I. Product Overview

The JH-FK type combustible gas alarm controller is used in places such as production, transportation, storage, and filling of combustible gases. It collects the concentration of combustible gases in the air detected by point-type combustible gas detectors (4~20mA signal).

When the set alarm value is reached, output the corresponding alarm and control signals to prompt on-site personnel to take timely safety measures. It can be connected to systems such as DCS and fire graphics, and can also activate external devices like exhaust fans and solenoid valves to ensure personnel and equipment safety and prevent accidents due to the leakage of flammable gases.

Controllers are suitable for non-explosive areas such as fire control rooms and control centers.

II. Product Features

Utilizes a high-speed core processor for efficient and stable operation.

2. Compatible with detectors that output 4-20mA signals

3. The controller employs multi-level signal filtering to ensure stable signal data.

4. Built-in 8 relay outputs

5. Outputs RS485/Modbus RTU signals for connection to computers and higher-level systems.

6. Features alarm status retention function;

7. Supports alarm record storage and query functions, with a capacity of 1,000 entries.

8. Modular design with independent operation for each circuit.

Section 3: Technical Specifications

Operating Voltage: 220V AC ±15%

2. Backup Power Supply: External 12V DC / 7.2Ah*2

3. Display Method: LCD Display

4. Compatible Detector Capacity: 1~8 Channels

5. Communication Method: 4~20mA

6. Power Consumption: ≤25W

7. Concentration Units: %LEL, ppm, %VOL, mg/m³

8. Alarm Methods: High/Low Limit Alarms, Fault Alarms

9. Relay Outputs: 8 sets, interlockable, output capacity: 1A 220VAC

Operating Temperature: -10°C to 55°C

11. Working Humidity: ≤95%RH (Non-condensing)

12. Installation Type: Wall-Mounted

13. Dimensions (mm): 300*105*430