ABB 10DX3111G Instruction Manual page 34

(Equation #3)
where:
Q = volumetric flow rate
A = cross-sectional area
D = pipe section diameter
E = induced signal voltage
s
E = reference voltage
r
B = magnetic flux density
∝ = dimensionless constant
β & γ = dimensional constant
V = fluid velocity
Therefore, volumetric flow rate is directly proportional to the induced signal voltage as measured
by the ABB Instrumentation Magnetic Flowmeter.
10DX3111 INSTRUCTION MANUAL
Q = γ E
s
E
r
3-3