Welch Allyn 93400 COMPAC SET - User Manual - Manual (Page 5)

Ophthalmoscope
(with both CompacSet Portable Sets)
Ophthalmoscope Features
• Rubber brow rest.
• Aperture selection dial with con-
tinuous rotation: Allows access to
microspot, small, large, fixation,
slit and cobalt blue.
• Two-position filter switch: Engage
either open or red-free filter.
• Larger spot size for wider field
of view.
• Sealed optics.
• Lens selection dial: When used with
multiplier, allows single diopter
steps through 48 lens combinations
(from +22 to -25 diopters).
• Diopter display window: Displays
direct reading of diopter values
(positive values displayed in green;
negative values displayed in red).
Ophthalmoscope Lens Instructions
To move through the range on the plus (+) side:
Rotate lens selection dial clockwise. At +6 diopters
move lens dial clockwise again. Then move multiplier
lever to “+” position. Continue moving lens dial in
same clockwise direction to access +7 through +22
diopters. To move through the range on the nega-
tive (-) side: Rotate lens selection dial counterclock-
wise. At -9 diopters move lens dial counterclockwise
again. Then move multiplier lever to “ - ” position.
Continue moving lens dial in same counterclockwise
direction to access -10 to -25 diopters.
5
13010
Rubber
brow rest
Lens
multiplier
Lens
selection
dial
Diopter
display
window
Filter
Aperture
selection
dial
Two-Position
Filter switch
13010
WAM600-9407-CompSet 12/7/01 10:58 AM Page 5