G1 Heads-Up Display (Hud); G1 Hud Pressure Status - MSA G1 SCBA Operating Manual

8

G1 Heads-Up Display (HUD)

8.1

G1 HUD Pressure Status

The G1 HUD provides the pressure and alarm status to the user through light pipes into the facepiece.
The pressure status is on the right side of the user, while the alarm status is on the left side of the user.
The pressure status indicators are divided into four segments. These four segments are based on
percentage of the maximum pressure of the cylinder. Each segment has a corresponding quantity and
color of LEDs associated with them.
Below are the segments the G1 HUD:
Segment
Segment 1
Segment 2
Segment 3
Segment 4
The G1 settings can be configured to when and how the segments get displayed. There are four (4)
options the user can select from prior to using the product.
Option 1: Intermittent Mode (Default Mode)
Intermittent mode shows the pressure status when there is a change from one segment to another.
• Segment 1 is displayed at start-up with a full cylinder and is displayed for 20 seconds before going
out.
• Segment 2 displays once the pressure reached its range and is displayed for 20 seconds before
going out.
• Segment 3 begins flashing when the pressure reached its range and displays for 30 seconds
before going out.
• Once Segment 4 is reached the LEDs activate and stay flashing until the unit is shutdown.
Pressure range
75 to 100 %
50 to 74 %
36 to 49 %
0 to 35 %
G1 SCBA
G1 Heads-Up Display (HUD)
Illuminated LEDs
Four (4) green LEDs
Three (3) green LEDs
Two (2) yellow LEDs
One (1) red LED
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