KROHNE OPTIFLEX 1300C EN - Manual (Page 95)

OPERATION
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OPTIFLEX 1300 C
www.krohne.com 03/2014 - 4000172306 - HB OPTIFLEX 1300 R07 en
Interface threshold
When the device is set to measure interface, the device uses a second threshold to
identify and measure the interface between 2 liquids. The interface threshold
identifies:
• The level signal (the first signal that goes across the level threshold).
• If there are 2 liquids in the tank, the interface signal (the next largest signal). If there are
more than 2 liquids in the tank, the next signal after the level signal.
This device uses this data to monitor the interface signal. When you change the interface
threshold, refer to How to use thresholds
How to use thresholds How to use thresholds How to use thresholds in this section. For more data about the interface
threshold, refer to Function description on page 73 (table C. Advanced setup, menu item C.1.17).
Probe end threshold
Use this threshold when the device operates in TBF mode. The device uses TBF mode to
measure the level of products with low dielectric constants. It uses the probe end as a reference.
If the reflection is very weak, change the probe end threshold to ignore parasitic signals. Refer to
the procedure in How to use thresholds
How to use thresholds How to use thresholds How to use thresholds to change the probe end threshold.
For more data about the probe end threshold, refer to Function description on page 73 (table C.
Advanced setup, menu item C.1.18).
INFORMATION!
If the device is set at the factory to measure interface, you can change the interface threshold.
INFORMATION!
If the device is set at the factory to measure in Tank Bottom Following (TBF) mode or Automatic
mode, you can change the probe end threshold.