Installation; Installation Conditions; Sensor Insulation - ABB VA Master FAM540 Commissioning Instructions

6

Installation

6.1

Installation conditions

— The installation recommendations of VDI / VDE Directive
3513 must be observed.
— The flowmeter is installed vertically in the piping. The
measuring media must flow from bottom to top.
— Keep the device as far as possible from pipe vibrations
and powerful magnetic fields.
— The piping should be the same size as the connection size
of the flowmeter.
— Inlet and outlet sections are generally not required. Care
should be taken to avoid flow turbulence, pulsations,
pressure shocks and other flow instabilities in order to
prevent measuring inaccuracies, increased wear or
damage.
— When selecting devices, pay close attention to the
chemical resistance of the wetted parts of the device and
the process connection gaskets in relation to the
measuring medium.
— Avoid pulsating flow of the measuring medium. Use the
optional float damping if necessary.
— For gaseous measuring media we recommend an
undisturbed inlet length of five times the inside diameter of
the piping in accordance with VDI / VDE Directive 3513
sheet 3. Additional measures such as flow straighteners or
perforated plates may be necessary for highly unbalanced
flow profiles.
— Avoid contamination of gaseous measuring media (refer to
BGR 132-7.3.2.2.2).
— For liquid measuring media, the nominal size of the piping
should be dimensioned as large as possible (if
economically viable).
— Avoid gas inclusions in liquid measuring media.
— Use slow opening valves.
— If the flowmeter is installed in a pipeline where
decommissioning is impossible or inexpedient, a bypass
line should be provided.
— Shut-off and throttle valves should preferably be attached
to the outlet of the flowmeter.
Fig. 9: Installation of the flowmeter (example)
Refer to VDI/VDE Directive 3513 sheet 3, Selection and
Installation Recommendations for Variable Area Flowmeters.
6.1.1

Sensor insulation

Fig. 10: Insulation of the flowmeter
As shown in Fig. 10, the flowmeter may only be insulated up
to the flange diameter.
VA Master FAM540 | CI/FAM540-EN Rev. B 27
G10400