Jh-Fd Four Channel Gas Alarm Controller

JH-FD combustible gas alarm controller, suitable for combustible gas production, transportation, storage, filling and other places, to collect the concentration of combustible gas in the air detected by the point-type combustible gas detector (4-20mA signal).

When the set alarm value is reached, the corresponding alarm signal and control signal are output to prompt the on-site personnel to take safety measures in time. It can be connected to systems such as DCS and fire-fighting graphics. At the same time, external equipment such as exhaust fans, solenoid valves, etc. Ensure the safety of personnel and equipment and prevent accidents caused by the leakage of flammable gas.

The controller is suitable for non-explosion-proof places such as fire control rooms and control centers.

(1) Using a high-speed core processor, the operation is efficient and stable;
(2) It can be connected to the detector with 4-20mA signal;
(3) Multi-stage signal filtering is used in the controller to stabilize the signal data;
(4) Built-in 2 groups of relay outputs;
(5) It can output RS485/Modbus RTU signal and connect to the upper system such as computer;
(6) It has the function of keeping the alarm state;
(7) Support alarm record storage and query functions, with a capacity of 2000;
(8) Modular design, each circuit works independently.

Working voltage: 220V AC±15%
Backup power supply: 12V DC/1.3Ah*2
Display mode: color LCD display
Adapted detector capacity: 1-4 channels
Communication mode: 4-20mA
Power consumption: ≤25W
Concentration unit: %LEL, ppm, %VOL, mg/m³
Alarm mode: high, low limit alarm, fault alarm
Relay output: two groups, output capacity: 1A 220VAC
Working temperature: -10ºC-55ºC
Working humidity: ≤95%RH (non-condensing)
Installation method: wall-mounted
Dimensions (mm): 360*90*280