Level And Distance Calibration - Emerson 5301HxxxxxxxxxxxxxxZZ Series Reference Manual

Service and troubleshooting
April 2019
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
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
2. Adjust the Calibration Distance so that the Distance measured by the transmitter
192
parameter.
surface.
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.
Reference Manual
00809-0100-4530
Rosemount 5300 Level Transmitter