Hi Scan Touch

Parameter Specifications

Model
Keratron™ Onda model REF 161401

TOPOGRAPHICAL PRECISION

Ophthalmometer Data (sim-K)
within ±0.25D on a normal cornea
BFS (Best Fit Sphere) deviation
typically within ±0.15D

ABERROMETRY

Analysis area on the pupil
7x7 mm std (7.3x7.3 mm max)
Sensor
Microlens Array OPTIKON design
Spatial resolution
128 microns (2350 points in the maximum pupil)
Wavelength SLD
840 nm
Wavelength LEDs
750 nm and 590 nm
Measurement Range
-20D +10D (@VD=14mm) (sphere)
±10D (cylinder)
Defocus compensation
-11D +5D (automatic and manual)
Objective measurement of the patient’s accommodative response
from +1D -4D over the defocus
Zernike polynomials
7th order

ENVIRONMENTAL SPECIFICATIONS

Storage
temp. range between -10°C and 60°C
humidity 0-100% (cond. incl.)
atm pressure from 500 to 1060 hPa
Operation
temp. range from 10°C t o +40°C
humidity 30-75% (non-condensing)
atm pressure from 700 to 1060 hPa

ELECTRICAL SPECIFICATIONS

Input voltage
from 100 to 240 Volts AC
Frequency
50/60 Hz
Current consumption
70 VA
Fuses
2 x T 1 A (5 x 20 mm)
Regulatory compliance
Medical Device Directive 93/42/EEC
Technical standards
EN 60601-1:1998; EN 60601-1-1:2000;EN 60601-1-2:2001+A1:2006;
IEC 60825-1:1993+A1:1997+A2:2001;
EN 60601-1-4:1997+A1:1999