Main Performance and Features:

①4-20mA branch signal interface, can be connected to branch detectors;

② S-BUS bus interface, can be connected to bus detectors;

③ Independent certification for each channel, any point does not affect certificate usage;

④ LCD display, wall-mounted installation;

⑤ Two-level alarms: low-limit alarm, high-limit alarm;

⑥ Automatic fault monitoring:

When one of the following conditions occurs, the controller can emit fault signals that are significantly different from the gas alarm signal:

Short circuit or disconnection between the controller and the detector wiring;

Detector malfunction;

Controller main power or backup power failure;

⑦ Linkage output, linkage output mode and logic can be set:

Each channel has 2 linkage outputs, which can control 2 external devices (fans or solenoid valves);

⑧ Power conversion function:

Each channel has independent main and backup power supply, and can switch seamlessly between main and backup power sources, with status indication of both power supplies;

⑨ Can store 999 alarm records and 999 fault records:

Recent 999 alarm and 999 fault records can be queried, and information is not lost during power off;

⑩ Battery protection function:

When only backup power is in use and the battery voltage is low, the system will automatically shut down to protect the battery;

⑪ Equipped with TTL/MODBUS host interface, enabling communication with the host.a