Model 820 Technical Reference Manual
Setting and Viewing Advanced Functions
7-7
set to “No” to get the full desired
period.
Step 8
To view Interval Histories after a measurement has
been taken, press
M
. A screen similar to the one
below will appear:
Eight screens are available from
the INTV mode. The screen at the
left gives the Time and Date of a
given Interval. Duration, L
eq
, L
min
and L
max
, Peak and UWPK, and
the level setting measurements.
Step 9
Examine the data available in each INTV. Press
r
and scroll to each. The
l
will also work and the
scroll is a loop.
INTV-a gives time, interval num-
ber and date
INTV-b gives duration and interval
number
INTV-c gives SEL and L
eq
.
INTV-d gives min and max level
and the number of times level went
over RMS exceedance 1.
INTV-e gives peak and unweighted
peak levels.
INTV- f-h gives statistical informa-
tion.
