Welch Allyn MicroTymp® 4 Tympanometer User Manual
DIR 80024157 Ver A
Page 31
Ear tips should be replaced after a single use.
The probe tip and its associated sealing washer are disposable devices. The probe tip should be
checked before each ear insertion to ensure it is undamaged and that none of the tubes through
it are blocked. It should be replaced if necessary.
The small holes through the probe tip must be kept clear. If these become blocked a warning
message will be displayed. The tip must be removed and cleaned or replaced.
To remove the tip, unscrew the nose cone and pull the tip off the probe boss. A small seal will
be found in the base of the probe tip. This should be examined and replaced if it is damaged. Do
not remove the nut securing the boss to the body of the instrument.
CAUTION
The sealing washer should be replaced when the probe tip is replaced if it shows
signs of wear, or if a pressure leak is suspected. When replacing the probe tip,
ensure that the seal is correctly located with the flat side aligned with the flat side
within the base of the probe tip. Push the probe tip over the boss and replace the nose cone.
Make sure that the nose cone is screwed home firmly but do not over-tighten. Do not use any
tools to tighten the nose cone.
After replacing the tip, a Daily Check should be carried out.
C
ALIBRATION AND
R
EPAIR OF THE
I
NSTRUMENT
Welch Allyn recommends that the MicroTymp 4 is calibrated annually. Please contact your Welch
Allyn distributor for details.
