Nidec Auto Ref/Keratometer ARK-1a

Warning: This procedure requires trained personnel!

Removed the two fixing pins and the stack of chinest paper from the chinrest?

Removed the cap from the spherical model eye and put the model eye on the chinrest with its lens toward the measuring window and then inserted the fixing pins?

Checked the lens surface of the model eye for soiling?

Aligned the level of the spherical model eye with the eye level marker by operating the chinrest up/down button?

Set the '1. STEP' parameter to '0.01D'?

Performed AR and KM measurements in the same manner as normal AR and KM measurements?

CAUTION! If the measured result is higher than the value indicated on the model eye, contact NIDEK or your authorized distributor.

NOTE! Always store the model eye with its cap on. If the lens surface is soiled or flawed, measurement accuracy cannot be properly checked.

Warning: This procedure requires trained personnel!

Printer cover opened and paper roll removed

Vacuum cleaner applied to the auto cutter to remove paper residue

Never blow off paper residue with a blower. If paper residue settles on the internal working structure, malfunction may result.

Printer paper supplied as it was

Sign off on the printer cleaning

Warning: Only clean the measuring window when the 'CHECK MEASURING WINDOW.' message is displayed or the lens is visibly soiled.

Check for dirt on the measuring window before use

NOTE: Use a thin stick that will not scratch glass lenses.

Blow off any dust on the measuring window with a blower

Wrap lens cleaning paper around a thin stick and wipe the lens of the measuring window with a material moistened with alcohol

NOTE: Wipe lightly from the center of the measuring window to the outside in a circular motion.

Wipe off the glass of the mire ring around the measuring window using gauze or such dampened with alcohol

Check if the window is cleaned using a penlight. If soiled areas remain, clean the window again with new cleaning paper.

NOTE: When the '61. WINDOW CHECK' parameter is set to 'YES' or 'DAY', the measuring window is checked for cleanliness at device start-up.

Remove the two fixing pins from the chinrest

Number of chinrest papers removed from the pack

An entire pack of chinrest paper cannot be attached. Attach a stack with a thickness of 6 mm of less.

Pass the fixing pins through the chinrest paper stack

Attach the stack of chinrest paper onto the chinrest

1) Insert the pin into the hole of the chinrest while holding both fixing pin and stack of paper.

Push the other pin into the hole of the chinrest

CAUTION: Never use an organic solvent such as paint thinner or alcohol.

Lightly wipe the exterior of the LCD. Do not press the LCD using an object with a hard tip and keep magnetic objects away from the LCD.

Never use a sponge or cloth soaked in water. The water may leak into the inside of the device and cause device failure.

Is the cover or panel of the device clean?

Are there any severe stains on the device?

Is the LCD clean and undamaged?

Sign off on the cleaning procedure