9 Measurement
9.3 Start of the measurement
FLUXUS F60*
2017-10-16, UMFLUXUSF60xV5-0EN
104
Fine adjustment of the transducer distance
• If the displayed transducer distance is adjusted, press ENTER.
The measuring run for the positioning of the transducers is started.
The bar graph
S=
shows the amplitude of the received signal, see Fig. 9.1.
• Shift one of the transducers slightly within the range of the recommended transducer
distance until the bar graph reaches the max. length (max. 6 squares).
The following quantities can be displayed in the upper line by pressing key
and in
the lower line by pressing key
, see Fig. 9.2:
•
■
<>
■
=
: transducer distance
•
time
: transit time of the measuring signal in
μ
s
•
S=
: signal amplitude
•
Q=
: signal quality, bar graph has to have max. length
If the signal is not sufficient for a measurement,
Q= UNDEF
will be displayed.
In case of large deviations, check if the entered parameters are correct or repeat the
measurement at a different point on the pipe.
After the precise transducer positioning, the recommended transducer distance is dis-
played again.
• Enter the current (exact) transducer distance.
• Press ENTER.
Repeat the steps for all channels on which a measurement is made. The measurement
will be started automatically.
Fig. 9.1:
Diagnostics window
Fig. 9.2:
Diagnostics window
Measuring\Channel\...\Transd. Distance\54 mm
S=
■■■■■■
A:
■
<>
■
=53.9 mm!
S=
■■■■■■
Q:
■■■■■■■■■■■■
time=
94.0 µs
Q:
■■■■■■■■■■■