GT-JH801 Combustible Gas Detector

GT-JH801 Combustible Gas Detector

1. Product Overview
GT-JH801 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 signal and RS485 signal and display in real time.
This product has the characteristics of high stability, high accuracy, high intelligence and long life. It is suitable for places where combustible gas exists and displays the concentration value of combustible gas in real time. When the concentration of combustible gas on site exceeds the set alarm value, the detector outputs a switch signal, which can be linked to external devices: such as sound and light alarm, opening exhaust, closing valves, etc.

2. Product Features
(1) Digital module integrated display;
(2) Imported infrared sensor, combined with advanced sensor digital processing system, high measurement accuracy, good stability, strong anti-poisoning and anti-interference ability, long service life;
(3) Plug-in sensor process design, by matching different sensor components, it can realize the detection of different gas objects, convenient on-site investigation and later maintenance;
(4) Support RS485 and 4~20mA communication methods at the same time, with stronger compatibility;
(5) The detector has automatic recognition and display functions for over-concentration, sensor short circuit and open circuit faults;
(6) No calibration is required when replacing the sensor, intelligent digital sensor component technology, good stability and strong anti-interference ability;
(7) Infrared remote control design, the detector can be adjusted on-site without opening the cover and the top cover wiring design is adopted;
(8) Built-in 1 group of passive switch output, and another group can output passive switch or DC24V (external sound and light alarm to expand the sound and light alarm function).
(9) Built-in isolation chip effectively reduces the possibility of the entire system being paralyzed due to failure.

3. Technical Parameters
(1) Sensor working principle: infrared sensor;
(2) Measuring range: 3~100%LEL;
Accuracy: ±5%LEL;
Zero drift: ±2%LEL;
(3) Response time: T90≤30 seconds;
(4) Operating environment: temperature: -40℃～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 mode: digital module integrated display;
(8) Adjustment mode: infrared remote control parameter adjustment;
(9) Wiring mode: top cover wiring;
(10) Explosion-proof form: flameproof type;
(11) Explosion-proof grade: Ex d IIC T6 Gb;
(12) Protection grade: IP66;
(13) Electrical interface thread: G3/4.