Class1 Digital Display - Manual (Page 26)

26
Oxygen Supply
The Class1 Oxygen Remaining Display is designed to provide operators with
a visible indication of Oxygen remaining and an audible warning when there
is less than 20% oxygen remaining. The audible warning is inactive when-
ever the pressure is below 50 PSI so that it will not sound when the supply is
turned off.
The display represents oxygen volume information in an easy to interpret
LED bargraph display as a percentage of maximum calibrated pressure. The
display includes a visual warning and an auxiliary warning alarm output.
When the relative volume of oxygen remaining reaches 25%, the bars will
begin to flash, and when the system pressure drops to 20%, the auxiliary
output will turn on. The alarm can be silenced with an alarm silence switch.
Once the alarm is silenced, it will remain silent until the unit is turned off and
then back on, and will reset whenever the volume of air exceeds 20%. When
the alarm is silenced, there will be an alert chirp every fifteen (15) minutes to
remind the operator that the oxygen supply is low.
O2 REMAINING
0 25 50 75 100