Testing
Checking the Drain Valve
● Connect pressure side of the pump to the test unit.
1 Continue pumping
2 until at least 10 mbar are indicated on the test unit.
While pumping:
3 Fit the open side of sealing cap R 22 086 over the tappet
of the relief valve and hold it tightly until it is pressed into
place by the inflated breathing bag.
4 The drain valve must not open at 10 mbar (no flow sound).
The drain valve must have opened when 18 mbar are
reached (flow sound).
The low pressure warning generated by the Sentinel during
this test is irrelevant here.
Leak Test with Positive Pressure
1 Close shut-off valve at the test unit.
2 Reduce the pressure to 7
+0,5
mbar at the test unit. Note
initial value.
3 Start the stopwatch.
The pressure must not change by more than 1 mbar
during one minute.
● De-aereate PSS BG 4 via test unit.
4 Remove sealing cap R 22 086.
The low pressure warning generated by the Sentinel during
this test is irrelevant here.
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Draeger Training 11/16 rev 1
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