Birmingham Optical Group

NIDEK ARK-30 Hand Held Autorefractor/Keratometer

The ARK-30 is a lightweight multifunctional instrument. It is similar in size to a video camera, and easily transportable.

Features Benefits

Data Memory – The main body can hold data for 30 people (60 eyes). Measurement data can be printed out later.
Compact Station – Even the docking station is compact. The footprint is only 249mm(W) x 220mm(D), allowing it to be used on a refraction table.
Auto Shot Function – Auto measurement starts when the eye is in the optimal position.
90° Correction Function – When measuring the eyes of a patient lying on a couch, the astigmatic axis is corrected by 90°.

Technical Specification

Measurement of Refractive Power
Spherical Power	Measurable Range -20.00~+22.00D (V.D.=12mm) Indication Step 0.12D / 0.25D
Cylindrical Power	Measurable Range 0D~±12.00D Indication Step 0.12D / 0.25D
Cylinder Axis	Measurable Range 0~180° Indication Step 1° / 5°
Min.Pupil Diameter Measurable	Ø2.6mm
Measurement Of Corneal Curvature
Radius of Corneal Curvature	Measurable Range 5.00mm~13.00mm Indication Step 0.01mm
Corneal Refractive Power	Measurable Range 25.96D~67.50D (n=1.3375) Indication Step 0.12D / 0.25D
Corneal Cylindrical Power	Measurable Range 0D~±12.00D Indication Step 0.12D / 0.25D
Corneal Cylinder Axis	Measurable Range 0~180° Indication Step 1° / 5°
KM Measurable Area	3.3mm dia.on Cornea (for corneal curvature radius of 7.7mm)
Measuring time	Measurement of Refractive Power 0.2 sec Measurement of Corneal Curvature 0.1 sec Continuous Measurement 0.2sec
Chart	Scenery Chart
Observation & Indications	2.5 inch colour LCD monitor
Station Unit
Printer	Thermal Line Printer
Interface	RS-232C
Power source	AC100-120V±10% / AC200-240V±10% 50VA 50/60Hz
Dimensions	Station Alone 249(W) X 220(D) X 102(H) mm / 2.5kg Station & Measuring unit 284(W) X 220(D) X 216(H) mm / 3.5kg
Standard Accessories	Spare fuses, Spare printer paper, Dust cover, Power Chord, Battery, Interface Cable, Hand Strap
Optional Accessories	Carrying case with portable stand, IC Card system, Neck Strap, Battery, Carrying Case.

Product Code EQ0207