PSS BG 4 Service Manual
Draeger Safety, Inc.
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 / 180 bar:
• Charge the oxygen cylinder.
When the cylinder pressure is over 2600 psi / 180
bar:
– Icon “Close cylinder valve” appears on the
backlight display.
– Alarm beeps.
• Close the cylinder valve.
The result of the test is output after approx. 15
seconds.
When the PSS BG 4 is OK:
– Icon “Open cylinder valve” appears on the
display.
• Open the cylinder valve.
The high-pressure leak test has been completed
successfully.
In the event of a fault:
– The X icon appears on the display.
– Alarm bleeps four times.
– red LEDs flash.
WARNING!
PSS BG 4 must not be used if a fault is detected!
Failure to follow this warning could lead to death
or serious injury.
Draeger Training 11/16 rev 1
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