Welch Allyn Spot VS100 - Page 48

Item Specification
Avg. Efficiency: 81-87% @ 0-50 W, ≥ 87% @ >51 to 250
Infrared radiation (light)
850 nm, <2mw/cm
2
Vision Screener specifications
Item Specification
Dimensions (cm/in): 21.6 cm x 17.1 cm x 12.1 cm (8 ½ in. x 6 ¾ in. x 4 ¾ in.)
Weight (lbs.): ~2.55
Wireless Network: 802.11 a/b/g/n
Operating Temperatures (°C): +10 to +40
Operating Humidity: 30% to 95% Relative Humidity (non-condensing)
Operating Atmospheric Pressure: 800 hPA to 1060 hPA
Storage/Shipping Temperatures (°C): -10 to +55
Storage/Shipping Humidity: 10% to 95% Relative Humidity (non-condensing)
Storage/Shipping Atmospheric Pressure: 700 hPA to 1060 hPA
Expected Battery Life: 2.5 Years (Under Normal Usage)
Screening capacity
Screening results provide an output that is either in- or out-of-range, accompanied by the
appropriate statement in the device output display (“Screening Complete” or “Complete
Eye Exam Recommended”). The displayed message is intended to prompt the caregiver
to assess whether the subject should be referred to an eye care specialist for further
evaluation or simply be monitored at future screenings.
Refraction
Spherical equivalent:
• Range:
-7.50D to +7.50D in 0.25D increments
• Accuracy:
-3.50D to 3.50D, ± 0.50D
-7.50D to < -3.50D, ± 1.00D
> 3.50D to 7.50D, ± 1.00D
Cylindrical:
• Range:
-3.00D to +3.00D in 0.25D increments
44 Specifications Welch Allyn
®
Spot
™
Vision Screener Model VS100