Alarm panel. During operation of the system, the transmitter monitor hydrocarbon gas concentration and
Transfer the concentration into corresponding current signal by DC4-20mA. At the same time, send the
Current signal to PC Controller with RDYB Alarm Meter for displaying the concentration in real time.
While the gas concentration is higher than the pre-alarm value or limit alarm value, corresponding the
Audio-visual alarm is working in controller unit and indicate the point that emits alarm signal.
Voltage: Main AC220V／AC 110V
Signal output：RS485
Back up DC24V
Alarm state: 30%LEL (main alarm)
10%LEL (pre-alarm, adjustable)
Failure alarm
Sample object: Combustible gas in air;
Measuring range:0～100%LEL,1～100%V/V
Alarm type: audio-visual alarm