Canon TX-20 Full Auto Tonometer - Manual (Page 62)

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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.
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.
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.
ON
Upper IOP
Warning Set the upper pressure limit at which measurement is stopped (only
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.
18
Lower IOP
Warning Set the lower pressure limit at which measurement is stopped (only
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.
OFF
Error Display Set whether to show an anterior segment image when a measurement
error occurs.
[ON]: Shows image.
[OFF]: Does not show image.
ON
Warning
Display Set whether to show three anterior segment images and waveform when
measurements are inconsistent.
[ON]: Shows images and waveform.
[OFF]: Does not show image and waveform.
ON
L-IE-5191C_TX-20.indb 62 2013/07/18 13:10:36