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Description
3.1 Design
3.1
Design
The SITRANS FC410 flowmeter uses the Coriolis principle to measure flow. The device is a
one channel flowmeter with Modbus RTU RS 485 output.
Image 3-1
Image 3-2
Flowmeter design
All primary process measurement of massflow, volumeflow, density and process
temperature are made in the MFL/sensor front end.
The sensor comprises two parallel bent tubes welded directly to the process connections at
each end via a manifold.
The sensors are available in AISI 316L stainless steel and Hastelloy C22. The enclosure is
made of AISI 304 stainless steel which has a pressure rating of 20 bar (290 psi) for DN 15 to
DN 50 and 17 bar (247 psi) for DN 80. The burst pressure for all sizes is in excess of 160
bar.
The sensor enclosure can be equipped with a pressure guard or flushed with dry inert gas at
the threaded ports for non-hazardous applications only.
Note
Ex certification requires that the threaded ports always remain closed.
The Mini Flow Link is available in an aluminum enclosure with an ingress protection grade of
IP67/NEMA 4X. It has a 4-wire M12 cable or terminated cable connection for communication
and power supply.
22
Flowmeter - M12 connection
Flowmeter – terminated cable
Operating Instructions, 02/2016, A5E33120874-AC
FC410 with Modbus
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