audioscan Verifit VF-2 - Spectral Analysis in Multicurve; Battery Drain Test

Verifit
®
User's Guide Version 3.12  November 2015
Spectral analysis in Multicurve
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 1/12th 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 1/12th octave bands and displayed at 1/3rd
octave frequencies. Pressing <Continue> causes the swept filter analysis to be performed in 1/12th octave bands
and displayed at 1/12th octave frequencies.
Battery drain test
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. With the hearing instrument set as normally used:
1. Install and connect the proper battery pill. See Battery pill use and care
2. Press <Tests>, then highlight and <PICK> [Test box measures], then highlight and <PICK> [Battery drain].
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