Software Version C
- 89 -
optek-converter C4101 Version 07.2009_1.2US, 23.07.2009
www.optek.com
9.8 Data logger display
9.8.1 Operating principle of the data logger
The data logger records the four measuring results in a selectable time period
and displays them graphically on the display. This way, you can monitor the
process and compare changes to the measuring results. This provides the
opportunity to detect existing correlations and thus to define new parameters for
process control and monitoring.
When one of the three display modes is enabled, the system operates in the
measuring mode. The converter updates the four measuring results for the
selected product every 0.1 seconds. The system interrupts the measuring mode
as soon as the PRODUCT CONFIGURATION, SYSTEM SETTINGS and
MAINTENANCE menus are enabled.
During the interruption of the measuring mode, the data logger records "Hold".
The mA-outputs continue displaying the last valid results. This way, the data
from the measurement display and from the data logger is consistent with the
mA-output and external data recording.
When a "Hold" function is enabled, the data logger displays "Hold" instead of the
measuring results. When the "Failsafe" function is enabled, the data logger
records "Failsafe".
At each point the data logger records all four measuring results of the selected
product. The system derives the information for the measuring results from the
PRODUCT CONFIGURATION function and records it in the header of the
storage sector. With each product change and each change in product
configuration for the currently measured product, the system automatically
creates a new storage sector with an updated header. New headers can also be
automatically created by the system without external interference when a new
data sector begins.
With each header change in the data logger, the system starts displaying trends
on the MEASURING RESULTS.
The trends in the MEASUREMENT DISPLAY are of the same time resolution as
the data recording in the data logger.
Note!
Due to the storage requirement in the data logger, the resolution of the stored
values is limited to 10 e
-4
* the difference of measuring range beginning and
measuring range end.
Changing the product name affects all data points already available in the data
logger.
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