Technical Specifications Ep15/Ep25/Vemp - Interacoustics Eclipse Instructions For Use Manual

10.2

Technical specifications EP15/EP25/VEMP

Medical CE-mark:
Standards:
EPA Preamplifier:
Specifications as EPA4
Stimulus:
D-0120578-C – 2019/11
Eclipse – Instructions for Use - US
The CE-mark indicates that Interacoustics A/S meets the requirements of Annex II of the Medical
Device Directive 93/42/EEC.
Approval of the quality system is made by TÜV – identification no. 0123.
Test Signal:
AEP
Two channels standard
One Channel (optional)
Gain:
Frequency response:
CMR Ratio:
Radio frequency immunity:
Max input offset voltage:
Input impedance:
Power from main unit:
Impedance measurement:
Measurement frequency:
Waveform:
Measurement current:
Range:
Stimulus rate:
Envelopes/Windows:
Masking:
Transducer:
Level:
Polarity:
Click:
Tone Burst Frequency:
Tone Burst Stimulation
Time:
NB CE-Chirp® LS Freq.:
Broadband CE-Chirp®: LS
Relative Masking Level:
IEC 60645-3, 2007
IEC 60645-7, 2009. Type 1
EPA4 Cable Collector (4 electrodes). Standard 50 cm. Option: 5
cm or 290 cm
EPA3 Cable Collector (3 electrodes). 50 cm
80 dB/60 dB
0.5 – 11.3kHz
Minimum 100 dB. Typical 120 dB @55 Hz
Typically 20 dB improvement over previous available designs
2,5 V
10 MΩ/ 170 pF
Insulated power supply with 1500 V isolation. The signal is
digitally/capacitive insulated.
Selectable for each electrode
33 Hz
Rectangular
19µA
0.5 kΩ – 25 kΩ
0.1 to 80.1 stimuli per second in steps of 0.1.
Bartlett, Blackman, Gaussian, Hamming, Hanning, Rectangle and
Manual (Rise/Fall and Plateau)
White noise. Calibrated and presented in peSPL.
Insert phone, calibrated on an IEC 711 coupler.
Headphone with independent calibration (optional)
Bone conductor (optional)
20 – 135.5 dB peSPL, please refer to chapter stimulus maximum
intensity for converted nHL as this depends on the frequency.
Condensation, Rarefaction, Alternating.
100 µs (200Hz -11kHz)
250, 500, 750, 1000, 1500, 2000, 3000, 4000, 6000 and 8000 Hz.
Stimulation up to 780 ms
500, 1000, 2000 and 4000 Hz
200Hz -11kHz
+30dB to -40 dB relative to stimulus level. The stimulus level is
presented in nHL. The masking level is only presented in SPL,
and can therefore not exceed the loudness of the stimulus. E.g. a
stimulus presented at 100dBnHL, and relative masking level at
0dB would provide a masking level of 100dB peSPL. This would
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