----------------------------------------------------------------------------------------------- Auto Ref/Keratometer CRK-8800 36
[Purpose]
To make the accuracy of KER data is in the allowed measurement tolerance after the
optical re-adjustment or the like…
[Preparation]
(1) KER model eyes (R= 6.71, 7.29, 7.93, 8.76, 9.51)
(2)
Model eye stand
.
[Procedure]
(1)
Enter KER TEST in Engineer Setup Mode
.
< Modification of the focus coefficient>
(2) Set the stand with the model eye of which setup data is to be measured at the
position of chin rest.
(3) By adjusting the joystick, make Mire rings on the screen be concentric with the
Alignment ring and be mostly focused between forward and backward direction.
(4) Press FOCUS key to start the focus coefficient setup.
(5) Move joystick button backward to move the head of instrument by 1.5 mm from the
focused position found in (3). After moving, the Mire rings will be displayed out of
focus.
(6) Press joystick button, then the measurement will be performed.