13
Description
GB
G1 Integrated SCBA System
2.3
G1 Heads-Up Display (HUD) (Electric Version Only)
The HUD is integrated into the LGDV and projects different colored light into the full face mask to
indicate current cylinder pressure and alarm status of the device. The HUD allows users to make
conclusions about cylinder pressure and alarm status while wearing the SCBA. Status information
is provided from the SCBA while operating power is received from the central power module. The
HUD consists of 7 LEDs separated to 3 on the left and 4 on the right side to improve visibility and
clarity. An integrated ambient light sensor in the LGDV varies the LED intensity depending to envi-
ronmental light conditions. (optional setting).
2.4
Cylinder and Valve Assembly
The cylinder and valve assembly (see also chapter 11) stores high pressure air which will be
reduced to provide the user breathable air. Cylinders are available in multiple sizes. The valve
assembly provides the user the ability to open the pressure to the rest of the system. The valve
assembly consists of a handwheel for opening and closing the valve and a threaded high pressure
connection according to EN 144.
Optionally, an alphaCLICK 2 quick connection is available. In this case, the pressure reducer is
equipped with the male part of the coupling. The female part (alphaCLICK 2 adaptor) is screwed
into the cylinder valve.
2.5
G1 Pressure Reducer
The pressure reducer reduces the cylinder pressure to medium pressure, which is in turn further
reduced by the LGDV to a pressure that is respirable by the user. The pressure reducer incorpo-
rates a fail safe design which ensures air flow to the user in the event of a malfunction within the
pressure reducer.
The pressure reducer incorporates a medium pressure relief valve, and a cylinder connector with
a sintered filter to capture particulates that may be in the air stream.
The pressure reducer is marked with a serial number, followed by the year of manufacture (two
digits).
For the electronic version, the pressure reducer contains a primary low pressure warning signal.
In the pneumatics only version, the pressure reducer is connected to the SL manifold containing
a pressure gauge (showing the cylinder pressure), a warning whistle for low pressure alarm, a
connector for the LGDV and a second connector for emergency situations.
