11-6 Time History Setup Model 831 Manual
Note that the values 2.5 ms, 5 ms and
10 ms will only appear when the
optional firmware 831-FST has been
enabled. As you scroll downwards,
when the highlight reaches the
bottom of the window, the list will
scroll upwards to reveal additional
values.
Milliseconds
2.5, 5, 10, 20, 50, 100, 200, 500
Seconds
1, 2, 5, 10, 15, 20, 30
Minutes
1, 2, 5, 10, 15, 20, 30
Hours
1, 24
Highlight the desired increment of time and press
5 to
make the selection.
Interval Time Sync
The setup to implement Interval Time
Sync for both Time History and
Measurement History is described in
the section "Interval Time Sync” on
page 12-2.
The interval time sync feature ensures that all measurement
records, except the first, will begin at a time of day equal to a
multiple of the measurement time selected. For example, if
the measurement time is five minutes, and the measurement
begins at 08:14:00 (h:m:s format), the first measurement
will be cut short such that the subsequent measurements will
begin at 08:15, 08:20, 08:25, etc.
Linear Integration Only
When the time history interval has been selected to be 10 ms
or less, the integration method must be linear. If it is set to
exponential when the time interval is set to one of these
lower values, the message “Settings Conflict. Fix
Automatically?” will appear. Reply Yes to change to linear
and continue the setup process.
Select Time History Metrics
The metrics available for selection
are described in "Metrics Logged”
on page 11-1.
The Time History Options Menu is used to select, one-by-
one, the metrics to be measured for each time increment.
Highlight the Time History Options window and press
5.
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