7.8 Level and distance calibration
Level and distance calibration may be necessary when using a nozzle or pipe or if there are
disturbances in the near zone caused by a physical object.
Non-metallic (e.g. plastic) vessels and installation geometry may introduce an offset for
the zero reference point. This offset may be up to ± 25 mm. The offset can be
compensated for using Distance Calibration.
When calibrating the transmitter, it is important that the product surface is calm and that
the tank is not being filled or emptied.
A complete calibration is performed in two steps:
Procedure
1. Calibrate the Distance measurement by adjusting the Calibration Distance
parameter.
2. Calibrate the Level measurement by adjusting the Tank Height.
7.8.1
Calibrate distance using Rosemount Radar Master
Procedure
1. Measure the actual distance between the Upper Reference Point and the product
surface.
2. Adjust the Calibration Distance so that the Distance measured by the transmitter
corresponds to the actual distance.
a) In Rosemount Radar Master, select Setup Tank.
b) Select the Geometry tab.
c) Select the Advanced button.
d) In the Calibration Distance box, enter the desired value.
e) Select Store.
Service and troubleshooting Reference Manual
April 2019 00809-0100-4530
192 Rosemount 5300 Level Transmitter
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