Nidek ARK-1A Autorefractor & Keratometer

Features:

Accurate Refraction Measurement

Easy VA Measurement with glare test

Simple Opacity Assessment With Retroillumination Image

Patient-Friendly Accommodation Measurement

Keratometry Measurement With Mire Ring

Specification:

Objective Spherical Refractive Error                         -30.00 to +25.00 D (VD = 12 mm) (0.01/0.12/0.25 D increments)

Cylindrical Refractive Error                                  0 to ±12.00 D (0.01/0.12/0.25 D increments)

Cylinder Axis                                                                  0 to 180° (1°/5° increments)

Minimum Measurable Pupil Diameter                  ø2 mm

Corneal Curvature Radius                                         5.00 to 13.00 mm (0.01 mm increments)

Corneal Refractive Power                                         25.96 to 67.50 D (n = 1.3375) (0.01/0.12/0.25 D increments)

Corneal Cylindrical Power                                         0 to ±12.00 D (0.01/0.12/0.25 D increments)

Corneal Cylinder Axis                                                 0 to 180° (1°/5° increments)

Pupillary Distance Measurement                         30 to 85 mm (1 mm increments)

Corneal Size Measurement                                 10.0 to 14.0 mm (0.1 mm increments)

Pupil Size Measurement                                         1.0 to 10.0 mm (0.1 mm increments)

Accommodation Measurement                         0 to 10.00 D (0.01/0.12/0.25 D increments)

Observation/Display Method                                 6.5-inch color LCD

Printer                                                                         Thermal line printer with auto cutter

Interface Connectors                                                 RS-232C: Two ports USB: One port LAN: One port

Power

Power Supply         AC 100 to 240 V ±10% 50/60 Hz

Power Consumption 100 VA

Dimensions

Measurements 260 (W) mm

                                495 (D) mm

                                457 (H) mm

Mass                20 kg