Frye FONIX FP40D - Manual (Page 106)

98 FONIX FP40 Portable Hearing Aid Analyzer
8. Plug a 50-ohm insert earphone into the external speaker jack on the back of the FP40. An
adapter may be needed if you are taking the insert earphone from an audiometer.
9. Insert the larger coupler microphone into HA-2 coupler.
10. Attach insert earphone plastic tip to the tubing of the HA-2 coupler. See Figure 5.6.1.1B.
11. Press F5 to enter PROBE mode.
12. Press F1 to enter MENU.
13. Press F4 to enter CAL MIC(S).
14. Press F7 to select HA2 ER3A.
15. Press [START/STOP] to begin measurement. A WAIT message will appear on your screen.
When this message disappears, the coupler measurement has been taken and stored into per-
manent memory.
16. Press F1 to exit the menu.
5.6.1.2 To perform the real-ear measurement
1. Plug a 50 ohm insert earphone into the external speaker jack on the back of the FP40. If you
are using an insert earphone from an audiometer, you may need to use an adapter.
2. Press F4 to enter Target screen from the Probe screen.
3. Press F7 to enter Target 2-cc screen.
4. Press F3 to enter RECD mode.
5. Press F3 to toggle MEASURED RECD.
6. Insert the probe microphone into the client’s ear.
7. Insert the custom earmold or foam eartip coupled to the insert earphone into client’s ear. See
Figure 5.6.1.2A.
8. Press [START/STOP] to perform measurement.
9. Both the curve and the numerical data will appear on the screen. See Figure 5.6.1.2B.
10. Unplug the insert earphone from the analyzer when done.
11. Press F1 to return to the Target 2-cc screen.
If you have previously performed the RECD and want to enter the data into the RECD screen with-
out taking the measurement again, use the FREQUENCY and AMPLITUDE knobs.