MSA 10114190 Quick Reference Manual Download

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FireHawk

M7 I-HUD

QUICK REFERENCE GUIDE

The FireHawk M7 I-HUD (Internal Heads-Up Display), located in the
Ultra Elite

or Ultra Elite XT Facepiece allows a user to see cylinder

pressure in regular pressure remaining increments, PASS pre-alarms,
battery status, and telemetry information (optional) while wearing
the air mask.

The FireHawk M7 I-HUD is compatible with FireHawk M7XT/M7 Air Masks
only.

*Model number is located on the back of the I-HUD Transmitter.

NOTE:

This quick reference guide provides user instructions for

the FireHawk M7 I-HUD receivers. Refer to the appropriate user
manual for complete instructions pertaining to FireHawk M7
I-HUD use.

FIREHAWK M7 I-HUD FUNCTIONALITY

1. The I-HUD allows the user to see the cylinder pressure while

wearing the air mask. The transmitter wirelessly transmits a signal to
the I-HUD (in the facepiece) while the air mask is in use. The I-HUD
displays the cylinder pressure in regular cylinder increments, by an
LED pattern.

• As each cylinder pressure increment is reached, a unique LED

   pattern will be displayed for approximately 20 seconds before
   extinguishing. The display can be refreshed by pressing the
   mode button on the transmitter (green on the FireHawk
   M7XT/M7 Control Module) approximately three seconds.

• When the End-of-Service-Time Indicator (EOSTI) service

   pressure is reached (33% for FireHawk M7XT, 25% for all
   others), a single flashing red LED will be displayed and will
   continue to flash until the unit is turned off or the cylinder is
   refilled.

• The I-HUD must be within approximately 18 inches of the I-HUD

Transmitter to properly receive the signal being transmitted.

2. The I-HUD has a buddy light that flashes red when the air mask

reaches the EOSTI. 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 (if an integrated

PASS is in use) will begin to sound. During this pre-alarm, the I-HUD
will display an orange LED, and this LED will extinguish when full
PASS alarm is reached or the pre-alarm is reset.

4. When an evacuation command is sent to the user (if an optional

telemetry module is in use), the I-HUD will display an alternating red
and orange LED until the evacuation is confirmed.

5. The I-HUD has a photo sensor that automatically adjusts the

brightness of the LEDs based on the intensity of the ambient light.

6. The I-HUD indicates a low battery condition by a single flashing

yellow LED. When the I-HUD Transmitter reaches a low battery
condition, a double flash of the yellow LED is displayed in the I-HUD.
If both the I-HUD and I-HUD Transmitter reach a low battery
condition, the I-HUD displays an alternating single and double flash
of the yellow LED. If this condition exists, return to fresh air, and
replace the batteries immediately.

7. The FireHawk M7 I-HUD is equipped with a self-test feature. Push

the green button for at least 3 seconds and release to initiate a self-
test routine. If the battery is low, the low battery LED will flash for 5
seconds after the self-test routine. The test feature is disabled if the I-
HUD is paired to an air mask.

INSTALLING AND REMOVING THE I-HUD

Installing the I-HUD

DO NOT use an I-HUD with a silicone Ultra Elite Facepiece
nosecup. The silicone nosecup will not provide adequate I-
HUD retention friction on the nosecup assembly. The
friction generated by the I-HUD retention arms will also
damage the body of the silicone nosecup. A Soft-Feel Hycar
nosecup must be used in conjunction with an I-HUD in an
Ultra Elite Facepiece. Ultra Elite XT Facepieces only contain
a Hycar nosecup.

1. Remove the nosecup and

unthread the speaking
diaphragm retaining ring
from facepiece.

CRANBERRY TWP., PENNSYLVANIA, U.S.A. 16066

For More Information, call 1-877-672-3473 (MSA-FIRE) or Visit Our Website at www.MSAsafety.com

MSA 715 (L) Rev. 4 © MSA 2017 Print Spec. 10000005196 (A) Mat. 10122587

Doc. 10122587

User Instructions

FireHawk M7XT Air Mask

10128861

FireHawk M7 Air Mask

10082858

Approved* HUD Transmitter