Setting up the KA450 appliance

Please note!

Do not place the appliance in one place:

where it is exposed to direct sunlight
where it is exposed to moisture
where it is placed close to heat sources such as radiators
which is poorly ventilated

There are different ways of setting up the KA450 depending on the space available:

The patient and the examiner sit directly opposite each other or offset, with the examiner having the device directly in front of them
The patient sits in a hearing test booth. The examiner sits outside the booth and has the audiometer directly in front of them. The examiner has eye contact with the patient through a window in the booth.

Please note!

In order to achieve reliable audiometric measurement results on test subjects, the KA450 must be set up in a room that is as free as possible from background noise. The best measurement results are obtained by using a hearing test booth. Ask your sales partner.

Setting up the speakers

The free-field loudspeaker boxes must be directed towards the patient at an angle of 90° to the sound emission surface and must be positioned at head height to the patient. The distance between the loudspeaker box and the patient should be in the range of 1 - 1.5 m.

Warning!

The necessary connections between the audiometer, the hearing test chamber and the applied parts must be made by a person authorized by the manufacturer. Please contact the manufacturer or its sales partner.

Please note!

As the calibration of the free-field loudspeakers depends on the distance to the patient, calibration is always carried out on site.