Symbols
For information on the origin of these symbols, visit http://www.welchallyn.com/
symbolsglossary for the Welch Allyn symbols glossary.
Documentation symbols
Consult directions for use (DFU). A copy
of the DFU is available on this website. A
printed copy of the DFU can be ordered
from Welch Allyn for delivery within 7
calendar days.
WARNING The warning statements in
this manual identify conditions or
practices that could lead to illness, injury,
or death.
Caution The caution statements in this
manual identify conditions or practices
that could result in damage to the
equipment or other property, or loss of
data. This definition applies to both
yellow and black and white symbols.
Power symbols
Rated power input, DC
Rechargeable battery
Power on/off USB
DC power input port, Center pin positive
Miscellaneous symbols
IPXO
Not protected against the ingress of
water.
Non-ionizing electromagnetic radiation
Manufacturer
Reorder Number
Product Identifier Serial Number
Authorized Representative in the
European Community
Global Trade Item Number
2 Introduction Welch Allyn
®
Spot
™
Vision Screener Model VS100