•
Remove the battery from the device (see the "Insert-
ing / Changing the Battery" chapter) before you put the
device and the accessories away in the case which is
supplied in a clean, dry place that is out of the reach of
children and animals.
Troubleshooting
Problem
The trans-
mitted noises
start to lose
volume, they
cannot be
heard at all
or they are
distorted.
Technical Data
•
Model number:
•
Article number:
•
Voltage supply:
•
Sound pressure level:
•
Biggest acoustic
amplifi cation (dB):
•
Noises (dBSPL):
•
Total harmonic
distortion (THD):
•
Frequency range (Hz):
Possible cause / solution
•
Are the batteries too weak or
incorrectly inserted?
Insert a new battery (see the Inserting /
Changing the Battery" chapter).
•
Does the earplug fi t correctly in the
auditory canal?
Correct the fi t of the device (see the
"Use" chapter).
ZDC-900
Z 02599
1.4 V DC (1 battery,
PR41(A312) type)
123 dB (± 4 dB)
43 dB (± 5 dB)
≤ 32 dB
≤ 10 % (800 Hz)
≤ 10 % (1600 Hz)
100–4300
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