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Gas Alarm Controller AEC2303a

Types of Gas Detected:%LEL
Signal Transmission Distance:1500m (2.5m㎡)
Alarming Mode:Audible-visual alarm
Display:Nixie tube
Working Voltage:AC176V~AC264V (50Hz±1%)


Technical Specifications



Types of Gas Detected %LEL
Operating Voltage AC176V~AC264V (50Hz±1%)
Power Consumption ≤10W (Excluding supporting equipment)
Signal Transmission Four-bus system (S1,S2,+24V,GND)
Signal Transmission Distance 1500m (2.5m㎡)
Capacity Total number of detectors and input modules≤4
Alarming Mode Audible-visual alarm
Display Nixie tube
Mounting Mode Wall-mounted
Boundary Dimensions Length x Width x Thickness:320mm x 240mm x 90mm


Major Features

     1.jpg Bus signal transmission, strong system anti-interference capability, cost-efficient wiring, convenient and efficient installation; 

    1.jpg Real-time gas concentration (%LEL) monitoring interface or time display interface for user’s choice;

    1.jpg One-button start for simple and convenient system commissioning;

    1.jpg Freely setting the alarm values of the two alarming levels in the full-scale range; 

    1.jpg Automatic calibration, and automatic tracing of sensor ageing;

    1.jpg Automatically monitoring failure; correctly showing the failure location and type;

    1.jpg Two sets of programmable internal linkage output modules and two programmable emergency buttons to automatically or manually control external equipment;

    1.jpg​ Strong memory: historical records of the latest 999 alarming records, 100 failure records and 100 startup/shutdown records, which will not be lost in case of power failure;

    1.jpg RS485 bus communication (standard MODBUS protocol) interface to realize communication with the host control system and networking with the fire and gas network system, to improve system integration.

Product Architecture

1. Side lock

2. Cover

3. Horn

4. Bus connection terminal

5. RS485 bus communication interface

6. Relay connection terminal

7. Bottom box

8. Incoming hole

9. Grounding terminal 

10. Power supply terminal

11. Switch of main power supply 

12. Switch of standby power supply

13. Switch power supply

14. Standby power supply

15. Control panel




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