
ZENO
®
-3200 USER MANUAL
Coastal Environmental Systems (206) 682-6048
Page 51
4. RETRIEVING LOGGED
DATA
Coastal Environmental Systems
ZENO
®
-3200 User Manual
When you use your ZENO
®
-3200 for retrieving logged Data Records, ZENOSOFT
®
stores the Data
Records in sequential order. Each Data Record consists of a timestamp (the date and time) as well as the
data values to be logged. The data values being logged are defined in the Data Output Menu.
The time interval between successive, regularly logged Data Records is
always the same as long as:
1. There is no power loss to the ZENO
®
-3200.
2. There are no changes in the Sample Interval, Sample Duration, Sample
Time Offset, internal ZENO
®
-3200 clock or other time related information
in the configuration.
3. There are no Alarm Messages being logged.
4. A user does not enter the Zeno Program Menu in the User Interface.
If the ZENO
®
-3200 suffers a loss of power, there will be a gap in your logged Data Records. The size of
the gap will depend upon the duration of the power loss.
A "gap" in logged Data Records is not a physical gap in memory, but a
longer difference in timestamps between successive Data Records than your
configuration specifies.
If you make any changes to the Sample Interval, Sample Duration Time, Sample Time Offset, internal
ZENO
®
-3200 clock or any other time-related information in your configuration, there will probably be a
gap in your logged Data Records.
If you change the internal ZENO
®
-3200 clock to a time prior to its most
recent logged data record, there will be data records whose timestamps are
overlapping.
Kommentare zu diesen Handbüchern