11
PRS-UM-DP32-EN-Rev.02-05.2019
Fault relay is energized and set to NC by default. User can monitor power status as it will be
switched in case of total power loss.
Alarm Status:
The Panel will report Alarm status when gas level exceedes defined alarm levels on any of
the detector channel. Panel has two adjustable measurement alarm levels. If any connected
detector measurement reaches the given alarm threshold level, panel will activate related
alarm relay and LED. Alarm-1 relay and LED will be activated in case any of the connected
detector measurement reaches defined Alarm-1 threshold level. Panel will show "AL1"
symbols for the related channel on LCD screen and also activate alarm LED on related
channel. Alarm-2 relay and LED will be activated in case any of the connected detector
measurement reaches defined Alarm-2 threshold level. Panel will show "AL2" symbol for the
related channel on LCD screen and also activate alarm LED on related channel. Alarm-1 and
Alarm-2 relays and LEDs will be both active in case any of the connected detector reports
Alarm-2 status.
Overrange Status Screen:
The panel also report overrange status in case any of the channels reported measurement
higher than measurement range. This status has been detected by panel when an input
signal received from serial line and reported on LCD screen on related channel with
“
Range<
” symbol and measurement level fixed to 100LEL. The overrange condition is highes
measurement level that panel can understand and overrange level is higher than alarm
levels. The alarm LEDs and relays will be activated before panel reports overrange condition.
Diagram 10: Overrange status display
