FONIX® 8000 - Frye Electronics

152 FONIX 8000 Hearing Aid Analyzer
Figure 8.2.2—Placing the reference and probe microphones
8.2.3 Inserting the probe tube
There are several different methods used for properly inserting the probe tube.
Here are two easy methods.
Method 1
1. Place an unattached probe tube on a flat surface along with the client’s
earmold or shell.
2. Place or hold the ear mold next to the probe tube, so that the tube rests along
the bottom of the canal part of the earmold with the tube extending at least
5 mm past the canal opening. If there is a large vent, you can slide the tube
down the vent until it protrudes at least 5 mm past the canal opening.
3. Mark the probe tube where it meets the
outside surface of the earmold with a
marking pen. See Figure 8.2.3A.
4. Attach the probe tube to the body of the
probe microphone.
5. Attach the probe microphone to the round
Velcro pad on the earhook.
6. Insert the probe tube (without the earmold
or aid) into the client’s ear so that the mark
is at the location where the bottom of the
outer surface of the earmold will be, once the
earmold is in place.
Figure 7.2.3A—Marking the probe tube