Installation Requirements; Electrode Axis; In- And Outlet Pipe Sections; Vertical Connections - ABB FSM4000 Operating Instruction

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Wechsel ein-auf zweispaltig
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4.6

Installation Requirements

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The device measures the flowrate in both directions. The factory
default is forward flow, as shown in Fig. 15.
Fig. 15
The following items must be observed:
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4.6.1

Electrode axis

Electrode axis (1) should be horizontal if at all possible or no more
that 45° from horizontal.
Fig. 16
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4.6.2

In- and outlet pipe sections

Straight inlet section
≥ 3 x DN
DN = Flowmeter sensor 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 sensor.
• 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. 17
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D184B140U02
G00527
max. 45°
1
G00041
Straight outlet section
≥ 2 x DN
2
2xDN
3xDN
G00037
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4.6.3

Vertical connections

• Vertical installation for measuring abrasive fluids, preferably with
flow in upward direction.
Fig. 18
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4.6.4

Horizontal connections

• Meter tube must always be completely full.
• Provide for a slight incline of the connection for degassing.
Fig. 19
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4.6.5

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. 20
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4.6.6

Strongly contaminated fluids

• For strongly contaminated fluids, a bypass connection according
to the figure is recommended so that operation of the system can
continue to run without interruption the during the mechanical
cleaning.
Fig. 21
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FSM4000
Installation
G00206
3°
G00038
2
G00040
G00042
27