Omega FC-21 User Manual page 43

7.3 Flow Equations: (Continued)
Flow Equations
Input Viscosity Computation:
Uncompensated Flow Computation:
Corrected Volume Flow Computation:
Mass Flow Computation:
† These special flow equations are not available in the standard unit. They are to be
(
A exp
† centistokes =
Where: centistokes = cP/(kg/l)
Pulse Input; Average K-Factor
Volume Flow =
Pulse Input; Linear Table
Volume Flow =
Pulse Input; UVC
† Volume Flow =
Analog Input; Linear
Volume Flow = input flow
Analog Input; Linear Table
Volume Flow = input flow * correction factor (input flow)
Analog Input; Orifice or External SQRT
Volume Flow = input flow *
Analog Input; Orifice Linear Table or External SQRT Linear Table
† Volume Flow = CF(rn) * input flow *
Temperature Transmitter
Standard Volume Flow = volume flow * (1 - Therm.Exp.Coef. *(Tf-Tref))
Density Transmitter
Standard Volume Flow = volume flow *
Mass Flow = volume flow * density
offered to OEMs or as special order items.
)
B
(Deg F + 459.67)
Absolute Density
input frequency * time scale factor
K-Factor
input frequency * time scale factor
K-Factor (Hz)
input frequency * time scale factor
K-Factor (Hz/cstk)
√(calibrated density)
√(density)
√(calibrated density)
39
FC-21 Flow Computer
√(density)
density
reference density
2