Pre Operational Checks - Dräger PSS 7000 Series C/W SENTINEL 7000 EMU User Instructions

PSS® 7000 SERIES c/w SENTINEL 7000 EMU
5

Pre Operational Checks

Sentinel 7000 Self Check
The self check can be performed with or without a pressurised cylinder
i i
fitted.
Press the LH button of the user interface, or open the cylinder valve of a pressurised
cylinder. The following self-check sequence will commence:
First stage – The Sentinel 7000 will emit a single tone from the user interface and
the additional alarm sounders, and the display backlight will illuminate.
Second stage – The display will show a tick symbol (Fig 7); the blue, red and green
LEDs (Fig 8) will illuminate.
bar
psi
MPa
Third stage – The display will show
the cylinder type (Fig 9) (2216 psi
or 4500 psi)
Fourth stage – The display will
show the normal operating screen
(Fig 10); the blue, red and green
LEDs (Fig 8) will illuminate; the
blue and red LEDs (1, Fig 11) will
illuminate.
End of sequence – Two 'trill' alarms
will sound; the display will show the
normal operating screen (Fig 10);
the green LED (Fig 8) will flash at
Sentinel 01: Edition 1: July 2008 - Subject to Modification
B
Fig. 7
2191
psi
R G R B
Fig. 8
Fig. 9
13
2200
2190