De luxe 3W50V1 - Инструкция по эксплуатации - Страница 72

4

Important safety instructions

Danger of hearing damage due to high volumes

This is a professional transmission system. Commercial
use is subject to the rules and regulations of the trade
association responsible. Sennheiser, as the manu-
facturer, is therefore obliged to expressly point out
possible health risks arising from use.

The HDE 2020 D and EK 2020 D receivers are capable
of producing sound pressure exceeding 85 dB(A).
85 dB(A) is the sound pressure corresponding to the
maximum permissible volume which is by law (in
some  countries)  allowed  to  affect  your  hearing  for
the duration  of  a  working  day.  It  is  used  as  a  basis
according to the specifications of industrial medicine.
Higher volumes or longer durations can damage your
hearing.  At  higher  volumes,  the  duration  must  be
shortened in order to prevent hearing damage. The
following are sure signs that you have been subjected
to excessive noise for too long a time:

• You can hear ringing or whistling sounds in your

ears.

• You have the impression (even for a short time

only) that you can no longer hear high notes.

Intended use of the devices

Intended use includes: 
• using the devices for professional purposes,
• having read this instruction manual, especially the

chapter “Important safety instructions” on page 2,

• using the devices within the operating conditions

and limitations described in this instruction
manual.

“Improper use” means using the devices other than as
described in this instruction manual, or under oper-
ating conditions which differ from those described
herein.

Tourguide2020_US.fm  Seite 4  Dienstag, 23. März 2010  11:56 11