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36 Model 2700 Transmitter with PROFIBUS-PA
Calibration
To adjust meter factors:
• With the EDD, bus parameters, or ProLink II, refer to the menu flowcharts in Figure 3-8.
• With the display, refer to the menu flowchart in Figure B-12.
Figure 3-8 Adjusting meter factors
Example
The flowmeter is installed and proved for the first time. The flowmeter
mass measurement is 250.27 lb; the reference device measurement is
250 lb. A mass flow meter factor is determined as follows:
The first mass flow meter factor is 0.9989.
One year later, the flowmeter is proved again. The flowmeter mass
measurement is 250.07 lb; the reference device measurement is
250.25 lb. A new mass flow meter factor is determined as follows:
The new mass flow meter factor is 0.9996.
MeterFactor
MassFlow
1
250
250.27
------------------
× 0.9989==
MeterFactor
MassFlow
0.9989
250.25
250.07
------------------
× 0.9996==
EDD
Block: Transducer Block 1 (Slot 11)
Index 36 (Mass factor)
Index 37 (Density factor)
Index 38 (Volume factor)
Meter Factors
Bus parameters
ProLink II
MMI Coriolis Flow >
Transducer Block
Mass Factor
Measurement >
Process Variable
Mass Flow
Density Factor
Density
Volume Factor
Volume Flow