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HP RM500SL User Manual

Page 48

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0611

RM500SL User’s Guide Version 2.8

Page 48

9.5

Spectral analysis 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 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 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 Battery drain from Hearing Instrument Tests list.

3) Highlight and [Battery type] and select from drop-down list.

4) Highlight and

[Hours
per day] and
select from drop-
down list.

5) Highlight and

[Start
test]