Installation; Installation Conditions; General Information; Inlet And Outlet Sections - ABB SwirlMaster FSS430 Commissioning Instructions

5

Installation

DANGER
Danger of explosion if the device is operated with the
transmitter housing or terminal box open!
Before opening the transmitter housing or the terminal box,
note the following points:
— Check that a valid fire permit is available.
— Make sure that there is no explosion hazard.
— Switch off the power supply before opening and observe
a waiting time of t > 20 minutes.
5.1

Installation conditions

5.1.1

General information

A Vortex or Swirl flowmeter can be installed at any point in the
pipeline system. However, the following installation conditions
must be considered:
— Compliance with the ambient conditions
— Compliance with the recommended inlet and outlet
sections
— The flow direction must correspond to that indicated by
the arrow on the sensor
— Compliance with the required minimum interval for
removing the transmitter and replacing the sensor
— Avoidance of mechanical vibrations of the piping (by fitting
supports if necessary)
— The inside diameter of the sensor and the piping must be
identical
— Avoidance of pressure oscillations in long piping systems
at zero flow by fitting gates at intervals
— Attenuation of alternating (pulsating) flow during piston
pump or compressor conveying by using appropriate
damping devices. The residual pulse must not exceed 10
%. The frequency of the conveying equipment must not be
within the range of the measuring frequency of the
flowmeter.
— Valves / gates should normally be arranged in the flow
direction downstream of the flowmeter (typically: 3 x DN).
If the measuring medium is conveyed through piston
pumps / plunger pumps or compressors (pressures for
fluids > 10 bar [145 psi]), it may be subject to hydraulic
vibration in the piping when the valve is closed. If this
does occur, the valve absolutely has to be installed in the
flow direction upstream of the flowmeter. Suitable
damping devices (e.g. air vessels) might need to be fitted.
16 CI/FSS/FSV430/450-EN Rev. D | SwirlMaster FSS430, FSS450 VortexMaster FSV430, FSV450
— When fluids are measured, the sensor must always be
filled with measuring medium and must not run dry.
— When fluids are measured and during damping, there
must be no evidence of cavitation.
— The relationship between the measuring medium and the
ambient temperature must be taken into consideration
(see data sheet).
— At high measuring medium temperatures > 150 °C
(> 302 °F), the sensor must be installed so that the
transmitter or terminal box is pointing to the side or
downward.
5.1.2

Inlet and outlet sections

Vortex flowmeters FSV430, FSV450
In order to maximize operational reliability, the flow profile at
the inflow end must not be distorted if at all possible.
The figures below show the recommended inlet and outlet
sections for various installations.
A
≥15 x DN ≥ 5 x DN
C
≥15 x DN ≥ 5 x DN
Fig. 6: Straight pipe sections
Installation Inlet section
A Straight pipe section min. 15 x DN
B Valve upstream of
min. 50 x DN
the meter tube
C Pipe reduction
min. 15 x DN
D Pipe extension
min. 18 x DN
B
≥50 x DN ≥ 5 x DN
D
≥18 x DN ≥ 5 x DN
Outlet section
min. 5 x DN
min. 5 x DN
min. 5 x DN
min. 5 x DN
G11751