Frye FONIX FP40D - Manual (Page 36)

28 FONIX FP40 Portable Hearing Aid Analyzer
2.7 Using the DATA button
Although it’s usually more useful to display test results in the familiar graph format, it can often be
useful to look at the actual numerical data. You can do this in the Main Coupler Screen or in the
real-ear measurement screens.
To switch back and forth between graphical and numerical data format, press the DATA/GRAPH
button on the FP40 main panel. See Figure 2.7.
Figure 2.7—DATA coupler screen
Notes:
• Only one measurement curve can be displayed in numerical format at a time. When working
with multiple measurement curves, select the curve you want to view with F6 in the Main
Coupler Screen and F3 in a real-ear measurement screen.
• The DATA/GRAPH button only works in the Main Coupler Screen and the real-ear measure-
ment screens. You can’t use it to view numerical data in an automated test sequence screen.
2.8 External Sound Chamber or Speaker
If you are in a noisy testing environment, it might be useful to have an external sound chamber.
The 6040 sound chamber has better sound isolation than the standard internal sound chamber of
the FP40. It also has a larger work space in the chamber, which makes it easier to take aids in and
out of the chamber.
When performing real-ear measurements, it’s often more convenient to have an external speaker
on a swing arm or a floor stand so you can move the speaker around the patient, rather than the
patient around the speaker. This makes external speakers convenient for clinicians who don’t move
their analyzers around often.