Flow measurement (FF configuration program) Cerabar S/Deltabar S/Deltapilot S FOUNDATION Fieldbus
34 Endress+Hauser
6 Flow measurement
(FF configuration program)
In this chapter the parameter text as well as the parameter name are indicated. In FF configuration
programs only the parameter text is displayed (exeption: in the NI-FBUS configurator you can select
if the parameter text or the parameter name is displayed).
P01-xxxxxxxx-07-xx-xx-en-001
6.1 Calibration
Example:
In this example, a volume flow should be measured in m
3
/h.
!
Note!
• The "Flow measurement" measuring mode is only available for the Deltabar S differential pressure
transmitter.
• See also Operating Instructions BA00301P for Deltabar S, Section 6.5 "Flow measurement".
• For a description of the parameters mentioned, see
– → ä 53, Pressure Transducer Block.
– → ä 93, Analog Input Block.
Parametertext Parametername
Linearization/LINEARIZATION
Description
1 Before configuring the device for your application, the
pressure piping must be cleaned and the device filled with
fluid. See Operating Instructions BA00301P.
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Fig. 15: Flow measurement calibration
1 See Table, Step 8.
2 See Table, Step 9.
2 Open the Pressure Transducer Block and set the block
mode to OOS.
3 Carry out position adjustment if necessary.
The following options are available for performing position
adjustment:
• By means of the parameters
– Pos.Zero Adjust/ ZERO_POSITION_ADJUST
(→ ä 59) or
– Pos. Input Value/POSITION_INPUT_VALUE
(→ ä 59) or
– Calib. Offset/CALIBRATION_OFFSET (→ ä 59).
4 Select the measuring mode if necessary:
• Select the "Flow square root" option by means of the
Linearization/LINEARIZATION parameter.
• By means of the Primary Value Type/
PRIMARY_VALUE_TYPE parameter, select the "Flow"
option.
5 Select a pressure unit via the parameter, here mbar for
example.
6 By means of the Flow-Meas. Type/FLOW_TYPE
parameter, select the "Volume operat. cond." option.
7 Select a flow unit via the Unit Flow/FLOW_UNIT
parameter, here m
3
/h for example.
8 Select the Scale Out/SCALE_OUT parameter, EU_100
element.
Enter the maximum flow value of the primary device,
here 6000 m
3
/h for example. See also the layout sheet of
the primary device.
➀
p
[mbar]
➁
6000
0
0 400
[m /h]
3
V
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