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Dräger PSS BG 4 plus

Dräger PSS BG 4 plus
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Testing
Checking the Relief Valve
1 Open shut-off valve at the test unit.
2 Pump slowly until
3 the relief valve opens (flow sound).
4 The opening pressure indicated at the test unit should
amount to 2 to 5 mbar.
Disconnect pump from the test unit.
The breathing circuit is de-aereated automatically.
The low pressure warning generated by the Sentinel during
this test is irrelevant here.
High-Pressure Leak Test
1 Set "Leak test".
2 Open the cylinder valve.
3 Watch the Sentinel: the cylinder pressure is indicated here.
If cylinder pressure is lower than 2600 psi/165 bar:
Charge the oxygen cylinder.
15821726.eps
4
2
1
3
15921726.eps
1
3
2
Page 43
Draeger Training 11/16 rev 1

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