Feature

l applicable  with standard Modbus RS485 signal equipment.

l 4  groups of  public relay output (Fault alarm, First level alarm, Second level alarm)

l provide  standard  RS232 or RS485   interface  to communicate  with PLC or PC

l data records can be exported via USB

l alarm parameter setting, detection range setting, system time setting, communication mode setting and alarm delay setting   can be reset  by pressing button

l the alarm channel number, alarm concentration  &  time, and alarm mute function can be directly queried through the menu

l installation method: wall-mounted installation

 
Audible & Visual Alarm

l   when the gas concentration exceeds the pre set first-level (A1 low alarm) alarm value ,  the buzzer will makes a slightly slow, intermittent sound, the alarm indicator l amp  will light  on , and the first-level alarm public relay will  starts to work

l    when the gas concentration exceeds the pre set second -level (A 2high  alarm) alarm value ,  the buzzer will makes a sharp , intermittent sound, the alarm indicator l amp  will light  on , and the first-level alarm public relay will  starts to work

l   when the gas detector’ s  circuit fail, such as: no signal output from the gas detector, of transmission line   drop or the signal output of the gas detector exceeds the measurement range, the buzzer will makes a  continuously  sound  and the alarm indicator l amp  will light  on

Main Function

l   Data L ogging F unction

t he history data record can be directly queried through the menu, and the data save interval can be customized

l   Parameter S etting F unction

t he operating parameters of the controller can be viewed and modified at any time, including the current date/time, detection  range, alarm limits at all levels, channel shielding, etc.

l   Alarm O utput C ontrol F unction

t he controller has 1 public alarm output relay and 4 programmable alarm output relays  to c ontrol the fire equipment, alarm equipment or other equipments.

l   Communication F unction

t he controller has 1  RS-232 and 2  RS-485 output interfaces, which can easily transfer data to other controllers, computers, etc. The controller default address is: 255, the baud rate is: 9600