16 Advanced functions
16.3 Cut-off flow FLUXUS F502TE
2020-05-29, UMFLUXUS_F502TEV1-5EN
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16.3 Cut-off flow
The cut-off flow is a lower limit for the flow velocity. All measured flow velocities that are lower than the limit and their
derived quantities are set to zero.
The cut-off flow can depend on the flow direction. The cut-off flow is set in the menu item Special Funct.\
SYSTEM settings\Measuring\Cut-off Flow.
• Select sign to define a cut-off flow depending on the flow direction. One limit is set for the positive and another for the
negative flow velocity.
• Select absolut to define a cut-off flow not depending on the flow direction. A limit is set for the absolute value of the
flow velocity.
• Press ENTER.
• Select factory to use the default limit of 2.5 cm/s (0.025 m/s) for the cut-off flow.
• Select user to enter the cut-off flow.
• Press ENTER.
If Cut-off Flow\sign and user are selected, 2 values have to be entered:
• Enter the cut-off flow.
• Press ENTER.
All positive values of the flow velocity below this limit are set to zero.
• Enter the cut-off flow.
• Press ENTER.
All negative values of the flow velocity above this limit will be set to zero.
If Cut-off Flow\absolut and user are selected, only one value has to be entered:
• Enter the cut-off flow.
• Press ENTER.
All absolute values of the flow velocity below this limit are set to zero.
Special Funct.\SYSTEM settings\Measuring\Cut-off Flow
Special Funct.\...\+Cut-off Flow
Special Funct.\...\-Cut-off Flow
Special Funct.\...\Cut-off Flow
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