Calibration 179
Figure B.1.C—Adjusting the reference pot with a Phillips-head screwdriver.
5. Remove the reference microphone from the adapter and turn off the calibra-
tor.
6. Attach a new probe tube to the probe microphone.
7. Thread the probe tube through the edged side of the probe microphone
adapter so that the probe tube sticks out a couple of millimeters from the
other end of the adapter. See Figure B.1D.
Figure B.1D—Calibrating the real-ear probe microphone
8. Secure the probe tube in place by putting a dab of Fun-Tak on the edged end
of the adapter.
9. Insert the probe microphone adapter with the attached probe microphone
into the calibrator.
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