Viscosity Function - Siemens SITRANS FC720 Operating Instructions Manual

Coriolis c
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FC7x0
Advanced functions
▪ one-stage mode with single valve
▪ two-stage mode to control two valves for accurate filling
Without using an external flow computer, data related to the process can be transmitted
via communication protocol. The error management function allows the user to set alarms
and warnings accordingly the application needs.
Fig. 97: One-stage mode (The above diagram illustrates the fundamental functionality for one of several combination
possibilities)
Fig. 98: Two-stage mode (The above diagram illustrates the fundamental functionality for one of
several combination possibilities)

20.4 Viscosity function

The Viscosity function allows the user to have an estimation of the viscosity of the fluid.
The function can be used as redundant viscosity control or as reference value to activate
other processes like for instance fluid heating systems.
The viscosity estimation is calculated based on a comparison between measured
pressure loss Δp and a "calculated" Δp
meter (refer to related instruction manual for the correct installation).
168 / 180
1
Storage tank
SITRANS FC
1
2
Storage tank
Pump
SITRANS FC
A5E52748387-AA, 2023/09
2
Valve
6
3
Valve "A"
Valve "B"
HART
between two points of the pipe nearby the flow
cal
Viscosity function
3
5
4

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