Dräger PSS BG 4 plus User Manual

Draeger BG4 Iso Training 1/14
BG4 Sentinel System Testing
TEST PROCEDURE
 Connect BG4 Sentinel System
and meter as per Fig A.
(The cooler is used as a pressure dampener)

Slowly pump positive
pressure into the cooler. The Sentinel should turn on before the pressure reaches 1.4 mbar.
If fails: check battery, lines, connections on switch box
and switch box.
 Turn O2 cylinder ON and
read pressure on Sentinel.
Should be close to pressure
on cylinder gauge. (+ 250 psi)
 Turn O2 cylinder OFF.  Service as required
Cooler
Switch
Box
x
Sentinel
PRESSURE
REDUCER
with BYPASS
OXYGEN
MINIMUM
VALVE
MP
RELIEF
VALVE
PRESSURE
TRANSDUCER
Pump Bulb
Positive Pressure
Fig A
Line used to
connect breathing
loop pressure to
switch box
Page 76
Draeger Training 11/16 rev 1

Dräger PSS BG 4 plus Specifications

General

Brand	Dräger
Model	PSS BG 4 plus
Category	Diving Instrument
Language	English