Emerson MICRO MOTION HFVM Series Configuration And Use Manual page 88

Integrate the meter with the control system
Prerequisites
If you plan to set any of the HART variables to CCAI (Calculated Carbon Aromaticity Index)
or CII (Calculated Ignition Index), the API referral application must be enabled and
configured to report referred density at 15 °C. These two process variables require a non-
zero value for referred density. If you do not set up API referral, these two process variables
will be reported as 0.
Options for HART variables
Table 6-4:
Process variable
Standard
Line Density
Line Temperature
Line Temperature (External)
Drive Gain
User-Defined Calculation Output
Board Temperature
Input Voltage
Viscosity measurement
Dynamic Viscosity
Kinematic Viscosity
Referred Viscosity
Secondary Referred Viscosity
Quality Factor (Q Factor)
API referral
Referred Density (API)
Ignition quality
Calculated Carbon Aromaticity Index
(CCAI)
Calculated Ignition Index (CII)
(1) Not supported on the HFVM-R.
(2) Quality Factor is the ratio of the energy stored in the vibrating tines to the energy lost during each vibration
cycle. In other words, it is a measure of the amount of energy required to vibrate the tines. Quality Factor is
inversely proportional to viscosity.
(3) The API referral application must be enabled and configured to report referred density at 15 °C.
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Options for HART variables
(1)
(1)
(2)
(1)
(1)(3)
(1)
(1)
Micro Motion
Primary Secondary
Variable Variable
(PV) (SV)
✓ ✓ (1)
✓ ✓
✓ (1) ✓ (1)
✓ (1) ✓ (1)
✓ (1) ✓ (1)
✓ ✓ (1)
✓ ✓ (1)
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
® Heavy Fuel Viscosity Meters (HFVM) Viscomaster
Third Varia- Fourth Var-
ble (TV) iable (QV )
✓ ✓
✓ ✓
✓ (1) ✓ (1)
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
✓ ✓
™