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a. Choose Viscosity at Specific Temp.
b. Choose Isotherm 1.
c. Set the temperature for Isotherm 1.
d. For each fluid, enter the viscosity value at the specified temperature.
Enter viscosity in either cP or cSt, depending on the setting of Matrix Data Unit.
e. Press Send to send this data to the transmitter.
f. Press the back arrow.
g. Choose Isotherm 2.
h. Set the temperature for Isotherm 2.
i. For each fluid, enter the viscosity value at the specified temperature.
j. Continue until you have entered data for all process fluids.
k. Press the back arrow twice to return to the Matrix Referral menu.
Important
• You must enter the temperature values in order, either low-to-high or high-to-low.
• You must enter the process fluids in order of viscosity, either low-to-high or high-to-low.
• The matrix must be 2×2 or larger.
7. Choose Results and check the values displayed for Fit Results and Fit Accuracy.
Fit Results can be Good, Poor, or Empty. Good means that the matrix is mathematically
capable of generating data. Poor means that the matrix cannot generate data. If Fit
Results = Poor, adjust the matrix and try again. If Fit Results = Empty, ensure that you
have entered data for all temperature–viscosity pairs and that the data meets the
requirements listed above.
Fit Accuracy is the maximum difference between the referred viscosity value
calculated by the meter and the referred viscosity value that is expected at each of
the temperature–viscosity pairs.
8. Choose Results and check the values displayed for Fit Results and Fit Accuracy.
9. Choose the method to be used to supply temperature data, and perform the
required setup.
Method Description Setup
Internal RTD tem-
perature data
Temperature data from the on-
board temperature sensor
(RTD) is used.
a. Choose Configure > Manual Setup > Measurements > Optional Setup
> External Inputs > Temperature.
b. Set External Temperature for Viscosity to Disable.
Configure process measurement
50 Micro Motion
®
Fork Viscosity Meters (FVM)