Page 8 of 20
5.1.5 BLIND DISTANCE
Press
. The
BLIND ZONE
is used to avoid undesi-
red measures near to the
transmitter
Use
and
to modify the
value. Press
to
confirm. The minimum value
is 50mm (PTU50), or 300mm
(PTU51) or 500mm (PTU56).
5.1.4 FILTER COEFFICIENT
Press
. Increasing the
value slows down the sensor
response speed.
Use
and
to modify the
value. Input a value from 1 to
99. Press
to confirm.
In fig.24 value choice
example.
Fast resp.
5÷10
Normal resp.
20
Slow resp.
40÷100
BLIND
DISTANCE
PTU50-51-56
Refernt point
BLIND
ZONE
Fig.24
Fig.25
PTU5x
- Quick Start
5.1.8 DISPLAY
Press
to access the
settings change.
With the
button is pos-
sible to select the data to
display
Press
to confirm.
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5.2 ECHO MAP
Pressing the
BK
, from RUN mode, to access directly to the echoes digital
map display, which are in
PTU50-51-56
receiving (Fig.26).
This function is useful for:
- properly orient the transducer pointing.
- verify the echoes in acquisition correctness.
- identify any false echo signals that may cause measurement errors.
OK
OK
B K
BK
D I S T: 7 2 1 m m
1
2
3
4
5 m
D I S T: 7 2 1 m m
1
2
3
4
5
m
echo signal normalization
Threshold
Distance measured
from PTU51-56 in
real time
The rectangle placed at the echo line base, indicates the
measurement range within which the echo signal in reception is
considered always valid for the distance measurement. This
interval value is variable depending on the measurement
conditions: min. ± 2.5% of the measured distance
6
Fig.26
Fig.27
