Figure 5-3 Calibration - Meter Factor: Piecewise Linearization - Emerson Daniel 3410 Series Operation Manual

3410 Series Gas Ultrasonic Meters Operations Manual
3-9000-777 Rev E
Equation 5-3 Wet Calibration - 12-Point Piece-wise linearization
where
LinearMeterFctr
The linear meter factor is determined by the PWL inputs, the flow direction, and the dry-
calibration gas flow velocity. If set to Piece-wise Linear" then the piece-wise linearization flow
rate and meter factor parameters are used to calculate the meter factor to be applied.

Figure 5-3 Calibration - Meter Factor: Piecewise linearization

Wet calibration piece-wise linearization
V =
V DryCal
WetCal
=
wet-calibration gas flow velocity (m/s) (
V
WetCal
=
dry-calibration gas flow velocity (m/s) (
V
DryCal
=
linear meter factor (dimensionless) (
Section 5: Calibrate and configure the meter
¥ LinearMeterFctr
AvgFlow
DryCalVel
LinearMeterFctr
January 2018
)
)
)
45