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Gas Alarm Controller AEC2392a

Types of Gas Detected:%LEL, ppm and %VOL
Alarming Setting:Low alarm and high alarm
Signal Transmission Distance:1500m(1.5m㎡)
Display Screen:LCD Chinese display
Working Temp.:-10℃~+50℃;relative humidity≤93%RH


Technical Specifications

Name Parameter
Types of Gas Detected %LEL, ppm and %VOL
Standard Configuration(8 Circuits) One master control card, eight channel cards and one 19 " standard 3U rack
Operating Voltage DC24V±6V
Input Signals ​Connect to (4-20)mA standard current signals or passive switching value signals via a channel card
Signal Transmission Distance


Output Signals

1.RS485 bus communication signal(standard MODBUS protocol);

2.Signals of 2 sets of relays(failure and alarm);

contact capacity:AC220V/5V or DC24V/5A

Alarming Mode Audible-visual alarm
Display Mode LCD Chinese display
Mounting Mode Standard 19"Cabinet panel mounting

Boundary Dimension of the Standard Rack

Length x Width x Thickness:450mm x 300mm x 132.5mm (Excluding handrail); 482mm x 344mm x 132.5mm (Including handrail)

Major Features

     1.jpg The 19” cabinet standard 3U panel-mounted all-metal structure can prevent EMI/RFI interference. Due to an independent plug-in card design, optional channel cards, master control cards and power supply cards can be used as required to set up a gas monitoring system with up to 1,000 point locations; 

    1.jpg The master control card is characterized by LCD Chinese display and character menu operation. It can monitor the system’s concentration, alarm and failure statuses. It can also be used to set and search various parameters. It can set system time, range (%LEL, ppm and %VOL), three alarm types, alarm concentration, password, and operating authorization and search up to 999 alarm and failure records and 100 startup/shutdown records; 

    1.jpg The master control card’s RS485 bus communication interface, equipped with a standard MODBUS protocol, can communicate with the host control systems and connect fire and gas systems to improve the system integration level;

    1.jpg Channel cards can receive 4-20mA signal or switching value signal input and be connected with various devices, including combustible gas detectors, toxic and hazardous gas detectors, oxygen detectors, flame detectors, smoke/heat detectors and manual alarming buttones, etc.;

    1.jpg With a LED display accuracy of 0.000-9999, channel cards can monitor external equipment’s concentration, alarm and failure statuses on a real-time basis and communicate with the master control card. Channel cards can also work independently and be used to set parameters of detectors. Thus, failure of the master control card or failure of other channel cards will not have an impact on channel cards’ gas monitoring;

    1.jpg Channel cards’ multiple output types are applicable to linkage of various on-site external control devices, good for integration of the host control system;

    1.jpg Power supply cards supply DC24V power supply to internal devices of the host computer and on-site devices (in case of higher capacity, use special-purpose firefighting power supply).

Product Architecture

1. 19” standard 3U rack      

2. 4×φ7.5 mounting hole        

3. Handle      

4. Channel card   

5. Channel card LED window      

6. Screw

7. Lock switch of the standby power supply 

8. Lock switch of the main power supply

9. Power supply card

10. Master control card

11. Master control card LCD panel




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