Marco Nidek - ARk-900
by Marco Nidek

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DESCRIPTION
Provides the practitioner objective measurements of refraction, and radius of corneal curvature together in one instrument

The ARK-900 incorporates many impressive features such as Marco’s exclusive Advanced Refraction Logic, Averaged multiple readings, Automatic binocular P.D. measurement, and calculation for near PD., as well as a mode for monocular P.D. and corneal diameter measurements. An electronic joystick elevation controls makes alignment and focusing a simple and fast one-handed operation.        The instrument can be used separately as an auto refractor, keratometer, or of course, both simultaneously. All functions are conveniently displayed on a high resolution TV monitor and the patient data appears on a single printout.

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-nazier
Wed Sep 10 2025
service manual

good day all. i am looking for a service manual for Nidek ARK 900 please, the problem is keratometry only reads when out of focus any suggestuions would help, thank you

Nazier Varachia

Crescent Optical- South Africa

fzar@icon.co.za


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-hoosier
Tue Jan 31 2017
trouble w papet

how do you load paper

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-gamble7117
Mon Mar 30 2015
printer stopped working

how should we proceed?

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FEATURES

[list]    [*] High speed mode    [*] Objective refraction measurements    [*] Accurate corneal diameter readings    [*] Auto PD calculation    [*] Built in printing function    [/list]

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