13 User modes
13.2 ExpertUser mode FLUXUS H721
2022-05-15, UMFLUXUS_H721V1-5EN
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•Select Yes to apply the calibration curve for negative flow velocities as well. Select No if it is not to be used for negative
flow velocities.
13.1.4 Start in measuring mode
For some application it is necessary to start the measurement in a particular measuring mode.
• Select the menu item Special settings in the program branch Options.
• Press ENTER until the menu item Start in meas. mode is displayed.
The menu item Start in meas. mode will only be displayed if the FastFood mode is enabled.
•Select TransitTime or FastFood to start the measurement in the corresponding mode.
• Press ENTER.
The measuring mode FastFood can only be selected if it is available and activated in the transmitter.
13.2 ExpertUser mode
Some menu items that are not visible in the StandardUser mode are displayed.
13.2.1 Limit of the flow velocity
Single outliers caused by heavily disturbed surroundings can appear among the measured values of the flow velocity. If
these outliers are not ignored, they will affect all derived physical quantities, which will be unsuitable for the integration
(e.g., pulse outputs).
In the ExpertUser mode it is possible to enter a limit for the flow velocity.
It is possible to ignore all measured flow velocities higher or lower than the preset limit. In this case an error will be output.
• Select the menu item Special settings in the program branch Options.
• Press ENTER until the menu item Flow velocity limit is displayed.
•Select Off if no limit for the flow velocity is to be used.
•Select Default if no customized inputs are to be made.
•Select Customized to define a limit for the flow velocity.
• Press ENTER.
Options\Special settings\Multi-point calibration\Bidirectional use
Options\Special settings\Start in meas. mode
Options\Special settings\Start in meas. mode\Only ... mode
The ExpertUser mode is intended for experienced users with advanced application knowledge.
Changed parameters can affect the StandardUser mode and lead to wrong measured values or to a measurement
failure when setting up a new measuring point.
Some of the defined parameters remain activated when switching to the StandardUser mode. These parameters are
displayed but cannot be changed.
Options\Special settings\Flow velocity limit
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