Endress+Hauser Cerabar M, Руководство по эксплуатации

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Commissioning Cerabar M, Deltapilot M
50 Hauser
8.3.2 Level measuring mode
The following functions are possible via 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 →  42
• The "Zero" and "Span" keys only have a function with the following setting:
"Level selection" = "In pressure", "Calibration mode" = "Wet"
In other settings, the keys do not have a function.
• The device is configured for the "Pressure" measuring mode as standard. You can
change the measuring mode via the "Measuring mode" parameter →  51.
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 →  41.
• The pressure applied must be within the nominal pressure limits of the sensor. See
information on the nameplate.
L
WARNING
Changing the measuring mode affects the span (URV)!
This can result in product overflow.
‣
If the measuring mode is changed, the span setting (URV) must be verified and, if nec-
essary, reconfigured!
Perform position adjustment (see the information at the start of the "Commissioning" section)
1 Pressure is present at the device.
2 Press the "Zero" and "Span" keys simultaneously for at least 3 s.
3 Does the LED on the electronic insert light up briefly?
4 Yes No
5 Applied pressure for position adjustment has been
accepted.
Applied pressure for position adjustment has not been
accepted. Observe the input limits.
Setting lower pressure value
1 Desired pressure for lower pressure value ("empty pressure") is present at device.
2 Press the "Zero" key for at least 3 s.
3 Does the LED on the electronic insert light up briefly?
4 Yes No
5 The pressure present was saved as the lower pressure
value ("empty pressure") and assigned to the lower level
value ("empty calibration").
Applied pressure was not saved as the lower
pressure value. Observe the input limits.
Setting upper pressure value
1 Desired pressure for upper pressure value ("full pressure") is present at device.
2 Press the "Span" key for at least 3 s.
3 Does the LED on the electronic insert light up briefly?