ABB SensyMaster FMT430 Operating Instructions Manual page 101

SensyMaster FMT430, FMT450 THERMAL MASS FLOWMETER | OI/FMT430/450-EN REV. B
Menu / parameter
Unit Massflow Qm
Qm Max
Unit Volumeflow Qv@
Std. Conditions Vol@
Qv@ Max
Unit Temperature
Tm Max
Tm Min
Mass Totalizer
Volume Totalizer
Damping Q
Low Flow Cut Off
Description
Selection of unit for mass flow.
Refer to 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
and Qm DN.
Max
Set the upper range value for the mass flow.
Selection of unit for the standard volume flow.
Refer to 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.
Selection of unit 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.
Selection of the 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.
Default setting: 1.0 %
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Max