SensyMaster FMT430, FMT450 THERMAL MASS FLOWMETER | OI/FMT430/450-EN REV. B 101
Selection of unit for mass flow.
Table 2: Units for the mass flow on page 96.
The selection applies to the display of the current mass flow, and for the parameters related to mass flow such as Qm
Max
Set the upper range value for the mass flow.
Selection of unit for the standard volume flow.
Table 1: Units for the standard volume flow on page 96.
The selection applies to the display of the current standard volume flow and for the parameters related to standard volume
flow such as Qv@ Max and Qv@ Max. DN.
Selection of the standard state for standard volume flow.
0°C 1atm: Standard state 0 °C at 1 bar
15°C 1bar: Standard state 15 °C at 1 bar
20°C 1bar: Standard state 20 °C at 1 bar
• 25°C 1bar: Standard state 25 °C at 1 bar
Set the upper range value for standard volume flow.
for temperature (e.g. for the associated parameters and the corresponding process values).
See Table 5: Temperature units on page 96.
Set the upper range value for the measuring medium temperature.
Set the lower range value for the measuring medium temperature.
unit for the mass counters and the pulse outputs.
See Table 7: Units for the mass totalizer on page 96.
Selection of the unit for the volume totalizers and the pulse outputs.
See Table 8: Units for the standard volume totalizer on page 97.
Select the damping for flow measurement.
The value set here relates to 1 τ
(Tau). The value refers to the response time for a step flowrate change. It affects the
instantaneous value in the display and at the current output.
Default setting: 1 second
Set the switching threshold (0
to 10 %) for the low flow cut-off.
If the flow rate is below the switching threshold, there is no flow measurement. The setting of 0 % deactivates the low flow
cut
-off.
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