Description And Intended Use - Dräger PSS 7000 Series C/W SENTINEL 7000 EMU User Instructions

PSS® 7000 SERIES c/w SENTINEL 7000 EMU
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Description and Intended Use

This User Instruction (UI) describes the Dräger PSS® 7000 Series of SCBA fitted
with the following:
A Dräger Sentinel 7000 electronic monitoring system, with integral personal
alert safety system (PASS).
A Dräger wireless head-up display (HUD) unit.
The Dräger PSS® 7000 is a compact and lightweight apparatus that provides the
wearer with respiratory protection when working in contaminated or oxygen-deficient
conditions. The system can be used as a self-contained system or with an independent
air supply to increase effective operation time. The system is fully compatible with a wide
range of compressed-air cylinders, face masks and lung demand regulators (LDRs).
The carrying system has a height-adjustable articulating backplate (6, Fig 1) that
provides improved comfort and ease of use, resulting in increased manoeuvrability
and reduced fatigue. The carbon-composite backplate incorporates a sliding height-
adjustable yoke that has three preset positions. A flexible pivot joint located at the
base of the backplate (in line with the hip of the wearer) moves in response to the
twisting and bending of the wearer, improving the weight distribution and freedom of
movement. The system includes adjustable shoulder straps (2) and waist belt (11).
The Sentinel 7000 electronic monitoring system is a multi-function system that
provides continuous monitoring of the SCBA status including remaining cylinder
pressure, movement of the wearer, main battery condition, end-of-service time
(EOST) and PASS. It provides visual indications of system status and audible and
visual alarms in warning conditions. User control and monitoring of the system is
through a user interface (1) that incorporates switches, LEDs, a liquid crystal display
(LCD) display screen and an alarm sounder. A backlight illuminates the user interface
display screen when required. Additional alarm sounders (5), with warning LEDs top
and bottom, are mounted on the backplate and operate only during PASS alarms.
The operating settings are preset and non-adjustable by the user.
The PASS function of Sentinel 7000 electronic monitoring system is an alarm system
that can be activated manually or automatically. The automatic alarm uses a motion
sensor to detect movement and activate a pre-alarm and main alarm at timed intervals
when no movement is sensed. The manual alarm is activated by a press button on
the user interface. A limitation of the PASS is that it detects movement or vibration
to which the wearer is subjected.
Power supplies include a main battery located in the backplate, a back-up battery
located the pressure module and a HUD battery located in the HUD. The system is
switched on by a press button on the user interface or by cylinder pressure felt at a
pressure module, with cylinder pressure transmitted to the pressure module through
a high-pressure hose (7). At switch on, a self test is performed and then the system
adopts the active mode where the PASS function is operational.
All variants utilise the same high-performance, first-stage, regulator (9) fitted with an EOST
mechanical whistle (10). The pressure regulator supplies medium-pressure breathing
air to a quick-release coupling (4) via a medium-pressure hose (3). Incorporated in the
first-stage regulator is a rapid intervention crew universal air connection (RIC UAC) (8).
Sentinel 01: Edition 1: July 2008 - Subject to Modification
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