The gas alarm system Model / gas alarm systems [the Huasheng technology / science and technology leading 

 The system uses a microprocessor as a control unit, high-performance catalytic gas sensors or precision electrochemical sensor detection detector, high sensitivity, fast response. When the detection of gas concentrations in the environment to meet or exceed preset alarm value, the controller immediately audible and visual alarm to remind take safety measures, and control-driven ventilation, or other peripheral action to prevent an explosion, fire and poisoning incidents occurred in order to protect the safety of life and property. 
 This system can be widely used in factory 
 , Oil depots, gas stations, gas stations, gas stations, paint room and so on need to the place of fire and explosion safety detection and alarm. 

 1, the system features and main technical parameters 

 The main features 


 Using sub-wire transmission; 


 Information collection, use the advanced embedded microcontroller and real-time operations, conversion and control output; 


 The large-screen LCD Chinese display, advanced keyboard interaction, easy to operate; 


 Low reported that the high reported levels, the alarm can be set up, the detector automatic fault monitoring and alarm (alarm user adjustable); 


 Detector automatic fault monitoring; 


 The last 50 alarm and fault log query, non-volatile; 

 The controller can be accessed by up to 64 4-20mA or RS485 output signal of the detector, 8 alarm output; 


 Intelligent systems: convenient online zero adjustment; alarm point linkage output, normally open relay output passive. 

 2, the main technical parameters 


 Capacity: 64 Adapter Detector 


 Adapter Detector: 4-20mA standard signal output or RS485 output signal 

 2-wire 
 3-wire or 4-wire 


 Operating voltage: AC220V ± 15%, 50Hz ± 1% 


 Standby power: DC24V rechargeable battery 


 Power consumption: less than 240W (64 detectors) 


 Contact output: normally open passive contact 2A/220VAC 


 Display error: ± 3%; alarm point of full scale ± 5% 


 Response time: <30s 

 Use of the environment: 
 Temperature of 0 ℃ to 40 ℃ relative humidity ≤ 93% 

 Detector power supply current: 80 ± 5% mA / Road 


 Back-up battery voltage alarm value: 16V ± 1V