Canon TX-F, Руководство по эксплуатации

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3.4 Display on Measurement Screen
– 9 –
3.4.2 After Measurement
When measurement has been done normally
Level meter
Level meter is a mark that shows the level of the waveform of the signal
obtained by detecting light reflected from the cornea when air is blown onto
the eye.
When reflected light is obscured by the eyelid or eyelashes, the waveform of
the signal becomes low, reducing the reliability of the measurement value.
Therefore, the level meter can be used to check the reliability of the measured
values.
To display the level meter, set “
( ) LEVEL ” to ON as described on page 2/3
of SET mode. Level meter of the newest measurement will be displayed on the
measurement mode screen. Level meter of all the measured values can be seen
in the display mode screen.
NOTE: Maximum level of the level meter differs for each eye, due to differ-
ences in corneal reflection rates.
F U L L AU TO ( 3 ) N o . 0 0 0 0 0 1
mmHg
STD
[ , , ]
[ , , ]
3 0
R
17 8 7 7.2
9 9 8 8.9
L
STD value
The value calculated from measurement data (maximum
of 10 data) in memory is displayed. The upper data is the
right side eye’s STD value, and the lower one is the left
side eye’s value.
After the first measurement:
Value to the first decimal place
After the second measurement:
Value with higher reliability
After more than three measurements:
The most appropriate value “standard value” obtained
by reliability and statistically processing the data.
However, measurement with low reliability mark (*)
will not be included in the calculation.
Measurement data
Maximum of three measurements are displayed in the
order set from “
ORDER
” on page 1/3 of SET mode.
The upper row is the data of the right side eye, and the
lower row is the data of the left side eye.
Maximum of 10 measurements for each eye can be seen in
DISPLAY mode. See chapter 6.
Serial number
Serial number counts up after printing, transferring or
deleting the data, or after function is restored from the
power-saving mode if “
COUNT
” on page 1/3 of SET mode
is set to “
ON
”.
Low reliability mark (*)
Mark that appears when the reliability of the measurement
has been determined to be low after multiple measurement
values have been statistically analyzed.
The height of the signal waveform was high.
The height of the signal waveform was low.