I. Product Overview
The JH-Z128 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 the combustible gas detectors (RS485 signal) at the collection points.
Upon reaching the set alarm value, output the corresponding alarm and control signals, prompting on-site personnel to take timely safety measures. Compatible with systems such as DCS and fire graphics, it can also activate external devices such as exhaust fans and solenoid valves to ensure personnel and equipment safety and prevent accidents caused by the leakage of flammable gases.
Controllers are suitable for non-explosive environments such as fire control rooms and control centers.
II. Product Features
Utilizes a high-speed core processor for efficient and stable operation.
2. Integrated RS485 isolation chip, effectively reduces system failures.
3. Equipped with 6 relay output groups
4. Outputs RS485/Modbus RTU signals for connection to computers and higher-level systems.
5. Features alarm status hold function;
6. Supports alarm record storage and query, with a capacity of 1000 records.
7. Modular design with four-loop cyclic display, each loop showing 32 channels of values and status simultaneously.
Section 3: Technical Specifications
Working Voltage: 220V ±15% A
2. Backup Power Supply: External 12V DC / 24Ah*2
3. Display Method: Liquid Crystal Display
Total Circuits: 4 circuits
5. Maximum number of channels for single loop: 32 channels
6. Communication Method: RS485 (Modbus RTU)
7. Power Consumption: <250W
8. Concentration Units: %LEL, ppm, %VOL, mg/m³
9. Alarm Methods: High/Low Limit Alarms, Fault Alarms
10. Alarm Relay Outputs: 6 sets, output capacity: 1A 220VAC
11. Operating Temperature: -10°C to 55°C
12. Working Humidity: ≤95%RH (Non-condensing)
13. Installation Method: Rackmount/Surface Mount
14. Dimension (mm): Controller: 484*270*179
15. Power Supply Box: 403*253*187
