KROHNE MFC 300 EN - Manual (Page 100)

6
OPERATION
100
MFC 300
www.krohne.com 02/2012 - 4000498602 - MA MFC 300 R03 en
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 "calib. error." is displayed. There are several possible reasons
for this:
• 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.
.book Page 100 Monday, February 6, 2012 11:01 AM