During Use - Dräger PSS 7000 Series C/W SENTINEL 7000 EMU User Instructions

PSS® 7000 SERIES c/w SENTINEL 7000 EMU
Close the cylinder valve and breathe normally to empty the system of pressure.
When the system is empty, inhale and hold breath for approximately 8 seconds. Readjust
and retest until the face mask contracts and holds on to the face with no air leaks.
Open the cylinder valve slowly, but fully, to pressurise system.
7

During Use

Do not commence any operation (including supplied-air respirator (SAR)
operations) using a cylinder that is less than 80% full. The effective working
duration of the apparatus is dependent on the capacity of the air cylinder
!
and the breathing rate of the wearer.
On activation if the unit fails to operate, or a low battery alarm activates,
i i
then the relevant batteries should be renewed.
Regularly observe warning and
display signals, and note the
following:
For emergency help or assistance,
press the yellow button in the centre
of the user interface to activate the
PASS alarm (see below).
To illuminate the display backlight,
press and release the LH or RH
button of the user interface.
Remaining cylinder pressure is
indicated on the user interface and
the HUD LEDs. The user interface
shows the cylinder pressure digitally
(numeric) and as an analogue segment display (Fig 16). The HUD shows the cylinder
pressure with LEDs (refer to the Table 1). The user interface digital display is the
most accurate indicator.
Remaining time to EOST alarms is indicated on the user interface as a digital (numeric)
display.
React to the following alarm and warning signals as necessary:
EOST – The user interface will emit an audible alarm tone, and red and blue LEDs
will flash; the red LED on the HUD will flash; the mechanical whistle on the first-stage
regulator will sound.
PASS pre-alarm – A repeating audible alarm tone will be emitted from the user
interface sounder and the additional alarm sounders. Move the user interface to
cancel the alarm (do not attempt to use the buttons to switch off the pre-alarm.
PASS alarm – A high-level sweeping alarm will be emitted from the user interface
sounder and the additional alarm sounders; red and blue LEDs on the user interface
Sentinel 01: Edition 1: July 2008 - Subject to Modification
psi
18
Fig. 16
2202