Mean Axial Velocity Method - ABB AquaProbe 2 Installation Manual

Insertion-Type Electromagnetic Probe Flowmeter
AquaProbe 2

2.6.3 Mean Axial Velocity Method

Warning. When inserting or removing the AquaProbe suitable restraining equipment must be used to
prevent the probe being forced out under pressure. Ensure that the valve is fully open.
Note. Safety restraint omitted for clarity.
Fig. 2.14 Setting the Insertion Depth – Mean Axial Velocity Method
IM/AP Issue 9
7
Unlock, slide positioning collar up and lock at distance:
D
+ VP + 30mm (1.181in) + pipe thickness
8
7
See Note
3
Slacken
Tighten
10
to 40Nm
(30ft lbf)
Open Fully
8
Insert probe to
position collar depth
9
Retract probe fully
6
Slide positioning collar
down to nut and lock
5
Lower probe to
touch valve plate
4
2
Measure to top
of valve plate (VP)
Determine
1
internal
diameter (D)
2 Mechanical Installation
15