Precautions During Use; Using The Air Mask - MSA FireHawk M7XT Fonctionnement/Entretien

PRECAUTIONS DURING USE

NOTE: If the breathing apparatus or any component fails, mal-
functions, or becomes damaged, contact MSA at 1-877-672-
3473 (FIRE) or email customer service at info@MSAsafety.com.
SCBA products may be considered hazardous material. In addi-
tion, U.S. Department of Transportation exceptions and
approvals may apply to SCBA products. Please contact cus-
tomer service at 1-877-672-3473 (FIRE), or visit
www.MSAnet.com/prism, for more information.
Periodically check the pressure indicated on the FireHawk
M7XT chest mounted pressure indicator.
• Air flow in the air mask is reduced: Immediately open the
Firehawk Regulator bypass. Immediately return to fresh air.
• Air mask free-flows: Immediately return to fresh air.
• Audi-Larm Alarm Rings: Immediately return to fresh air.
• FireHawk M7 HUD or I-HUD low pressure indicator lights
and flashes red: Immediately return to fresh air.
• FireHawk M7XT Control Module alarm button flashes red:
Immediately return to fresh air.
Periodically check the pressure indicated on the FireHawk M7
HUD or I-HUD and FireHawk M7XT chest-mounted pressure
indicator during use. The FireHawk M7XT Control Module con-
tinually displays the cylinder pressure while the FireHawk M7
HUD or I-HUD indicates when each successive alert cylinder
pressure level (see Chart 1 for FireHawk M7 HUD or Chart 2 for
I-HUD) of the total cylinder pressure has been reached for 20
seconds. When the needle on the FireHawk M7XT chest-
mounted pressure indicator reaches the red zone on the
gauge face the Audi-Larm Alarm will begin ringing, the
FireHawk M7 HUD or I-HUD will display a flashing red LED, and
the alarm button on the FireHawk M7XT Control Module and
buddy lights on the FireHawk M7XT Power Module will flash
red. When the Audi-Larm Alarm starts ringing or when the
pressure reaches approximately 33% of the rated service pres-
sure, return to fresh air.
The FireHawk M7 HUD or I-HUD, FireHawk M7XT Control
Module, and Audi-Larm Alarm indicate when cylinder pressure
drops below these approximate values:
o 785 psi-approximately (2216 psi system)
o 1600 psi-approximately (4500 psi system)
When the FireHawk M7 HUD or I-HUD, FireHawk M7XT Control
Module, or Audi-Larm Alarm indicates 33% cylinder pressure,
immediately return to fresh air.
NOTE: Air mask available service time is greatly reduced when
the Firehawk Regulator bypass is used.
Leave the contaminated area immediately if:
• Breathing becomes difficult
• Dizziness or other distress occurs
• You taste or smell the contaminant
• You experience nose or throat irritation
• SCBA not functioning according to the
instructions or training
Misuse can result in serious injury or death.

USING THE AIR MASK

WARNING
NOTE: See NIOSH Approval Label, Inserted in the Users
Instructions for complete list of CAUTIONS and LIMITATIONS
for the respirator.
Misuse or abuse of the FireHawk M7 HUD or I-HUD, the
FireHawk M7XT Control Module, FireHawk M7XT Power
Module, or the equipment to which they are attached, or
using this equipment in a manner or situation not intended
by the manufacturer, may result in damage to the equip-
ment or may result in personal injury or death to user or
persons dependent on the user or damage to the
equipment.
• Always inspect the FireHawk M7 HUD or I-HUD,
FireHawk M7XT Control Module, and FireHawk M7XT
Power Module for damage before use. If damage is
found, immediately remove the device from service.
• DO NOT alter these components. Altering will void the
Intrinsic-Safety rating and may affect the Intrinsic-Safety
of the device.
FIREHAWK M7 HUD OR I-HUD
FireHawk M7 HUD or I-HUD Functionality
1. The FireHawk M7 HUD or I-HUD allows the user to see the
cylinder pressure while the air mask is in use. The FireHawk
M7XT Control Module wirelessly communicates with the
M7 HUD or I-HUD. Both the FireHawk M7 HUD and I-HUD
display the cylinder pressure in one quarter cylinder incre-
ments, by an LED pattern.
• As each quarter cylinder pressure has been reached,
down to 50%, a unique LED pattern will be displayed for
approximately 20 second before extinguishing. The dis-
play can be refreshed by pressing and holding the
mode button (green) on the FireHawk M7XT Control
Module for approximately three seconds.
• Just before 33% of the rated service pressure has been
reached, a single flashing red LED will be displayed and
will continue to flash until the unit is turned off or the
cylinder has been refilled.
• The FireHawk M7 HUD or I-HUD must be within approxi-
mately 18 inches of the FireHawk M7XT Control Module
to properly receive the signal being transmitted.
2. Both the FireHawk M7 HUD and I-HUD have a buddy light
that flashes red when the air mask has reached 33% of the
rated service pressure. This buddy light is not visible to the
user while the air mask is in use.
3. When the user of the air mask remains motionless for
approximately 20 seconds, the PASS pre-alarm will begin
to sound. During this pre-alarm, the FireHawk M7 HUD or
I-HUD will display an orange LED, and this LED will extin-
guish when full PASS alarm has been reached or the pre-
alarm has been reset.
15
WARNING
WARNING
MSA 314 (L) Rev. 2 - 10128861