EDAN U60 - Page 82

U60 Diagnostic Ultrasound System User Manual Operation
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Control
Functions
Description
Parameter Range
Operations
Gain
Increases or decreases the amount
of echo information. It may brighten
or darken the PW mode image.
1-80,
in increments of 1
Gain knob
Position of
sample volume
The sample volume can be
positioned anywhere within B
images; In B+ Color/PDI+PW mode,
the sample box moves with sample
volume.
/
Trackball
Flow Type
This function is used to optimize
flow images quickly according to
current flow state. And values of
associated parameters will be
changed together with it.
H Flow /M Flow
/ L Flow
Menu controls
Quick Angle
Adjust the correction angle faster in
increments of 30°.
-79°-79°
Correction Angle
The correction line should be set
parallel to the sample vessel.
Correct the PW velocity caliper to
obtain accurate measurement of
velocity.
-79°-79°
Invert
Vertically inverts the spectral trace
without affecting the baseline.
Off: Above the baseline (towards
the probe, positive velocities) and
below the baseline（away from the
probe,. negative velocities）
On: opposite to the above.
On/Off
Base Line
Adjust the baseline position. It helps
to increase positive/negative
spectral range for evaluation.
7 levels
PRF
Adjust to raise or lower the flow
velocity range. The bigger the
value, the higher the maximum
velocity will be detected. Frame rate
will be affected by excessive lower
PRF. Aliasing may occur if low
velocity range is set for high velocity
flow.
0-15
HPRF
When exceeding the maximum
sampling frequency at certain
sample volume depth by further
increasing the PRF, the HPRF
mode is activated automatically;
when decreasing the depth and the
PRF is not limited by depth, the
system exits HPRF mode; or, switch
the HPRF menu control to “Off”, the
system exits HPRF mode.
On/Off