Mounting; Orientation - ABB COPA-XM 3000 Series Instruction Manual

Series 10DX3000 Magnetic Flowmeter Instruction Manual

2.4 MOUNTING

2.4.1 Orientation

The Series 3000 Magnetic Flowmeter may be installed in horizontal, vertical or sloping pipe runs.
However, precautions must be taken to assure that the metering tube is filled at all times during
measurement. A vertical installation, with the pipe line carrying liquid upwards assures a filled
hydraulic line under low flow rate conditions and also minimizes wear on the meter lining by abrasive
grit. Horizontal installations should be made with the meter in the lower section of a pipeline to assure
a filled meter condition.
For horizontal or sloping installations the meter should be placed so that the electronic housing of the
meter is on top. This will align the meter electrodes in a lateral plane. Positioning the meter in this
way eliminates the possibility of entrained air acting as an electrode insulator.
The Magnetic Flowmeter must be oriented in accordance with the direction of process flow, as
indicated by the FLOW arrow on the meter body. For accurate metering, a straight pipe run
equivalent to a minimum of three straight pipe diameters are required upstream of the magmeter for
elbows and tees, measured from the center of the meter (refer to Figure 2-17).
If a control valve is required, it is recommended that it be placed downstream of the meter. Upstream
valves can create turbulence that result in air pockets and may affect the meter's accuracy or cause
its output to be noisy. A minimum of ten pipe diameters of straight pipe are required upstream
between the magmeter and a control valve or pump (refer to Figure 2-17).
2.4.2 Meter Handling
The liner of the Flowmeter must be protected at all times. The liner can be damaged by sharp objects
or cut by undue pressure. The protective covers provide protection for the liner. Keep the covers in
place until the Primary is actually ready for installation. Once the protective covers are removed
during installation, be careful not to damage the liner with the mating flanges in order to avoid
potential process leaks. Do not pass any rope or wire sling through the meter liner (Refer to Figure
2-2 for proper hoisting method).
NOTE
Leave metal protector plates or plywood lining protectors in place on
the meter until the meter is ready to be installed, otherwise the Teflon
meter liner will have a tendency to "flare" away from the meter face and
may make meter installation difficult.
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