Canon TX-20 Full Auto Tonometer Manual

44

4BasicOperation

Use the operation lever and the measurement unit vertical movement ring to display the 
patient's pupil in the monitor. 

Operation lever 

Measurement unit 

vertical movement 

ring

Duringfullauto/auto-alignment
Show all of the pupil in the monitor. 

Duringmanualalignment
Have the alignment circle overlap close to the center of the pupil. Also, align the corneal light point 
on the same straight line as the vertical alignment guide (see page 45). 

Howtousetheoperationlever
•  Left tilt:  

 The measurement unit moves to the left a little according to the left tilt. 
The motion is greater and speed increases as the tilt surpasses the maximum 
tilt position (the buzzer sounds briefly). 

•  Right tilt:  

 The measurement unit moves to the right a little according to the right tilt. 
The motion is greater and speed increases as the tilt surpasses the maximum 
tilt position (the buzzer sounds briefly).

•  Forward tilt:  

 The measurement unit moves toward the patient a little according to the forward 
tilt. 
The motion is greater as the tilt surpasses the maximum tilt position (the buzzer 
sounds briefly).

•  Backward tilt:    The measurement unit moves toward the examiner a little according to the 

backward tilt. 
The motion is greater as the tilt surpasses the maximum tilt position (the buzzer 
sounds briefly).

•  Rotate right:   Measurement unit moves up. 

•  Rotate left:  

Measurement unit moves down.

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2013/07/18   13:10:28