User Screen; Measurement Screen - Phonak Serenity SafetyMeter User Manual

6 "Attenuation control" mode
Press both headphone cups together, then start the calibration process.
If the calibration is not successful follow the on-screen instructions.

6.6 User screen

The 'DWOM Nr.' is a unique identifier that links a hearing protection device to a specific user.
The DWOM is printed on the user-label of each device, in both barcode and text form.
We recommend acquiring the 'DWOM Nr' using a barcode reader in order to avoid mistakes.
You can also enter this number manually (it is the 10-digit number below the barcode).

6.7 Measurement screen

Click the blue-tagged probe into the user's
Click the red-tagged probe into the user's
User inserts ear shells with the probes attached.
Verify that the shells are correctly positioned in the user's ear and that the probes are
clicked in.
Place the headphones over the user's ears. If ear-jewelry interferes with the headphones,
kindly ask the user to remove it.
Instruct the user to remain quiet (no speaking or chewing) during the measuring
process.
"Click to start measuring' initiates the attenuation control process.
The 'Measurement and results' screen shows:
A graph of the attenuation provided by each ear shell, displayed in decibels across the
frequency range .
e
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left ear shell.
right ear shell.
6 "Attenuation control" mode
The protection status for Right and Left ears
the protection is valid
The noise reduction level – in dB – of each ear shell is provided for information
The Personal Attenuation Rating (PAR) is a single number rating that approximates the
SNR or NRR attenuation values as measured per ISO 4869 or per ANSI S3.19-1974
The PAR expresses the amount of noise reduction – combined for both ears – which the
device under test provides to its user.
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:
r
the protection is invalid
.
t
u
.