104 FONIX FP35 Hearing Aid Analyzer
LONG SETTLE—The time delay between the frequencies of three frequency aver-
ages and distortion measurements.
PRINT LABEL— Status of the printing label. Choose ON or OFF.
PRINTER— Printer used for printouts. Choose INTERNAL to use the built-in
thermal printer. Choose EXTERNAL to use an attached laser or ink-jet printer.
4.3 JIS Testing
The JIS 2000 automated test sequence allows you to test hearing aids according
to the Japanese Instrument Standard.
To enter the JIS screen, look at the function key labels above [F4] and [F5] in
the Opening screen. If one of them reads “JIS,” press it to enter the screen.
Otherwise, press and hold down [F4] or [F5] until a function key balloon menu
appears. Use the arrow keys to select JIS, and press [START/STOP] to enter the
screen.
4.3.1 Viewing the JIS Display
Refer to Figure 4.3.1A and Figure 4.3.1B for the following explanation of the
graphical display.
1. OSPL 90 curve: full-on gain frequency sweep taken at 90 dB SPL.
2. FOG: full-on gain curve taken at 50 or 60 dB SPL. Select with [F2].
3. RESP: reference test gain frequency sweep taken at 60 dB SPL.
4. Aid type. Select with [F1].
5. CPLR: coupler typed used. Select in menu.
6. FOG: level with which the full-on gain curve was measured
7. REF: reference frequency used
8. Leveling status.
9. OSPL90 500: frequency response of OSPL90 curve at 500 Hz
10. OSPL90 REF: frequency response of OSPL90 curve at reference frequency
(1600 or 2500 Hz). Select with [F3].
11. OSPL90 MAX: amplitude and frequency of the maximum output of the aid.
12. FOG CALC: target reference test gain
13. FOG MEAS: measured reference test gain
14. EIN: equivalent input noise measurement
15. LIM: response limit level determined by taking the frequency response of
the RESP 50 (or 60) curve at the reference frequency and subtracting 15 dB.
F1: frequency at which the RESP 50 (or 60) curve crosses the response limit
level on the way up.
