Endress+Hauser Cerabar M - 9.10 Electrical Differential Pressure Measurement With Gauge Pressure Sensors (Cerabar M or Deltapilot M)

Cerabar M, Deltabar M, Deltapilot M Commissioning with the FF configuration program
Endress+Hauser 161
9.10 Electrical differential pressure measurement with
gauge pressure sensors (Cerabar M or Deltapilot M)
Example:
In the example given, two Cerabar M or Deltapilot M devices (each with a gauge pressure
sensor) are interconnected. The pressure difference can thus be measured using two
independent Cerabar M or Deltapilot M devices.
For a description of the parameters mentioned  Chap. 8.11 "Description of parameters".
A0030415
Fig. 49:
1 Shut-off valves
2 e.g. filter
3 FF HOST System
1.)
2.)
The Analog Input Block output of the high-pressure side of the device has to be connected
to one of the 4 inputs of the Input Selector Block on the low-pressure side of the device (here
Input1 for example).
This configuration has to be written to the devices.
Both blocks must be set to the Auto mode.
Cerabar M
Á
11
2
3
Description
Adjustment of the Cerabar M/Deltapilot M on the high-pressure side in the Pressure Transducer
Block
1 Open the Pressure Transducer Block and set the block mode to OOS.
2 Select the "Pressure" measuring mode via the Measuring mode/OPERATING_MODE or Primary Value Type/
PRIMARY_VALUE_TYPE parameter.
3 Select a pressure unit via the Calibration Units/CAL_UNIT parameter, here "mbar" for example.
4 The Cerabar M/Deltapilot M is unpressurized, perform position adjustment, see  ä 73.
5 Set the Pressure Transducer Block to the "Auto" block mode. If necessary, configure the
Channel/CHANNEL ( ä 211),
Linearization Type/L_TYPE ( ä 212),
Transducer Scale/XD_SCALE ( ä 210) and
Output Scale/OUT_SCALE ( ä 211) parameters by means of the Analog Input Block.