3.4.3
Battery signals
The communication unit offers the following battery warning
thresholds:
Battery warning 1 at a battery voltage of approx. 25 %
The LED lights up in orange. Every 5 minutes an acoustic signal
sounds.
After the first warning the communication unit still has power for
approx. 1,5 hours of operation.
Battery warning 2 at a battery voltage of approx. 10 %
The LED flashes orange. Every 25 seconds an acoustic signal
sounds.
Dräger recommends exchanging the batteries after the first warning.
Shortly after the first warning, the communication unit deactivates.
The volume of the earphones decreases as the battery voltage
becomes lower.
3.5
After use
Clean the communication unit (see chap. 5.2 on page 34).
4
Troubleshooting
Fault
Cause
General
Communication unit
Batteries depleted
cannot be switched
Batteries not inserted
on
correct way round
ON/OFF button soiled Clean ON/OFF
Dräger FPS-COM 7000
Fault
No voice amplifier unit Temporary HazMat
Voice amplifier unit
too unclear
Earphone too quiet
No output to
earphone
Remedy
Replace batteries.
Insert batteries
according to
markings.
button.
Troubleshooting
Cause
Remedy
Restart
mode selected (see
communication unit
chapter 3.1.6 on
without HazMat
page 28)
mode.
Communication unit
Change configuration
configured for HazMat
with PC software.
mode
Loudspeaker/
Clean communication
membrane soiled
unit.
Water in loudspeaker Allow communication
unit to dry.
Volume set too low
Check volume and
adjust if necessary.
Position of earphone
Correct position of
incorrect
earphone.
Battery voltage too
Replace batteries.
low
Incorrect
Check configuration
configuration (e.g.:
with PC software and
earphone fitted on
change it.
left, however,
communication unit is
configured for output
to right earphone)
Earphone faulty
Replace earphone.
31