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  • LOCATION:Gas alarm controller

  • Gas alarm controller

AS-2000A Combustible gas alarm controller

AS-2000A   Combustible gas alarm controller



Product features


★ Full Chinese color LCD and graphic display main information,support for touch screen operation;

★ Probe bus and power bus with short circuit protection;

★ Up to 128 detector real-time concentrations and related date can be uploaded in 1 second,concentrations data can be transmitted in both analog and digital;

★ The shortest time in China、fastest、most content;

★ Supports bus type/loop/tree wirings;

★ Black box function,store 8000 data;

★ The detector’s alarm threshold can be set by the controller;

★ Embedded technology and real-time preemptive multitasking embedded operating system;

★ Low power consumption,fast processing speed,fast system response and stable operation;

★ Alarm device and linkage device address mixing;with RS485 interface;

★ Strong field programming capability,support U disk for data update.


Technical Parameters


♦ Installation methodWall-mounted

♦ Display modeFull Chinese color LCD and graphic display

♦ Measurement accuracy:≦±1%F.S

♦ Alarm modeSound and light alarm

♦ Control quantity816326490

♦ Output VoltageDC 26V±10%

♦ Detecting the output voltage21VDC-28VDCPulse

♦ Wiring methodFour-wire system

♦ Alarm settingsLow limit alarm25% of the total rangeDefaults)   

 High limit alarm50% of the total rangeDefaults

♦ Record alarm informationCan store 8000 pieces of informationthe oldest record automatically cleared after 8000

♦ Communication interfaceRS-485/RS-232

♦ Operating voltageAutomatic switching of mains and backup power

Main powerAC 187V242V  

Backup power9AH/12V2knots

♦ Output control2 sets of common relay outputs  Capacity1A/125VAC3A/30VDC

♦ Ambient temperature: (0+40)℃  

♦ Humidity range:(1095%RH  

♦ Pressure range:(86106kPa

♦ Weight6.5kg/10.5kgwith backup battery

♦ Package size490mm×390mm×200mm




 Dimensions and installation size




System composition



Terminal block description