19 Advanced functions
FLUXUS H721 19.2 FastFood mode
175
UMFLUXUS_H721V1-5EN, 2022-05-15
19.1.4 Totalizer behavior after the measurement is stopped
It is possible to define the totalizer behavior after the measurement is stopped or after a reset of the transmitter.
• Select the menu item Totalizers in the program branch Special functions.
• Press ENTER until the menu item Keep totalizers is displayed.
•Select Yes if the values of the totalizers are to be stored and used for the next measurement. Select No if the totalizers
are to be set to zero.
• Press ENTER.
19.1.5 Totalizer sum
The sum of the totalizers for both flow directions can be displayed in the status line during the measurement.
• Select the menu item Totalizers in the program branch Special functions.
• Press ENTER until the menu item Show ΣQ is displayed.
•Select Yes to display the totalizer sum. Select No if it is not to be displayed.
• Press ENTER.
19.1.6 Totalizer storing
The totalizer values can be stored now.
• Select the menu item Special functions\Data logger\Configuration.
• Press ENTER until the menu item Store totalizers is displayed.
•Select Yes.
• Press ENTER.
19.2 FastFood mode
The FastFood mode allows to measure highly dynamic flows. A continuous adaptation to changing measuring conditions
is only partially realized in the FastFood mode.
• The sound speed of the fluid is not updated. The last measured value of the sound speed before toggling to the
FastFood mode is used.
• It is not possible to change the measuring channel. The measurement takes place on one channel only. As long as the
FastFood mode is activated, no measurement is carried out on the other channels.
• The outputs of the channel activated in FastFood mode can still be used. They are updated synchronously with the
FastFood measuring rate, independently from the storage rate.
• Outputs for further channels (multi-channel measurement) transmit an error value.
• The measured values are stored with the storage rate of the FastFood mode.
• The FastFood mode has to be enabled and activated.
19.2.1 Enabling/disabling the FastFood mode
• Select the menu item Measurement modes.
• Press ENTER until the menu item Enable FastFood is displayed.
•Select On to enable the FastFood mode. Select Off to disable it.
• Press ENTER.
If On is selected, the menu item Measuring rate FastF is displayed. The FastFood measuring rate indicates in which
interval measured values are transmitted to the process outputs.
•Select Default if no customized inputs are to be made (default: 50 ms).
•Select Customized if a value for the FastFood measuring rate is to be entered.
• Enter a value within the range 20…200 ms.
• Press ENTER.
Special functions\Totalizers\Keep totalizers
Special functions\Totalizers\Show ΣQ
Special functions\Measurement\Measurement modes\Enable FastFood
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