Frye FONIX 7000 - Manual (Page 120)

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FONIX 7000 Hearing Aid Analyzer
5.1.5 Running an ANSI 87 Test
After leveling the sound chamber as described in Section 5.1.1, setting up the
aid as described in Section 5.1.2, and setting up the analyzer as described in
Section 5.1.3, follow these instructions:
1. Press [START] from the ANSI 87 screen to start the test.
2. If you have enabled the telecoil test, do the following when the sequence
stops for the telecoil measurement. Otherwise, skip to step 3.
a. Open the lid of the sound chamber.
b. Switch the aid to telecoil mode.
c. While viewing TCOIL 10 mA/m near the upper right corner of the screen,
try many positions for the hearing aid, near the reference point, until you
find the position that gives the highest output with the least variability.
Usually the best position is with the hearing aid held in the vertical posi-
tion.
d. Hold that position and press [START]. This measures the telecoil output.
e. Switch the aid back to normal, microphone mode.
f. Press [START] to resume testing.
3. Depending on the aid type selected and the gain of the hearing aid, the
ANSI sequence may stop for you to adjust the gain control to the reference-
test. If the sequence stops:
a. Open the lid of the sound chamber.
b. While viewing the HF AVG readings in the lower center of the screen,
turn the gain control on the aid down until the MEASURED value match-
es the TARGET value within 1 dB.
c. Close the lid. If the MEASURED number is still correct, press [START] to
complete the test sequence.
5.1.6 Viewing ANSI Results
The test results for ANSI 03, ANSI 96, and ANSI 87 have a similar display. Here
is an explanation of the ANSI 03 results (Figure 5.1.6):
1. OSPL 90 curve: Full-on gain frequency sweep taken at 90 dB SPL.
2. RESP 60 curve: Reference test gain frequency sweep taken at 60 dB SPL.
3. SPLITS curve: Frequency response of the telecoil.
4. Aid type (selected with F2)
5. OSPL 90 MAX: Amplitude and frequency of the maximum output of the aid.
6. OSPL 90 HFA/SPA: Three-frequency response of the OSPL 90 curve.
7. HFA/SPA FOG: Full-on gain three frequency average and the amplitude at
which it was taken.
8. RTG Target: Target reference test gain