Levelflex M FMP40
Endress+Hauser 5
Interface measurement
When the high-frequency pulses hit the surface of the medium, only a percentage of the transmission pulse is
reflected. In the case of media with a low DC
1
, in particular, the other part penetrates the medium. The pulse
is reflected once more at the interface point to a second medium with a higher DC
2
. The distance to the
interface layer now can also be determined taking into account the delayed time-of-flight of the pulse through
the upper medium.
L00-FMP4xxxx-15-00-00-en-007
Output
The Levelflex is preset at the factory to the probe length ordered so that in most cases only the application
parameters that automatically adapt the device to the measuring conditions need to be entered. For models
with a current output, the factory adjustment for zero point "E" and span "F" is 4 mA and 20 mA. For digital
outputs and the display module, the factory adjustment for zero point "E" and span "F" is 0 % and 100 %.
A linearization function with max. 32 points, which is based on a table entered manually or semi-automatically,
can be activated on site or via remote operation. This function allows the level to be converted into units of
volume or mass, for example.
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