
USING THE AIR MASK
Replacing the Batteries in the FireHawk M7 HUD
Replace the batteries in the FireHawk M7 HUD or I-
HUD when the low battery LED flashes. Use only rec-
ommended battery types. Change the batteries in a
non-hazardous area only. Failure to follow this warn-
ing can result in serious personal injury or death.
1. Unthread the battery cap (counter-clockwise) on the
FireHawk M7 HUD battery tube.
2. Remove the battery cartridge from the FireHawk M7
HUD.
3. Remove the batteries and discard.
4. Ensure that moisture or debris is not present in the
battery compartment.
5. Inspect the battery cartridge for signs of damage such
as corrosion on the battery terminals or cracks in the
cartridge. If the battery cartridge is damaged, replace
the cartridge immediately.
6. Insert three AAA alkaline batteries in the appropriate
locations on the cartridge. Follow the notations on the
cartridge to ensure proper battery orientation.
Use only Rayovac 824 LR03, Rayovac Ultrapro LR03,
Energizer E92, Energizer Industrial EN92, Duracell
MN2400, or Duracell Procell PC2400 alkaline batteries
in the FireHawk M7 HUD. Use of other batteries, or a
combination of batteries from different manufacturers,
will affect the performance of unit and void the
Intrinsic Safety Approval.
7. Insert the battery cartridge into the battery tube on the
FireHawk M7 HUD.
8. Before installing the battery cap, verify that the o-ring
is in place and free of damage and debris. If the o-ring
is missing or damaged, replace o-ring. Failure to do so
may allow moisture or contaminants into the battery
tube and cause the device to not function properly.
9. Thread the battery cap on to the battery tube of the
FireHawk M7 HUD (clockwise). Hand-tighten cap until
snug. Do not over-tighten battery cap.
10. As the battery cap makes contact with the battery car-
tridge, verify that the FireHawk M7 HUD display turns
on and goes through its start up sequence before
turning off. The yellow LED should not be flashing.
Replacing the Battery in the FireHawk M7 I-HUD
Replace the batteries in the FireHawk M7 HUD or I-
HUD when the low battery LED flashes. Use only rec-
ommended battery types. Change the batteries in a
non-hazardous area only. Failure to follow this warn-
ing can result in serious personal injury or death.
23
TAL 1705 (L) Rev. 18 - 10082858
Left Hand Lights
Right Hand Lights
G
G
G
76% to 100%
Full Cylinder, 3 Green Right Side LED
G
G
75% to 51%
3/4 Full Cylinder, 2 Green Right Side LED
Y
Y
34% to 50%
1/2 Full Cylinder, 2 Yellow Right Side LED
Flashing Continuously
R
33% to 0%
1/4 Full Cylinder, 1 Red Right Side LED
Flashing Continuously
Y
Low Battery
Left Side Yellow LED
Flashing Continuously
O
PASS Pre-Alarm
Orange Left Side LED
R
O
Evacuate
Red and Orange Left Side LED
Flashing Alternating
Chart 2: FireHawk I-HUD LED Patterns
Содержание FireHawk M7
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