Technical Data; Tone Frequency And Output Capacities; Tone Presentation; Sound Output - Electronica Technologies 9910 Bedienungsanleitung

ELECTRONICA-Technologies

7. Technical data

7.1.

Tone frequency and output capacities

125 250
Hz
Min
(HLdB)
Max
70
(HLdB)
The sound levels are expressed in HLdB, i.e. Hearing Level in decibels. This is what is
known as a compensated curve, where "0 dB" for each of the frequencies corresponds to
the minimum hearing threshold of an otologically healthy subject (definition according to
standard EN 60645-1). The sound levels can be adjusted in 5dB steps.
7.2.

Tone presentation

Digitally controlled pure sine tone- continuous or pulsed mode.
Silent pushbutton controlled left/right side delivery.
7.3.

Sound output

6.35 mm stereo jack(1/4 inch).
7.4.

Patient feedback (Accessory as an option)

Via a pushbutton, which is connected via a 1.2 meter lead to a 3.5 mm jack
7.5.

Power supply

Standard: external power adapter supplied with the device (100-250 V~/15V - 500
mA minimum, EN60601-1). Only use the custom power adapter contained into
the carry-case.
Optional feature: NiMh battery cell.
- operating life of over 10 hours under normal conditions of use.
- battery cell requiring no specific handling other than charge-up.
- recharge time: 4½ hours maximum (if the battery is completely discharged).
-Lifetime: The battery can be charged up 1000 times approximately.
-The voltage threshold indicating that the battery must be rechargeable, is 8V.If the
battery is discharged, display screens "4" and "7" are flashing, displaying "Battery"
when attempting to press a key.
7.6.

Calibration

Via air conduction according to standard ISO 389-1
7.7.

Environmental performance conditions

Storage temperature: -10° to 60°C
Working temperature: 15° to 35°C
Relative humidity: between 30% and 90%
Air pressure: 98kPa to 104 kPa
Audiometer 9910
Rev. January 2017
500 750
90
1K 1.5K 2K
-10
100
Version EN1_H
Series 9000 AUDIOMETERS
3K 4K 6K
90
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8K