Welch-allyn SureSight Vision Screener - User Manual Uživatelský manuál stáhnout pdf (Strana 12)

Technical Specifications

Technology: Welch Allyn proprietary autorefractor hardware/

algorithm

Working distance: 14 inches (35 cm.)

Distance detection: Automatic, with audible and visual cues

Eyepiece: Illuminated target for easy aiming

Data acquisition time: 2.4s/eye

Data acquisition: Measures and averages 5 to 8 readings/eye

Reliability measure: Indicates number of and variation among

measurements for the given eye

Battery voltage: 7.2v nominal (Lithium Ion)

Battery life: More than 3 hours of continuous usage

Low-Battery warning: Indicates 10 - 15 minutes usage remains

Interfaces: Remove infrared link to thermal printer. RS-232

interface for IBM compatible PC for future software

upgrades/data transfer to electronic medical records.

Stand: Compact charger and SureSight storage

Weight: Approximately 2.0 lbs. (0.9 Kg.)

Dimensions: 6.5” x 7.75” x 2”

Class II equipment: Continuous operation.

Transport/Storage: -20°C~49°C, 10%(100% R.H. Max, 500hPa -

1060hPa Altitude

Operating: 10°C~30°C, 30%(75% R.H. Max, 500hPa - 1060hPa

Altitude

Measurement Range: Sphere: +5.5 to -4 1/2 Diopters

Cylinder: +

3 Diopters

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 35 36

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Welch-allyn SureSight Vision Screener - User Manual Uživatelský manuál Strana 12