Operation Manual MA 25/MA 25e
MA 27/MA 27e
8104818 Rev. 4
15
19/10/2017
Table 2 Available Components
Available Components
AC Headphones DD45*.
AC Headphones DD45 with HB-7-headband*
Holmco 8103 Headphones*
DD65 Headphones*
AC Power Adapter, UE24WCP Type
USB cable
Operation Manual
Quick Guide
Patient Response Switch*
Only for MA 25/MA 25e:
Carrying bag
3 batteries inside the device
*
Applied part according to IEC/EN 60601-1
Table 3 Replacement Parts and Disposables
Replacement Parts and Disposables
Ear Cushion Cover
Audiogram Pad
4.2 Hardware and Accessories
4.2.1 Where to Setup
The MA 25/MA 25e and MA 27/MA 27e should be operated in a quiet room, so that
the audiometric examinations are not influenced by outside noises. Ambient sound
pressure levels in an audiometric test room shall not exceed the values specified in the
norm ISO 8253-1:2010 or ANSI S3.1-1999. For use in noisier environments,
headphones with optional sound insulation muffs are available.
Devices, which emit strong electromagnetic fields (e.g. cellphones, microwaves or
radiotherapy devices), can influence the function of the audiometer. Therefore, it is not
recommended to use these devices in close proximity to the audiometer as it may lead
to incorrect test results.
The test room must be at a normal temperature, usually from 15° C/59° F to 35 °C/95° F,
and the device should be switched on approximately 10 minutes before the first
measurement. For further information on use after transport and storage see section 4.2.2.
External devices such as a computer, printer or Ethernet
which are connected to the device must meet electrical safety
requirements, such as IEC 60601-1 or UL 60601-1. This is to
avoid electrical shock to the user or the patient.
WARNING
