Yokogawa DR240 - Manual (Page 194)

10-33 IM DR232-01E
10
Basic Settings (SET UP)
If Power Failure Occurs While Report Function Is Active
The DR recorder takes different actions depending on the length of a power failure.
If the power failure time is longer than 12 hours:
The DR recorder makes a report immediately after it recovers from the power failure and then
stops making reports. It does not execute printing based on the settings for automatic printing.
Print out reports either using the communication function or from the FUNC menu.
Results of computing: The DR recorder computes data measured up to the point immediately
before the power failure.
Time of report making:The time when the power failure occurred.
If the power failure is less than 12 hours:
The DR recorder takes different actions depending on the time it recovers from the power
failure.
Time of Recovery from After the Time of Before the Time of
Power Failure Report Making Report Making
Condition after recovery from Valid report function Valid report function
power failure (start of report making enabled) (start of report making enabled)
Report making Immediately after recovery from Time for report making
power failure
Report printing Immediately after recovery from Time for report making
power failure
Data included in report making Data measured up to the point of Data measured over the given
power failure period except the power failure time
If automatic report printing is turned on:
If the power failure time covers the given period of report making, no report for that period is made.
Handling of Faulty Data
If data being computed contain any faulty data, the DR recorder treats the data as summarized in
the following table, depending on the type of computing and faulty data.
Type of Faulty Data Average Minimum/Maximum Instantaneous Value Sum
Positive overflow Excluded from Included in computing Takes faulty data as Excluded from
computing the result of computing computing
Negative overflow Excluded from Included in computing Takes faulty data as Excluded from
computing the result of computing computing
Channels included in Excluded from Excluded from computing Takes faulty data as Excluded from
measurement set to SKIP computing the result of computing computing
No channel included Excluded from Excluded from computing Takes faulty data as Excluded from
in measurement computing the result of computing computing
Error Excluded from Excluded from computing Takes faulty data as Excluded from
computing the result of computing computing
Output of data disabled Excluded from Excluded from computing Takes faulty data as Excluded from
computing the result of computing computing
The DR recorder prints the results of computing as shown in the following table if they are special
data.
Type of Data Printout Format
Positive overflow +******
Negative overflow –******
Channels included in measurement set to SKIP Space
No channel included in measurement Space
Error ЧЧЧЧЧЧ
Output of data disabled
If data being computed contain faulty data, the DR recorder prints each digital data item,
beginning with an * or × as the status indication.
1. Power failure:
×
In the case of a power failure, the DR recorder prints the time for report making, also beginning
with an
×.
2. Channels included in measurement set to SKIP/no channel included in measurement/error/
output of disabled data:
×
10.12 Working with the Report Function