5-8
Taking a Measurement
Model 820 Technical Reference Manual
Step 1
Press
U
and
K
and examine these values for
the current reading:
Step 2
For the second screen, press the
r
key:
The value for the UWPK is set in
parameter 64 and is 85 dB. This
value was reached 30 times.
L
n
L
n
values are determined by parameters 55-60 and should be
examined next in our current measurement.
Step 1
Access L
n
by pressing the
B
key and a screen
similar to the following will appear:
Parameters 55-56 in this example
were set to 5 and 10 respectively.
This screen shows their values in
this measurement. These indicate
the sound pressure levels that were
exceeded 5 and 10% of the mea-
surement duration.
Step 2
Press the
r
key to access the second screen of
three:
Parameters 57-58 were set at the
given values shown in the screen
and their readings are apparent.
Press the
r
key to see the third
screen and the values recorded
there.