Deltapilot M 4...20 mA HART Commissioning
Endress+Hauser 35
8.2.2 Level measuring mode
The following functions are possible by means of the keys on the electronic insert:
• Position adjustment (zero point correction)
• Setting the lower and upper pressure value and assigning to the lower and upper level value
• Device reset ä 25
• The "Zero" and "Span" keys only have a function with the following setting:
– "Level selection" = "In pressure", "Calibration mode" = "Wet"
The keys have no function in other settings.
• The device is configured for the "Pressure" measuring mode as standard. You can switch
measuring modes by means of the "Measuring mode" parameter. ä 37, "Measuring mode
selection"
The following parameters are set to the following values at the factory:
– "Level selection" = "In pressure"
– "Calibration mode": wet
– "Unit before lin": %
–"Empty calib.": 0.0
– "Full calib.": 100.0
– "Set LRV": 0.0 (corresponds to 4 mA value)
– "Set URV": 100.0 (corresponds to 20 mA value)
• Operation must be unlocked. ä 32, "Locking/unlocking operation".
• The pressure applied must be within the nominal pressure limits of the sensor. See
information on the nameplate.
Changing the measuring mode affects the span (URV)!
This situation can result in product overflow.
‣ If the measuring mode is changed, the span setting (URV) must be verified and, if necessary,
reconfigured!
Carrying out position
adjustment.
1)
Setting lower pressure value. Setting upper pressure value.
Pressure is present at device. Desired pressure for lower pressure
value ("empty pressure") is present
at device.
Desired pressure for upper pressure
value ("full pressure") is present at
device.
Press the "Zero" and "Span" keys
simultaneously for at least 3 s.
Press the "Zero" key for at least 3 s. Press the "Span" key for at least 3 s.
Does the LED on the electronic
insert light up briefly?
Does the LED on the electronic
insert light up briefly?
Does the LED on the electronic
insert light up briefly?
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