12 Advanced measuring functions FLUXUS F808, F809
UMFLUXUS_F808_8091V1-2-1EN, 2019-08-23 115
12.4 Settings of the NoiseTrek parallel beam mode
The NoiseTrek parallel beam mode works using parallel mounted transducers. It improves the signal quality when mea-
suring on small pipes or strongly attenuating fluids.
12.5 Settings of the HybridTrek mode
The HybridTrek mode combines the TransitTime mode and the NoiseTrek mode. During a measurement in the HybridTrek
mode, the transmitter automatically toggles between the TransitTime mode and the NoiseTrek mode in order to receive an op-
timal measuring result when the gaseous or solid content increases temporarily.
If there are valid measured values in the NoiseTrek mode, the transmitter can periodically toggle to the TransitTime mode
in order to check if a measurement in the TransitTime mode is possible again. The time interval and the duration of the
checking are set as follows:
Select Special Funct.\SYSTEM settings\Measuring. Press ENTER until the list
item Enable NoiseTrek is displayed. Select on to enable the NoiseTrek mode, off to
disable it. Press ENTER.
Select on to enable the NoiseTrek parallel beam mode, off to disable it. Press ENTER.
This display will only be indicated if the NoiseTrek mode is enabled.
Note! Due to its higher measuring accuracy, the TransitTime mode should be used preferentially over the
NoiseTrek mode.
Select Special Funct.\SYSTEM settings\Measuring. Press ENTER until the list
item Enable NoiseTrek is displayed. NoiseTrek mode on to enable the NoiseTrek
mode, off to disable it. Press ENTER.
Select no to deactivate the automatic toggling between the TransitTime and the NoiseTrek
mode. If no is selected, the NoiseTrek mode can only be activated and deactivated manu-
ally during the measurement.
Select yes to activate the automatic toggling between the TransitTime and the NoiseTrek
mode. If yes the NoiseTrek mode can also be activated and deactivated manually during
the measurement.
Press ENTER.
This display will only be indicated if the NoiseTrek mode is enabled and the NoiseTrek par-
allel beam mode has not been activated.
If the automatic toggling between the TransitTime and the NoiseTrek mode is activated, the
toggling parameters have to be configured.
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. If 0 (zero) is entered, the transmitter
does not toggle to the NoiseTrek mode.
Enter the time after which the transmitter has to toggle to the TransitTime mode if there are
no valid measured values in the NoiseTrek mode. If 0 (zero) is entered, the transmitter
does not toggle to the TransitTime mode.
Enter the time after which the transmitter has to toggle to the TransitTime mode. If 0 (zero)
is entered, the transmitter does not toggle to the TransitTime mode.
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.
Enable NoiseTrek
off >ON<
NT parallel beam
off >ON<
Enable NoiseTrek
off >ON<
Auto NoiseTrek ?
no >YES<
TT-Failed |After
NoiseTrek | 40s
NT-Failed |After
TransTime | 60s
NT-Ok,but | Each
check TT | 300s
Keep TT | For
checking | 5s
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