Endress+Hauser Waterpilot FMX21 - Page 53

Waterpilot FMX21 Commissioning
Endress+Hauser 53
The measured variables %, level, volume and mass are available for this level mode,
see "Output unit".
9.10.7 Calibration with partially filled vessel (wet calibration)
Example:
This example explains a wet calibration for cases in which it is not possible to empty the
vessel and then fill it to 100%.
During this wet calibration, a level of 20% is used as the calibration point for "Empty" and a
level of "25%" is used as the calibration point for "Full".
The calibration is then extended to 0% to 100% and lower range-value (LRV)/upper
range-value (URV) are adapted accordingly.
Prerequisite:
• The default value in level mode for the calibration mode is "Wet".
• This value can be adjusted: Menu path: Setup → Extended setup → Level → Calibration
mode
Description
1 Select the "Level" measuring mode via the
"Measuring mode" parameter.
Menu path: Setup → Measuring mode
L
WARNING
Changing the measuring mode affects the
span (URV)
This situation can result in product overflow.
‣
If the measuring mode is changed, the
setting for the span (URV) must be
checked in the "Setup" operating menu and
readjusted if necessary.
20%
20%
25%
A0018841
1 See table, step 2
2 See table, step 3
2 Set the value for "Empty calib." with the acting
pressure for the level, e.g. 20 %
Menu path: Setup → Extended setup → Level →
Empty calib.