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FLOWSIC100 Flare · Addendum to Operating Instructions · 8025365/V1-0/2020-05 · © SICK Engineering GmbH
Installation
4.4
Installation sequence
Carry out all assembly work on-site.
This includes:
▸
Determining the nozzle position
▸
Welding the nozzle on
The nozzles are manufactured at the factory precisely according to customer specifica
-
tions for fitting on the pipeline.
▸
For retractable installation:
Fitting the ball valves (measuring system without optional spool piece)
▸
Fitting the sender/receiver units
4.5
Geometry Calculator
Certain geometric parameters must be determined and calculated for installation of
FLSE100-XT sender/receiver units.
The following dimensions can be calculated using the Geometry Calculator:
● Transducer distance a (offset between nozzles),
The following parameters must be determined during installation for calculation of the
transducer distance: Circumference and nozzle angle
● Wetted part length wL,
For installation of the sender/receiver units, the wetted part length is calculated from:
– Circumference
– Wall thickness
– Gasket thickness
– Nozzle length
– For retractable installation: Ball valve length
– Nozzle angle
– For cross-duct versions additionally: Transducer distance a
● Geometric installation parameters for commissioning of the measuring system,
NOTICE:
To ensure low measuring uncertainty, the geometric parameters must be
determined as accurately as possible. Maximum tolerances:
– Nozzle positions and fitting angle of the nozzles: ±1 mm / ±1 °
– Measurement of the nozzle length: ±1 mm
– Measurement of the ball valves: ±1 mm
NOTICE:
The exact pipe wall thickness must be determined for precise calculation of the
pipeline inner diameter. “Schedule” information from the applicable standards
is less accurate than an exact measurement.
The wall thickness must be determined accurately to 0.1 mm. SICK
recommends using a suitable ultrasonic wall thickness measuring device.
The Geometry Calculator for installation of FLSE100-XT sender/receiver units
is available on the provided product CD (Geometry Calculator for "Flare-XT").
