoning sensors, integrated with a state-of-the-art digital processing system, offering high measurement accuracy, excellent stability, resistance to poisoning, and strong anti-interference capability.

(3) Detachable sensor design allows for the connection of various sensor components, enabling detection of different gas targets. Field troubleshooting is convenient, and maintenance is easy.

(4) Supports both RS485 and 4-20mA communication methods, offering enhanced compatibility.

(5) The detector features automatic identification and display capabilities for over-concentration, sensor short-circuit, and open-circuit faults.

(6) No calibration required for sensor replacement; intelligent digital sensor component technology, with good stability and strong anti-interference ability.

(7) Infrared remote control design allows for calibration of the detector without opening the cover on-site, and features a rear cover wiring design.

(8) Equipped with 2 sets of passive switch quantity outputs, capable of connecting external sound and light alarm devices to expand sound and light alarm functions.

III. Technical Specifications

(1) Sensor Operation Principle: Poison-resistant catalytic combustion

(2) Range: 3～100% LEL

Accuracy: ±3%LEL (≤50%LEL); ±5%LEL (>50%LEL)

Zero Drift: ≤5% LEL/year;

(3) Response Time: T90 ≤ 30 seconds;

(4) Operating Environment: Temperature: -40℃ to 70℃; Relative Humidity ≤ 95%RH

(5) Working Voltage: 18~30V DC

(6) Signal Output: 4-20mA current loop output; RS485 output (Modbus RTU)

(7) Display Method: Digital Module Integrated Display

(8) Adjustment Method: Infrared remote adjustment of parameters.

(9) Wiring Method: Rear cover wiring

(B10) Explosion-proof Type: Flameproof

(B11) Explosion-proof rating: Ex d IIC T6 Gb

(12) Protection Rating: IP66 (excluding sensor part)

(13) Electrical interface thread: G3/4.