Commissioning Cerabar M, Deltabar M, Deltapilot M / 4...20 mA HART
54 Endress+Hauser
6.2.3 Flow measuring mode (Deltabar M only)
The following functions are possible by means of the keys on the electronic insert:
• Position adjustment (zero point correction)
• Set the maximum pressure value and assign it to the maximum flow value
• Device reset
!
Note!
• The operation must be unlocked. ä 40, "Locking/unlocking operation".
• The device is configured for the "Pressure" measuring mode as standard. You can switch
measuring modes by means of the "Measuring mode" parameter. ä 55, "Selecting the
language, measuring mode and pressure unit".
•DIP switch 4 (SW/) on the electronics insert can be used to switch to the "Flow" measuring
mode. In this case, the "Measuring mode" parameter is adjusted automatically.
• The "Zero"- key does not have any function in the "Flow" measuring mode.
• The pressure applied must be within the nominal pressure limits of the sensor. See information
on the nameplate.
Carry out position adjustment.
1
1) Observe warning concerning the commissioning (page ä 51).
Setting maximum pressure value.
Pressure is present at device. Desired pressure for the maximum
pressure value ("Max. Press. Flow") is
present at device.
Press the "Zero" and "Span" keys
simultaneously 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?
Yes No Yes No
Applied pressure
for
position
adjustment has
been accepted.
Applied pressure
for position
adjustment has
not been
accepted.
Observe the input
limits.
The pressure
present was saved
as the maximum
pressure value
("Max. Press.
Flow") and
assigned to the
maximum flow
value ("Max.
Flow").
The pressure
present was not
saved as the
maximum
pressure value.
Observe the input
limits.
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