Parameter Adjustment - Extended Adjustment - Siemens SITRANS LG270 Operating Instructions Manual

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Linearization

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PBD-51041066

Linearization

A linearization is necessary for all vessels in which the vessel volume

does not increase linearly with the level - e.g. a horizontal cylindri-

cal or spherical tank, when the indication or output of the volume is

required. Corresponding linearization curves are preprogrammed

for these vessels. They represent the correlation between the level

percentage and vessel volume.

The linearization applies for the measured value indication and the

current output. By activating the suitable curve, the percentage vessel

volume is displayed correctly.

False signal suppression

High sockets and internal vessel installations cause interfering reflec-

tions and can influence the measurement.

A false signal suppression detects, marks and saves these false

signals so that they are no longer taken into account for the level and

interface measurement. We generally recommend carrying out a false

signal suppression to achieve the best possible accuracy. This should

be done with the lowest possible level so that all potential interfering

reflections can be detected.

Enter the actual distance from the sensor to the product surface.

All interfering signals in this section are detected by the sensor and

stored.

The instrument carries out an automatic false signal suppression

as soon as the probe is uncovered. The false signal suppression is

always updated.

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