I. Product Overview:

The GT-JH603 Industrial and Commercial Point-Type Combustible Gas Detector is an intelligent detector developed by our company that can simultaneously output a 4~20mA current signal and RS485 signal, with real-time display.

This product features high stability, accuracy, and intelligence, suitable for environments where flammable gases are present. It displays the concentration of flammable gases in real-time. If the concentration of flammable gases exceeds the set alarm value, the detector outputs a switch signal to control external interlocked equipment: sound and light alarms, exhaust fans, solenoid valves, etc.

II. Product Features:

Color digital module integrated display;

(2) Utilizing imported anti-poisoning sensors in conjunction with an advanced digital processing sensor system, offers high measurement accuracy, excellent stability, anti-poisoning properties, and strong anti-interference capability.

(3) Detachable sensor design for easy maintenance and upkeep.

(4) Simultaneously supports RS485 and 4~20mA communication methods, with stronger compatibility.

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

(6) In-built storage for calibration data, featuring intelligent digital sensor components with high stability and strong anti-interference capability.

(7) Infrared remote control design allows for calibration settings of the detector without opening the cover on-site.

(8) Integrated with 2 sets of passive switch quantity outputs;

(9) Built-in sound and light alarm for expanded sound and light alert functionality;

(10) Equipped with an integrated RS485 isolation chip, effectively reducing system failures.

III. Technical Specifications:

(1) Sensor Operating Principle: Ant-poisoning 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 (non-condensing)

(5) Operating Voltage: 24V DC

(6) Signal Output: 4~20mA current loop output

RS485 Output (Modbus RTU)

(7) Display Method: Integrated Color Digital Module Display

(8) Wiring Method: Rear cover wiring

(9) Explosion-proof Type: Diaphragm Type

(B10) Explosion-proof marking: Ex d IIC T6 Gb

                            Ex tD A21 IP66 T80℃；

(11) Protection Class: IP66

(12) Electrical Interface Thread: G3/4