Endress+Hauser Deltabar S PMD75 - Differential Pressure Measurement

Commissioning Deltabar S FOUNDATION Fieldbus
48 Endress+Hauser
For onsite operation, see also  ä 29, Section 6.2.3 "Function of the operating elements –
onsite display connected" and  ä 31, Section 6.4 "Local operation – onsite display connected".
7.8 Differential pressure measurement
7.8.1 Preparatory steps
• The Deltabar S PMD75 and FMD78 are usually used for differential pressure measurement.
• FMD78: the device is ready for calibration immediately.
Local operation FieldCare
Measured value display
Onsite display: Switch from the measured value display
to GROUP SELECTION with F .
Measured value display
Select QUICK SETUP menu.
GROUP SELECTION
Select MEASURING MODE.
Measuring Mode
Select the Primary Value Type parameter.
MEASURING MODE
Select "Level" option.
Primary Value Type
Select "Level" option.
LEVEL SELECTION
Select level mode. For an overview see  ä 46.
Level Selection
Select level mode. For an overview see  ä 46.
GROUP SELECTION
Select QUICK SETUP menu.
POS. ZERO ADJUST
Due to orientation of the device, there may be a shift in
the measured value. You correct the MEASURED VALUE
via the POS. ZERO ADJUST parameter with the "Confirm"
option, i.e. you assign the value 0.0 to the pressure
present.
POS. ZERO ADJUST
Due to orientation of the device, there may be a shift in
the measured value. You correct the MEASURED
VALUE via the POS. ZERO ADJUST parameter with the
"Confirm" option, i.e. you assign the value 0.0 to the
pressure present.
EMPTY CALIB.
1)
Enter level for the lower calibration point.
For this parameter, enter a level value which is assigned
to the pressure present at the device.
1) – LEVEL SELECTION "Level Easy Pressure" and CALIBRATION MODE "Wet"
– LEVEL SELECTION "Level Standard", LEVEL MODE "Linear" and CALIBRATION MODE "Wet"
EMPTY CALIB.
1
Enter level for the lower calibration point.
For this parameter, enter a level value which is
assigned to the pressure present at the device.
FULL CALIB.
1
Enter level for the upper calibration point.
For this parameter, enter a level value which is assigned
to the pressure present at the device.
FULL CALIB.
1
Enter level for the upper calibration point.
For this parameter, enter a level value which is
assigned to the pressure present at the device.
DAMPING VALUE
Enter damping time (time constant ). The damping
affects the speed at which all subsequent elements, such
as the onsite display, measured value and the OUT Value
of the Analog Input Block react to a change in the
pressure.
DAMPING VALUE
Enter damping time (time constant ). The damping
affects the speed at which all subsequent elements,
such as the onsite display, measured value and the OUT
Value of the Analog Input Block react to a change in the
pressure.