Dräger PSS 7000 Series C/W SENTINEL 7000 EMU User Instructions page 21

PSS® 7000 SERIES c/w SENTINEL 7000 EMU
(Fig 8) and top and bottom of the
additional alarm sounders (Fig 11)
will flash intermittently; the user
interface will show the alarm icon
(Fig 17). Simultaneously press and
hold the RH and LH buttons of the
user interface to cancel the alarm.
Low main battery – A low battery icon
(Fig 4) will be displayed on the user
interface or the G/Y battery LED (Fig
14) will flash yellow.
Low HUD battery – The G/Y battery
LED will flash green.
Loss of HUD communication – The
HUD blue LED flash
Additional air flow can be delivered into the face mask as follows:
Press and release the bypass button (3, Fig 13) to deliver a single jet of air into the
face mask.
Additional air flow required – Press and rotate the bypass button to deliver a
sustained air supply (80 to 130 litres/minute) into the face mask
Excessive or loss of air flow – Close the cylinder valve then immediately begin to
slowly reopen the valve. Use the cylinder valve as a regulating valve to set the air
flow to meet the user requirement. This procedure can also be used with ratchet-
type cylinder valves.
The air flow procedures above are emergency measures that may greatly
!
reduce the operating duration of the air supply. When activated the
user must immediately evacuate to a safe area. The reason for using
the procedure must be investigated and repaired before reusing the
apparatus.
Table 1 Head-up display LEDs
Key On
1/2 (for 20 secs once)
1/4 to approx. 100 psig
Sentinel 01: Edition 1: July 2008 - Subject to Modification
Flashing R Red A Amber G
Cylinder
Contents
Full to 3/4
3/4 to 1/2
1/2 to 1/4
psi
Green
LED's
R A G
E M R
D B E
E E
R N
19
Fig. 17
2198
G
R
E
E
N