Note:
Refer to chart 2 for the various audible and visual
indicators for the ICM Tx Unit.
Optional ID Tag (PN 10058545), for use with ICM Tx
Unit
Prior to pressurization of
the SCBA and during
inspection, the user can
“tag in” by depressing and
holding the top mode but-
ton (green) until the word
“data” appears in the dis-
play. While “data” is dis-
played, hold the ID tag as
shown in the picture below.
The ICM will sound a single
beep confirming that the ID
data has been read. If the word “data” disappears before
the ID tag has been read, the ICM Tx Unit has timed out
and the top mode button (green) must be depressed and
held again until “data” reappears.
Correct ID Tag Orientation
The ID tag is not designed to be taken into a fire. The
ID tag can also be used as accountability tag.
Pressure Display
1. Periodically check the pressure indicated on the ICM
Tx Unit display. It will display either remaining cylinder
pressure or calculated remaining service life.
2. When the pressure reaches 25% of the rated service
pressure, the NightFighter Heads-Up Display Receiver
will display one flashing RED LED.
3. When the NightFighter Heads-Up Display Receiver
displays one flashing RED LED, or when the pressure
reaches approximately 25% of the rated service pres-
sure, return to fresh air.
Changing the ICM Tx Unit Display Mode
1. Press the top MODE button (green) once. This will
momentarily refresh the NightFighter Heads-Up
Display Receiver display as well as light the ICM Tx
Unit display.
2. While the ICM Tx Unit display is still lit, press the top
MODE button (green) again. This will toggle the dis-
play between remaining cylinder pressure and calcu-
lated remaining service life.
The ICM Tx Unit has the ability to display calculated
remaining service life counting down to 0 psi or 25%
of the rated service pressure. The user must deter-
mine which option has been selected for the ICM Tx
Unit in service. Failure to follow this warning can
result in serious personal injury or death.
Actual time remaining may be less than the calculated
time displayed. Increases in breathing rate may reduce
remaining time more than expected. Use time indica-
tor as general guide only. The time displayed is based
on the continuation of the average breathing rate over
the last three minutes. Increases in the breathing rate
after checking the displayed time may result in less
remaining time than anticipated. Failure to follow this
warning can result in serious personal injury or death.
Starting Continuous Operations Mode
In Continuous Operations Mode, the life of the batter-
ies in the Nightfighter Receiver will be shortened.
Note:
The Continuous Pressure Display Mode can only be
activated when the system is pressurized. Activate the
Continuous Pressure Display Mode as follows:
1. Push the top MODE button (green) on the ICM Tx Unit
and hold button in for 3 seconds (or push the
Operation Button on the Nightfighter Heads-Up
Display System Transmitter). Once LED’s lights come
on, release button.
2. The NightFighter Heads-Up Display System Receiver
will show air cylinder pressure level. LED lights will
stay on to show air cylinder pressure level drop.
Turning Continuous Pressure Display Mode OFF
Note:
The Continuous Pressure Display Mode will deacti-
vate if low battery is present.
1. With the ICM Tx Unit in Continuous Pressure Display
Mode, push MODE button (green) on the ICM Tx Unit
and hold the button in for 3 seconds (or push the
Operation Button on the Nightfighter Heads-Up
Display System Transmitter). Release button once
LED lights go off.
2. LEDs will revert to Automatic Mode showing only air
cylinder pressure status at each 25% increment of full
cylinder pressure.
Note:
The NightFighter Heads-Up Display System will
automatically turn itself OFF, approximately 60 seconds
after the apparatus is depressurized. (The single red LED
light will flash at this time).
Low Battery Warnings
Replace the batteries in the appropriate device when
the low battery warning sounds. Use only recom-
mended battery types (see Description section of this
manual). Change the battery in non-hazardous area
DURING USE
13
TAL 709 (L) Rev. 4 - 10058881
