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3-40
b) Selecting measurement values to be displayed
Select measurement values to be displayed from the following 2 options.
● Actual measurement
● Bias value
c) How to display converted acoustic velocity and bias values
Select how to display the bias value from the following two options.
● Percentage bias: Converts the actual measurement using the preset bias
rate (percentage) and displays the result.
● Plus/minus bias: Adds/subtracts the preset correction value to/from the
actual measurement, and displays the result.
1) Touch the “Change Setting” button (1) on the Setup (Ultrasound Pachy)
screen to display the screen for setting converted sonic velocity and bias
value (Fig. 2).
(Fig. 1) (Fig. 2)
2) When the converted sonic velocity entry field (2) is touched, it is activated.
Enter the converted sonic velocity using the software keyboard. Initially, it is
set to 1640 m/s.
Input range of converted acoustic velocity: 1400 - 2000 m/s
3) Touch the "Display of Bias" button (3) to select the percentage bias (%) or
plus/minus bias (μm).
Using the software keyboard, enter the bias rate when percentage bias is
selected, or the correction (4) when plus/minus bias is selected. Initially, the
bias rate is set to 70 % and the correction is set to 0 μm.
Input range of bias rate: 60 - 130%
Input range of correction: -600 - +450μm
4) When a value is entered for one eye, the setting for the other eye is
automatically changed. Touch the “Initial Setting” button (5) to enter the initial
settings.
5) Touch the “OK” button (6) to apply the entered settings and close the setting
change screen. Touch the “Cancel” button (7) to discard the entered settings and
close the setting change screen.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
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