2-33
(2) Echo-waveform Viewer
You can see actual receiving echo-form here. Fig. 2.6-3 shows example of echo-waveform.
Fig. 2.6-3 Example of echo-waveform
Up and down direction buttons can expand
horizontal axis from the center of display which is cross
point at horizontal and vertical line. When you expand the echo wave by up direction button, the wave
goes left side.
You may need to move the wave
position to right side by right direction button.
Table 2.2.6-2 Key operation
Operation
Remarks
Up direction button
Expand waveform
Down direction button
Back to main menu
Right direction button
Move to right side
Left direction button
Move to left side
Change CH No (F2) key
Change waveform
(upstream/downstream/CH1/CH2)
Default Pos. (F3) key
Move to default position and waveform
(1)Good waveform
(2)Bad waveform
Fig. 2.6-4 Examples of echo-waveform
E c h o - f o r m V i e w e r C H 1 : D O W N
G : L O W
5 4 . 9 %
↑ ↓ : E x p a n s i o n ← → M o v e P o s i t i o n
B a c k
C h a n g e C H N o
D e f a u l t P o s .
As left example, "G:LOW 54.9%" means
sensitivity of receiving ultrasonic echo as
amplified 54.9% by low gain mode.
UFP-20 has 2 modes for amplification of
high and low. Normally gain mode runs by
low mode. When receiving echo will be
weaker, it will turn to high mode to get
enough signal strength.
In case of "G:LOW
≧
80.0%"(=Low gain
mode
≧
80%) or "G:HIGH **.*%" (=High
gain mode), signal strength of receiving
echo might not be enough for stable
measurement. Please refer to the chapter
3.6.2 Measurement.
This classification might not cover all
cases.
Typical
“Good” waveform.
You can expect accurate flow measurement.
Typical
“Bad” waveform.
It can not be expected accurate measurement
or No-echo-wave is received.
Содержание UFP-20
Страница 1: ...Doc No KF08 002L Portable Ultrasonic Flowmeter UFP 20 Installation Operation Manual ...
Страница 3: ... 2 The attachment of warning label is as follows Fig 1 2 Rear view of main unit Warning label ...
Страница 8: ...1 Installation ...
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Страница 130: ...2 Operation ...
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Страница 182: ...3 Other ...
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Страница 193: ...3 8 3 2 4 Dimensions 1 Main Unit Fig 3 2 4 1 Main Unit Hand Strap ...
Страница 195: ...3 10 1 Adaptor A 2 Adaptor B 3 Knob Fig 3 2 4 5 Fixture 1 Fig 3 2 4 6 Fixture 2 Fig 3 2 4 7 Z path method adaptor ...
Страница 196: ...3 11 4 Large Transducer Kit Fig 3 2 4 9 Fixture 1 Fig 3 2 4 10 Fixture 2 Fig 3 2 4 8 Large transducer ...