Linearization - Honeywell SLG 700 User Manual

7.8.4

Linearization

This option allows users to adjust the level measurement to agree with a customer measurement.
It is available only through the use of a PC-based DTM / DD.
Configure the linearization table to make the transmitter output agree with an independent level
measurement.
Linearization Disabled
Note: The Level Linearization feature does not affect the values reported for the Distance to
Product and Distance to Interface device variables. If Level Linearization checkbox is enabled,
associated level are no longer described solely by the basic geometry and it is possible that the
Product Level will not be equal to (Sensor Height – Level Offset – Distance to Product). Likewise
for the Interface if is being calculated.
Enable Linearization:
If enabled, linearization will convert the level as measured by the sensor to a corrected level value
as defined by the user in the linearization table on this page (max 32 points). This may be used to
correct for any non-linearity's that may occur. For example, a tank for which the roof height
changes during filling.
Wet Linearization:
When the measured level for the tank reaches a level where the corresponding corrected level is
known, select a row in the linearization table, enter the corrected level in the textbox below, and
press the arrow button. This will immediately set the current measured level and the corrected
level into the selected row in the table (i.e. immediately set in the transmitter).
Note:
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Figure 18: Advanced Configuration – Linearization
This feature is disabled when a user makes other changes
on this screen. Apply or discard any other changes before
configuring Wet Linearization.
SLG 700 Series HART Option User's Manual
Linearization Enabled
Revision 5