PSS BG 4 Service Manual
Draeger Safety, Inc.
Check Relief Valve
1 Set “positive pressure pumping”.
2 Continue pumping until
3 the relief valve opens.
4 Read off the opening pressure on the
pressure gauge: It should lie between 2 and
5 mbar.
The low-pressure warning generated by the Sentinel
during this test is irrelevant here.
Draeger Training 11/16 rev 1
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