PSS BG 4 Service Manual
Draeger Safety, Inc.
Checking the Residual Pressure Warning
• Close the cylinder valve.
1 Watch the Sentinel.
A warning should be generated at
approximately 700 psi / 48 bar.
The acoustic alarm sounds intermittently and
the red LEDs flash.
2 Unplug the coupling from the test unit RZ 25
and replace the sealing cap on the plug-in
coupling.
• Turn off Sentinel by pressing both left and
right hand buttons simultaneously.
Draeger Training 11/16 rev 1
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