Chapter 3 – Taking Measurements
Measurement Settings
30
Brüel & KjærIntegrating Sound Level Meter Type 2239 A
User Manual
The current frequency weighting is displayed in the bottom left-
hand corner of the Measurement Window (see Fig. 3.8).
To Change the Frequency Weighting:
1. Make sure measurement has stopped (as shown in
Fig. 3.8). If the instrument is measuring, then press
to
stop it.
2. Press until the Frequency Weighting Set-up Window
is visible on the screen, as shown below.
3. Press or to step through the frequency weighting
settings (
A, C).
4. To store the new frequency weighting, press . You will
then return to the Measurement Window. (If you prefer to
cancel your changes and return to the old frequency
weighting, press ).
Fig.3.8 The Measurement window with a fast time weighting selected and
with measurement stopped
Fig.3.9 The Frequency Weighting Set-up Window
STOP 00:05:41
MaxP 94.7 dB
AF Leq 45.8 dB
30 100
SET-UP
Freq. Weighting
>A
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