Emerson Daniel 3410 Series User Manual

3410 Series Gas Ultrasonic Meters Operations Manual Section 5: Calibrate and configure the meter
3-9000-777 Rev E January 2018
Third-order polynomial 47
5.1.4 Third-order polynomial
When the Polynomial wet calibration method is selected, the meter uses a third-order
polynomial on the dry-calibration velocity Equation 5-4.
Equation 5-4 Wet calibration - third-order polynomial
where
If selecting “Polynomial Coefficients”, the “C” calibration coefficients are applied.
Figure 5-4 Calibration - Meter Factor: Polynomial
=
wet-calibration gas flow velocity (m/s) (AvgFlow)
=
dry-calibration gas flow velocity (m/s) (DryCalVel)
=
wet-calibration 0
th
order coefficient (m/s) (FwdC0 or RevC0)
=
wet-calibration 1
st
order coefficient (dimensionless) (FwdC1
or
RevC1)
=
wet-calibration 2
nd
order coefficient (s/m) (FwdC2 or RevC2)
=
wet-calibration 3
rd
order coefficient (s
2
/m
2
) (FwdC3 or
RevC3)
V
WetCal
C
0
C
1
V+
DryCal
C
2
V
DryCal
2
C
3
V
DryCal
3
++=
V
WetCal
V
DryCal
C
0
C
1
C
2
C
3

Emerson Daniel 3410 Series Specifications

General

Brand	Emerson
Model	Daniel 3410 Series
Category	Measuring Instruments
Language	English