Combustible Gas Alarm Controller(JH-ZK)
The JH-ZK combustible gas alarm controller is designed for environments involved in the production, transportation, storage, and filling of flammable gases. It receives combustible gas concentrations from point-type gas detectors via an RS485 signal, and when the configured alarm threshold is reached, it outputs alarm and control signals to prompt on-site safety measures; it can interface with systems such as DCS and fire graphics and drive external devices including exhaust fans and solenoid va
Technical Parameters
Specification |
Parameter |
Working Voltage |
220 V AC ±15% |
Backup Power Supply |
12 V DC / 7.2 Ah × 2 |
Display Mode |
LCD Display |
Compatible Detector Capacity |
1 to 32 Channels |
Communication Interface |
RS485 |
Power Consumption |
≤60 W |
Concentration Units |
%LEL, ppm, %VOL, mg/m³ |
Alarm Types |
High/Low Limit Alarm, Fault Alarm |
Relay Output |
2 groups (interlockable); Output Rating: 1 A 220 VAC |
Operating Temperature |
-10°C to 55°C |
Operating Humidity |
≤95% RH (Non-condensing) |
Installation Type |
Wall-mounted |
Overall Dimensions (mm) |
390 × 122 × 480 |
Features
Equipped with a high-speed core processor for efficient and stable operation.
Compatible with the company’s detectors with RS485 signal output.
Built-in 2 sets of relay outputs.
Supports RS485/Modbus RTU signal output for connection to host systems such as computers.
Includes an alarm status hold function.
Supports alarm record storage and query, with a capacity of 1,000 records.
Modular design ensures stable and reliable performance.
