Interacoustics Eclipse EP25 User Manual

11.6 Technical specifications ASSR
Medical CE-mark:
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.
Standards:
Test signal:
IEC 60645-3:2007
AEP
IEC 60645-7:2009, Type 1.
EPA Preamplifier:
Two channels standard:
EPA4 Cable Collector (4 electrodes). Standard 50 cm. Option: 5 cm or 290
cm
One Channel (optional):
EPA3 Cable Collector (3 electrodes). 50 cm
Gain:
80 dB/60 dB
Frequency response:
0,5 - 5000 Hz
CMR Ratio:
Minimum >118 dB. Typical 130 dB < 100 Hz
Radio frequency
immunity:
Typically 25 dB improvement over previous available designs
Max input offset voltage:
2,5 V
Input impedance:
10 MΩ/ 170 pF
Impedance measurement:
Waveform:
Rectangular
Measurement current:
19µA
Range:
0.5 kΩ – 25 kΩ
Stimulus:
Stimulus rate:
40 or 90 Hz
Transducer:
Ear Tone ABR insert phone, calibrated on an IEC 711 coupler.
HEADPHONE with independent calibration (optional)
Bone conductor (optional)
Level:
0 – 100 dB nHL in 5 dB steps.
NB CE-Chirp® Freq.:
500, 1000, 2000, and 4000 Hz, both ears same time.
Bandwidth:
1 octave ± ½ octave – 3 dB
Masking:
White noise 0 – 100 dB SPL
Analysis Time:
6 minutes to detect a ASSR signal – can be extended up to 15
minutes
Recording:
Sampling frequency:
30 kHz
Artifact Reject System:
Standard voltage based system
Gain:
74 – 110 dB. Auto or Manual selection.
Channels:
2, with separate detection algorithm
Algorithmic Sensitivity:
99% or 95% , false pass probability
Rejection levels:
Manual 5, 10, 20, 40, 80, 160, 320, 640 µV input
Anti- aliasing filter:
Analog 5kHz, 24 dB / octave
Display:
Independent control of up to 8 simultaneous stimuli (max 4 per ear)
Display Gain:
Independent start, stop control for each of the 8 stimuli
Controlled parameters:
Stimulus level control for each of the 8 stimuli
False pass probability 1 or 5%
Test protocols included for children and adult
Noah:
Noah 4 compatible
Note ! The transducer is dedicated to one Eclipse only! Calibration is stored on the Eclipse. Replacing the
transducer will require new calibration of the transducer connected to the Eclipse.

Interacoustics Eclipse EP25 Specifications

General

Brand	Interacoustics
Model	Eclipse EP25
Category	Medical Equipment
Language	English