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0611 RM500SL User’s Guide Version 2.8 Page 48
9.5
S
pectral
a
nalysis
in Multicurve
FastFacts 9.5: Spectral analysis in Multicurve
9.6 Battery drain test
FastFacts 9.6: Battery drain test
Selecting a stimulus level of 0 dB (off) in [Multicurve] presents a spectral analysis
of the coupler microphone signal (Scale = dB SPL) or the difference between the
coupler and reference microphone spectra (Scale = dB Gain).
If the stimulus type is [Pink noise], the analysis is performed in 1/12
th
octave bands
and displayed in real time. Pressing <Continue> captures the displayed spectrum.
If the stimulus type is [Swept], a swept filter analysis is performed in 1/12
th
octave
bands and displayed at 1/3
rd
octave frequencies. Pressing <Continue> causes the
swept filter analysis to be performed in 1/12
th
octave bands and displayed at 1/12
th
octave frequencies.
The battery drain test automatically measures the battery current when there is no
input signal (quiescent), when the input signal is a 1 kHz tone at 65 dB SPL and
the average of the currents when the input signal is 90 dB SPL at the HFA or SPA
frequencies (Avg @ 90 dB). Battery life is estimated assuming 80% quiescent and
20% Avg @ 90 dB use. Optional battery pills are required.
With the hearing instrument set as normally used:
1) Install and connect the proper battery pill. See 2.5: Battery pill use and care
2) Highlight and <PICK> Battery drain from Hearing Instrument Tests list.
3) Highlight and <PICK> [Battery type] and select from drop-down list.
4) Highlight and
<PICK> [Hours
per day] and
select from drop-
down list.
5) Highlight and
<PICK> [Start
test]