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10.2.1
Backward or forward clock change not crossing an hour
boundary
When the clock is changed, and an hourly boundary is not crossed, an additional log period entry is
not required.
Example: If the present time is 4:15 p.m. and clock is changed to 4:05 p.m. of the same day, the
daily flow record is the same. The log period entry reflects averages accumulated over 70-minutes (15
minutes plus 55 minutes).
10.2.2
Forward clock change crossing an hour boundary
This forces a log period entry for the part of the hour that has accumulated since the last hourly entry.
The flow computer then begins a new log record beginning with the new clock time.
Example: If the present time is 4:55 p.m. and the clock is changed to 5:05 p.m. of the same day, the
log entry reflects only a 55-minute average accumulation. When the next log record is written, the
period is also based on a 55-minute accumulation.
10.2.3
Backward clock change crossing an hour boundary
This forces a log period entry for the part of the hour that has accumulated since the previous log
entry. A new flow record is begun with the new clock time and the new record maintains the balance
of the hourly data.
Example: If the present time is 5:05 p.m. and the clock is changed to 4:55 p.m. of the same day, the
log period entry reflects only a five-minute average accumulation. When the next log record is written,
the period is based on a 60-minute accumulation.
!
CAUTION – Equipment/Property damage. Follow the procedures in section
Remove and restore power
this section.
Several options for restart are available for XSeries
those options and the corresponding procedures for manually-triggered restarts.
NOTICE – Data loss. Some of the restart procedures described in this section cause customer
data, device configuration, or calibration data loss. Backup data and configuration as described in
section
10.1 Preserve data and
10.4.1
Restart types overview
There are several ways to restart an XSeries
performed automatically after software updates, power removal, or other system events. Manually
triggered restarts are performed onboard or from the user interface (PCCU).
The table below provides a description of device restarts. Review carefully the implications of each
restart type to select the appropriate method. There may be several methods for the same type of
restart.
1 0 6 | XSE RIE S G5 | 2 10 60 2 6MNAA
when instructed to do so in any of the procedures included in
G5
devices. This section provides an overview of
configuration.
G5
device. Restarts can be manually triggered or
10.5
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