Zeiss Humphrey Systems Acuitus User Manual
PN 50648 Rev A June 2001
21
Instrument Specifications
Refraction Measurement (Objective)
Range Increments
Sphere: -20D to +20D
.12D, .25D
Cylinder:
0 to 7D .12D, .25D
Axis:
0° to 180°
1°
Minimum Pupil: 2.5 mm
Vertex Distance: 0.0, 10.5, 12.0, 13.5, 15.0, 16.5 mm
Corneal Curvature (Keratometry) Measurement (Model 5010 and 5015)
Range: 30.00 to 60.00D 12D or .25D Increments
5.60 mm to 11.20 mm
.01 mm Increments
Axis:
0° to 180°
(1° increments)
Central Keratometry:
At visual axis
Base Leg Central:
2.6mm for 43.50 dK cornea
Peripheral Keratometry: 25° off visual axis
Superior, Inferior, Nasal, Temporal
Base Leg Peripheral:
6.8 mm for 43.50 dK cornea
Charts
Fixation Target: Infinity color scene
Physical Dimensions
Height: 20" (513 mm) • Width: 10" (256 mm) • Depth: 15" (385 mm) • Weight: 46 lb (21 kg)
Operator Interface Output
Color LCD
Paper Size: 60 mm thermal paper, standard or with adhesive back (label)
Operator Interface Input
• On-screen icons keyed to soft key buttons
• Four hard keys
Hardware Interface
• ANSI Software Protocol: ANSI Z80.26–1996
• Two RS-232 serial communication ports (inactive)
• Keyboard plug (inactive)
Operating Conditions Transport and Storage Conditions
+10 °C to 40 °C (50 °F to 104 °F) -40 °C to + 70 °C ambient temperature
30% to 75% relative humidity
10% to 100% relative humidity
700 hPa to 1060 hPa atmospheric pressure 500 hPa to 1060 hPa atmospheric pressure
Electrical
Line Voltage:
115V/230V˜
Frequency:
50 – 60 Hz single phase
Current: 2A @ 115V, 1A @ 230V
Fuse Rating:
T2.0, 250V, 5 x 20mm
Leakage Current: Less than 0.5mA
Certifications
MDD, UL 2601-1, CSA-601.1
