Breathing air, Breathing air -25 – Class1 Digital Display User Manual
Page 23
23
Breathing Air
The
Class1
Breathing Air Display is designed to provide firefighters with a
visible indication of breathing air remaining and an audible warning when
there is less than 20% air remaining. The alarm will not activate when there is
less than 50 PSI air in the system, this silences the alarm when the air supply
is turned off.
The display represents air volume information in an easy to interpret LED
bargraph display as a percentage of maximum calibrated pressure. The
Breathing Air Display includes a visual warning and an auxiliary warning alarm
output.
When the relative volume of air remaining reaches 25%, the bars will begin to
flash and the alarm output will becomes active when system pressure drops
to 20%. The alarm can be silenced with an alarm silence switch. Once the
alarm is silenced, it will remain silent for five (5) minutes or until the unit is
turned off and then back on, and is reset whenever the volume of air exceeds
20%.
BREATHING AIR
0 25 50 75 100
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