Canon TX-20 Full Auto Tonometer Manual
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5TypesofMeasurements
Settings for Intraocular Pressure Measurements
In the intraocular pressure settings menu, you can configure the settings of the intraocular pressure
measurement range switching, units of intraocular pressure measurements, display of received
light level, warning display threshold for intraocular pressure, display of error screen, and display of
warning screen/waveform.
measurement range switching, units of intraocular pressure measurements, display of received
light level, warning display threshold for intraocular pressure, display of error screen, and display of
warning screen/waveform.
How to Enter the Intraocular Pressure Measurement Menu
MENU screen >
Measure tab > [Tonometer]
Setting items
Description
Factory
settings
Range
Switch the range of intraocular pressure that can be measured.
[30]: Measures a range from 0 to 30 mmHg. If the pressure is over 30
mmHg, it switches to 60 mmHg.
[60]: Measures a range from 25 to 60 mmHg. If the pressure is under 25
mmHg, it switches to 30 mmHg.
30
Unit
Set the units for intraocular pressure measurements.
[mmHg]: Units of measurement are shown in mmHg.
[hPa]: Units of measurement are shown in hPa.
[hPa]: Units of measurement are shown in hPa.
mmHg
Level Meter
Set to enable showing the received light level.
[ON]: Show the received light level.
[OFF]: Do not show the received light level.
[OFF]: Do not show the received light level.
ON
Upper IOP
Warning
Warning
Set the upper pressure limit at which measurement is stopped (only
enabled in full auto mode).
enabled in full auto mode).
[17 to 25 mmHg]: Upper limit of intraocular pressure at which to stop
measurement
[23 to 33 hPa]: Upper limit of intraocular pressure at which to stop
measurement
[OFF]: Do not show message or stop measurement.
measurement
[23 to 33 hPa]: Upper limit of intraocular pressure at which to stop
measurement
[OFF]: Do not show message or stop measurement.
18
Lower IOP
Warning
Warning
Set the lower pressure limit at which measurement is stopped (only
enabled in full auto mode).
enabled in full auto mode).
[1 to 9 mmHg]: Lower limit of intraocular pressure at which to stop
measurement
[1 to 12 hPa]: Lower limit of intraocular pressure at which to stop
measurement
[OFF]: Do not show message or stop measurement.
measurement
[1 to 12 hPa]: Lower limit of intraocular pressure at which to stop
measurement
[OFF]: Do not show message or stop measurement.
OFF
Error Display Set whether to show an anterior segment image when a measurement
error occurs.
[ON]: Shows image.
[OFF]: Does not show image.
[OFF]: Does not show image.
ON
Warning
Display
Display
Set whether to show three anterior segment images and waveform when
measurements are inconsistent.
measurements are inconsistent.
[ON]: Shows images and waveform.
[OFF]: Does not show image and waveform.
[OFF]: Does not show image and waveform.
ON
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