WinCHAP User’s Manual The DSL/NAL-NL1 Module 69
FP35 and 7000 Analyzers
The coupler measurement part of the RECD on the FP35 and 7000 analyzers is
made according to the calibration procedure described in the Operator’s Manual
of the analyzer. WinCHAP merely gathers this data when the real-ear part of the
RECD measurement is performed.
6.2.4.2 To perform the real-ear measurement (all analyzers)
1. Position the earhook on the client’s ear. Attach the probe microphone to
the earhook. The reference microphone is not used in this measurement.
2. Insert probe tube into client’s ear.
3. Insert the client’s custom earmold or a foam eartip into the client’s ear.
Attach the insert earphone. See Figure 6.2.4.2.
4. Open the RECD measurement window by clicking the
RECD button in the
Audiometry window.
5. Select Real-Ear in the RECD measurement window.
6. If you are using the 6500-CX or FP40, you can select the source level by
using the arrow buttons located to the left of the Real-Ear button.. The
default level of 70 dB SPL is recommended, but you should select the
level that was used for the coupler measurement. You cannot change the
source level used with the 7000 and FP35 analyzers; those analyzers will
always use 70 dB SPL.
6. Click Start Test. This will start the pure-tone measurement sweep.
7. Click Save Test to store the test results.
8. Click
Back to close the RECD window. If you performed the coupler mea-
surement, you will be asked if you wish to save it for future use. If you
click Yes, the measurement will be automatically appear the next time
you perform an RECD, even with another patient.
9. Make sure
Measured is selected next to the RECD button.
10. Click
Settings to open the Settings window.
• Under the General tab, the Transducer should be set to Insert
Earphone or Insert Custom Mold, depending upon whether you
used a custom mold.
• Under the NAL-NL1 tab, in the Measured RECD selection, choose
HA-1 if you used an HA-1 coupler without a custom ear mold, or
choose HA-2/own mold if you used an HA-2 coupler or an HA-1
with a custom ear mold in the measurement.
11. Click
Back to close the Settings window.
