Checking for backflow
You suspect that there is a significant amount of backflow through the sensor. To collect data, configure two
totalizers as follows:
• Source=Mass Flow, Direction=Forward Only
• Source=Mass Flow, Direction=Reverse Only
Reset both totalizers, allow them to run for an appropriate period, then look at the amount of reverse flow as
a percentage of forward flow.
Tracking three different process fluids
Three tanks are connected to a loading dock through a single meter. Each tank contains a different process
fluid. You want to track each process fluid separately.
1. Set up three totalizers, one for each tank.
2. Name the totalizers Tank 1, Tank 2, and Tank 3.
3. Configure each totalizer as required for the corresponding process fluid.
4. Stop and reset all three totalizers to ensure that the beginning values are 0.
5. When loading from a tank, start the corresponding totalizer, and stop it when the load is finished.
6.5.1 Default settings for totalizers and inventories
Totalizer or
inventory
Source (process variable
assignment)
Direction Name of totalizer
Name of inventory
1 Mass flow Forward Only Mass Fwd Total
Mass Fwd Inv
2 Volume flow Forward Only Volume Fwd Total
Volume Fwd Inv
3 Temperature-corrected volume
flow
Forward Only API Volume Fwd Total
API Volume Fwd Inv
4 Gas standard volume flow Forward Only GSV Fwd Total
GSV Fwd Inv
5 Standard volume flow Forward Only Standard Vol Fwd Total
Standard Vol Fwd Inv
6 Net mass flow Forward Only Net Mass Fwd Total
Net Mass Fwd Inv
7 Net volume flow Forward Only Net Vol Fwd Total
Net Vol Fwd Inv
6.6 Configure logging for totalizers and inventories
Display
Menu > Configuration > Totalizer Log
ProLink III Device Tools > Configuration > Totalizer Log
Configuration and Use Manual Configure advanced options for process measurement
MMI-20025166 March 2019
Configuration and Use Manual 113
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