Larson Davis System 824, Техническое справочное руководство

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9-16 824 Reference Manual 9/29/09
Measuring for a Preset Integration Time
The System 824 can perform an integrated measurement
over a preset time in either the LOG or SSA Mode by
making use of the Interval measurement feature. For a
detailed description of setting up for an interval
measurement, see the section ”LOG and SSA Interval
Settings” on page 7-36.
To measure a single interval, set Interval Autostop (Intv
Auto Stop) to
On as described in the section ”Intv Auto Stop
- (LOG, SSA)” on page 7-38. To measure and store data over
a series of equal time intervals, set Interval Autostop (Intv
Auto Stop) to
Off.
The interval time can be set from 00:00:01 hr:min:sec to
99:59:59 in steps of 1 second.
Timer Mode
The Clock/Timer Mode is used when it is desired that the
measurement begin at a preset date and time. This can
initiate either a single interval measurement or a sequence
depending upon whether the Interval Auto Stop is set to On
or Off, respectively.
Setup the measurement using the Clock/Timer Menu which
is accessed by pressing the
S
key, using the
u
or
d
keys to highlight Clock/Timer and pressing the
c
key
.
For details on the use of this menu see the section
”Clock/Timer” on page 3-23.