Welch Allyn MicroTymp® 4 Tympanometer User Manual
DIR 80024157 Ver A
Page 33
E
RROR
M
ESSAGES
&
F
AULT
C
ONDITIONS
CAUTION
If a fault condition cannot be cleared, the operator is cautioned against repeatedly
starting the instrument. In some fault conditions the internal pump may
progressively advance towards the end of its travel to clear the fault. If the end of
travel is reached in such conditions the instrument may lock up and become un-usable.
If difficulties resolving fault conditions occur the equipment distributor should be consulted.
Message
Meaning / Action
PROBE NOT CLEAR
Please ensure the probe is not
blocked or obstructed
Examine the probe tip for blockages. If necessary,
remove it and clean or replace it. If the problem
persists, contact your Welch Allyn service center.
AIRFLOW ERROR
Unknown pump fault. Restart the
unit. If problem persists, contact
Welch Allyn
WARNING! CALIBRATION EXPIRED.
Recalibration needed before further
tests are performed
The current date is later than the next calibration
date. Check that the clock is set to the correct date. If
so, arrange for the instrument to be recalibrated.
Tests can still be performed.
“WARNING! BATTERIES LOW.
Recharge the batteries before
performing tests
Recharge the batteries immediately
Powering down
Other than after the specified power off delay, the
MicroTymp 4 may turn off because the internal
batteries are spent. To replace the batteries, contact
your Welch Allyn service center.
AIRFLOW ERROR.
Cannot determine pump direction. If
Pump fault. If the fault persists, contact your Welch
Allyn service center.
