- OUT
Sum of SPH and CYL of examinee's eye
is over –25D
Impossible to measure
Radius of curvature is under 5.0 mm
Objective glass in the measurement
window is dirty
Clean the glass
C OUT
Astigmatism is over 10D
Impossible to measure
Corneal stigmatism is over 15D
Objective glass in the measurement
window is dirty
Clean the glass
c. Message on printing
Message
Cause
Method to deal with
NO PRINT DATA
There is no measurement data
Print after measurement
PRINTER PAPER EMPTY
No printing paper
Load a roll of printing paper
2. Printing paper replacement
Replace the roll of printing paper as soon as possible if the red line appears in the paper.
1. Press the printer button to open the printer cover.
2. Remove the used paper.
3. Install a roll of new paper into the printer housing and close the printer cover.
4. At this time, the printer detects the change of paper, and cuts the paper approximately "2 cm" for
initializing paper settings. (It takes about 3 seconds to complete.)
3. Chinrest paper replacement
1. Pull out the two pins on the chinrest.
2. Insert the pins into the holes on the chinrest paper. More than 50 sheets of paper can be attached.
3. Insert the pins straight into the holes on the chinrest.
4. Fuses replacement
1. Turn off the power.
2. Remove the power cord from the electrical inlet.
3. Insert flatblade screwdriver into notches in the fuseholder cover. Then turn the screwdriver
countclockwise.
4. Replace the fuses and reset the fuseholder cover in its original positions.
5. Fuse rating: T3.15A 250V.
5. Cleaning
1. Basically, keep this instrument clean. Don't use volatile object, thinner or benzene, etc.
2. Polish each part with a dry cloth containing detergent solution.
6. When moving the instrument
1. Turn OFF the power switch.
2. Disconnect the power cable.
3. Close the stage holding dial in the clockwise direction.
4. Move this machine holding the lower part of the mains to keep horizontally.
U
SER
MANUAL
> S
ELF
INSPECTION
AND
MAINTENANCE
AKR300 - Auto Kerato Refractometer > V3 - 04-2020
52
Summary of Contents for AKR 300
Page 1: ...USER MANUAL ...
Page 4: ...I INTRODUCTION ...
Page 9: ...II FEATURES ...
Page 11: ...III NOTES FOR USING THE INSTRUMENT ...
Page 13: ...IV DESCRIPTION ...
Page 17: ...V PRACTICING THROUGH MODEL EYE ...
Page 20: ...VI MEASUREMENT ...
Page 33: ...VII OTHER MODES ...
Page 50: ...VIII SELF INSPECTION AND MAINTENANCE ...
Page 54: ...IX CLASSIFICATIONS AND SPECIFICATIONS ...
Page 57: ...X COMPONENTS ...
Page 59: ...XI QR CODE ...
Page 60: ...USER MANUAL QR CODE AKR300 Auto Kerato Refractometer V3 04 2020 60 ...
Page 61: ...USER MANUAL QR CODE 61 AKR300 Auto Kerato Refractometer V3 04 2020 ...
Page 62: ...USER MANUAL QR CODE AKR300 Auto Kerato Refractometer V3 04 2020 62 ...