Refurbished RFK-920 Auto-Refractor Keratometer

Vertex Distance (VD): 0.0, 12.0, 13.75, 15.0

SPH: -30.00D～+25.00D (VD=12mm, 0.01, 0.06, 0.12, 0.25 Unit)

CYL: 0.00D～±10.00D (0.06, 0.12, 0.25 Unit)

Axis(AX): 1°～180° (1° Unit)

Cylinder Form: -, +, ±

Pupil Distance(PD): 10～86mm Minimum

Pupil Diameter: 2.0mm

Measuring Time: ∠0.5s

Pupil Diameter: 2.00～8.00mm

Measuring Light Energy: ∠30uw (Insure measuring safety)

Radius of Curvature: 5.0～10.0mm (0.01mm Unit)

Corneal Power: 33.00D～67.00D, (In case that the corneal equivalent refractive power is 1.3375)

Corneal Astigmatism: 0.00D～-15.00D(0.06D/0.12D/0.25D Unit)

Data Storing: Each 10 measured values of left eyes and right eyes

Axis: 1°～180°

Chart: Auto fog

Monitor: SHARP 7″ TFT LCD touch screen (Angle of view adjustable)

Built-in Printer: 57mm thermal printer, auto paper-cutting

Electrical Power: AC 100～250V, 50/60Hz

G.W.: 52Lbs.

Dimensions (packing): (L)29"X(W)16"X(H)25"

Warranty: 1 year

Optical system; unique imaging impression 

Hartman imaging analyzing and processing technology, accurate measurement result can move front and back freely 

Bright 7" TFT tilt screen

Motorized chin rest 

Auto paper-cutting printer

7.1 L/R Sign: Flashing sign indicates the current measured eye
7.2 The number of power/corneal parameters measured
7.3 Step selection (shortcut key)
7.4 Astigmatism symbol selection (shortcut key)
7.5 VD selection (shortcut key)
7.6 PD value display
7.7 Power display
7.8 Corneal value display
7.9 Adult//child mode selection
7.10 Measurement mode selection
7.11 Auto/manual measurement selection (partial model)
7.12 Auto/manual tracking and focusing selection (partial model)
7.13 Data clear key
7.14 Data record check
7.15 Menu set
7.16 Pupil alignment target
7.17 Left/right eye pupil diameter

AUTO: When ON selected, the measurement results will be printed out automatically after the both eyes measurement finished (in this case, the datais cleared automatically) When OFF selected, press the print key on panel to print out the measurement results.

REFRACTOMETRY : When OFF selected, the refractometry power won’t be printed out. When STD selected, all refractometry power will be printed out. When AVG selected, only print the average value of the refractomertry power.

KERATOMETRY: When OFF selected, the keratome try power won’t be printed out. When STD selected, all keratome try power will be printed out. When AVG selected, only print the average value of the keratometry power.
EYE:When ON or OFF selected, the refractometry state diagram will be printed or not. CONCENTRATION: Set the appropriate print concentration according to different thermal printing paper.

PUPIL:When ON or OFF selected, the pupil diameter will be printed or not.

SE: When ON or OFF selected, SE data (the approximate value of cylinder power converted in to sphere power)will be printed or not. BC:When ON or OFF selected, BC(base curve of corneal contact lens)will be printed or not.

1.) Pull outwards the printer cover,open the cover
2.) Place the new printer paper in the box,keep the paper head upwards
3.) Draw the paper outwardsand directly ride on the printer wheel
4.) Push the cover back and close the cover