Otodynamics Otoport Flex - Occlusion Test Procedure

Otoport OAE+ABR
User Manual for Otoport DP+TE model
167
Quality checks
Note:
If a signal is detected in the test cavity, ensure that ve
successful cavity tests are performed on the Otoport before
returning it to use. Ret the probe in the cavity between each
test.
Cavity tests should be run using a DP and a TE test type. Use stimulus
levels of 65-55 for the DP test.
17.4 Occlusion test
If the probe coupler is not tted correctly, sound may leak between the
probe loudspeaker and microphone. The Occlusion Test helps to check
that the probe is assembled and is performing correctly.
To occlude the probe place a nger rmly over the end of the coupler
tubes to block sound from being omitted from the ear piece and to prevent
ambient noise from being read by the microphone. Then start a test as
normal.
The Checkt size bar should be o󰀨 the scale to the right, indicating a very
low sound level and Check probe t should be displayed.
If so, the Occlusion Test has passed.
If not, check that the coupler is tted to the probe correctly, making sure the
coupler tube ends are fully occluded by a nger and that the environmental
noise level is low. It may be necessary to change the coupler tubes.
Repeat the test if necessary.