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LCI40
Series IOM
6 oPeration
on-site density Calibration:
•
Ensure that the device has been properly installed
and functions smoothly.
•
If air (empty) is used as the medium, the measuring
tube must be completely dry and free of liquids and
solids. If possible, blow dry air into the measuring
tube to empty it.
•
If liquids are used, flush for a few minutes at a high
flow rate to remove gas bubbles.
•
Set the flow rate to a typical value (50% of the
nominal flow is ideal).
•
If the process temperature is higher than the ambient
temperature, wait until the system has stabilised.
•
When it comes to 1 point and 2 point calibration, you
can choose from the options “empty”, “pure water”,
“town water” and “other”. The reference values for
the specified products are stored in the converter.
Density calibration has failed if “Density Calib. Error”
is displayed. The reason for the error may be indicated
on the display. Possible reasons for failed density
calibration:
•
The device is not in “Measuring” mode.
•
The calibration points are too close together.
•
One or more calibration points did not pass the
plausibility test.
•
Flow, pressure, temperature or system are not
stable?
•
Please check your system and try again.
•
If this results in another failed calibration, please
contact the manufacturer.
6.5.4 density Calibration (Menu C1.2.1)
6.5 description of Functions
1 Point Calibration
•
See examples for “Calibration with town water and
other.”.
•
Select the function using
↓
and
↑
and then confirm
with
↵
•
If “Other” is selected, the product density must be
entered.
•
1 point calibration is generally sufficient for
most applications, such as adapting the density
measurement to a new installation.
•
Make sure that prior to calibrating the 2nd point that
1 point calibration was carried out and that the result
was saved with the dialog “Save Configuration?”.
2 Point Calibration
•
In this case, both reference points are recalibrated
(with the products of the system).
•
With 2 point calibration, ensure that both calibration
points entered by the user are accepted.
If the 2nd point cannot be calibrated immediately
after the first one, because the 2nd product is not yet
available, the device continues to function normally as
after the 1 point calibration. In other words, there can
be weeks or even months between the calibration of
the two measuring points.
