ABB FXE4000 Inbetriebnahmeanleitung Seite 43

3 Installation
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3.1 Installation Requirements
The device measures the flowrate in both directions. The factory
default is forward flow, as shown in Fig. 3.
Fig. 3
The following items must be observed:
3.1.1 Electrode axis
Electrode axis (1) should be horizontal if at all possible or no more
that 45° from horizontal.
Fig. 4
3.1.2 In- and outlet pipe sections
Straight inlet section
≥ 3 x DN
DN = Flowmeter primary size
• Do not install fittings, manifolds, valves etc. directly in front of the
meter tube (1).
• Butterfly valves must be installed so that the valve plate does not
extend into the flowmeter primary.
• Valves or other turn-off components should be installed in the
outlet pipe section (2).
• For compliance with the measuring accuracy, observe the inlet
and outlet pipe sections.
1
Fig. 5
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D184B133U02
G00156
max. 45°
1
G00041
Straight outlet section
≥ 2 x DN
2
2xDN
3xDN
G00037
FXE4000 (COPA-XE/MAG-XE)
3.1.3 Vertical connections
• Vertical installation for measurement of abrasive fluids, flow
preferably from below to above.
Fig. 6
3.1.4 Horizontal connections
• Meter tube must always be completely full.
• Provide for a slight incline of the connection for degassing.
Fig. 7
3.1.5 Free inlet or outlet
• Do not install the flowmeter at the highest point or in the draining-
off side of the pipeline, flowmeter runs empty, air bubbles can
form (1).
• Provide for a siphon fluid intake for free inlets or outlets so that
the pipeline is always full (2).
1
Fig. 8
3.1.6 Installation in the vicinity of pumps
• For flowmeter primaries which are to be installed in the vicinity of
pumps or other vibration generating equip-ment, the utilization of
mechanical snubbers is advantageous.
Fig. 9
Installation
G00039
3°
G00038
2
G00040
G00043
EN - 9