13  User modes
FLUXUS WD  13.1  StandardUser mode
103
UMFLUXUS_WDV1-3EN, 2018-07-16
NoiseTrek mode
If the proportion of gas or solid particles is high, the transmitter can toggle to the NoiseTrek mode.
• Select the menu item Special settings in the program branch Options.
• Press ENTER until the menu item Enable NoiseTrek is displayed.
•Select Default if no user-defined inputs are to be made.
•Select On to enable the NoiseTrek mode or Off to disable it. 
• Press ENTER.
In order to manually toggle between the TransitTime and the NoiseTrek mode during the measurement, press key 
when the measured value is displayed.
HybridTrek mode
The HybridTrek mode combines the TransitTime and the NoiseTrek mode. During a measurement in the HybridTrek
mode, the transmitter automatically toggles between the TransitTime and the NoiseTrek mode depending on the gaseous
or solid content in the fluid in order to receive valid measuring values.
If the NoiseTrek mode is enabled, the menu item HybridTrek will be displayed.
•Select On to activate the automatic toggling between the TransitTime and the NoiseTrek mode. If On is selected, the 
NoiseTrek mode can also be activated and deactivated manually during the measurement.
•Select Off to deactivate the automatic toggling between the TransitTime and the NoiseTrek mode. If Off is selected, 
the NoiseTrek mode can only be manually activated and deactivated during the measurement.
• Press ENTER.
If the automatic toggling between the TransitTime and NoiseTrek mode is activated, further parameters have to be config-
ured.
• Enter the time after which the transmitter has to toggle to the NoiseTrek mode if there are no valid measured values in 
the TransitTime mode.
• Press ENTER.
• Enter the time after which the transmitter has to toggle from the NoiseTrek mode to the TransitTime mode if there are no 
valid measured values.
• Press ENTER.
If there are valid measured values in the NoiseTrek mode, the transmitter can periodically toggle to the TransitTime mode
in order to check whether a measurement in the TransitTime mode is possible again. The time interval and the duration of
the checking are set as follows:
• Enter the time after which the transmitter has to toggle to the TransitTime mode. If zero is entered, the transmitter does 
not toggle to the TransitTime mode.
• Press ENTER.
Due to its higher measuring accuracy, the TransitTime mode should be used preferentially over the NoiseTrek mode.
Options\Special settings\Enable NoiseTrek
Options\Special settings\HybridTrek
Options\Special settings\HybridTrek\TT -> NT
Options\Special settings\HybridTrek\NT -> TT
Options\Special settings\HybridTrek\NT -> TT possible