Welch Allyn 48700 Instruction Manual

Operating
Instruction
Manual
488068 Rev. B
Halogen Exam Light III with
Fiberoptic Light Pipe
Model #’s - 48700, 48722, 48724, 48726, 48728
Halogen Exam Light III with
Fiberoptic Light Cable
Model #’s - 48780, 48782, 48784, 48786, 48788
Halogen Exam Light III with
Neonate Light Pipe
Model #’s - 48760, 48762, 48764, 48766, 48768
Halogen Exam Light III Light Box
with Power Cord
Model #’s - 48740, 48742, 48744, 48746, 48748
Exam/Procedure Light
Service Manual

Thank you for purchasing the Welch Allyn Halogen Exam Light III. The
Exam Light III is a positional light source which can be used for topical
examinations of the skin and vaginal area. We believe that it is the highest
quality product of its kind available in the world today. By following the
simple guidelines found within this manual, you should be rewarded with
years of dependable, trouble free performance. If you have any
questions or concerns please feel free to contact our customer or
technical service departments at [phone] during normal business
hours.
Welch Allyn remains committed to providing innovative, quality diagnostic
products for healthcare professionals. Call us at [phone] to
request a full line product catalog or visit us at our Web Site,
www.WelchAllyn.com.

Table of Contents
SYMBOL DESCRIPTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . 1
WARNINGS AND PRECAUTIONS . . . . . . . . . . . . . . . . . . . . 2
COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
MOUNTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Wall Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Mobile Stand . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
SET-UP AND OPERATION . . . . . . . . . . . . . . . . . . . . . . . . 12
Set Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Operation Of Light Pipe . . . . . . . . . . . . . . . . . . . . . 13
Operation of Focusing Sleeve . . . . . . . . . . . . . . . . 13
LAMP REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
FUSE REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
CLEANING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Focusing Sleeve . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Fiberoptic Light Pipe, Light Cable,
Neonate Light Pipe . . . . . . . . . . . . . . . . . . . . . . 17
Light Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Electrical . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Power Cord . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Physical Characteristics . . . . . . . . . . . . . . . . . . . . . 19
Environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Equipment Classification . . . . . . . . . . . . . . . . . . . . 19
Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
MAINTENANCE AND REPAIR . . . . . . . . . . . . . . . . . . . . . 22
WARRANTY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

1
SYMBOL DESCRIPTIONS
Attention: Consult user’s manual for additional
information.
Warning: Risk of fire. Replace fuses as marked.
Caution: High Temperatures
Caution: High Intensity Light

2
WARNINGS AND PRECAUTIONS
WARNING: The user of this equipment should be
thoroughly trained in the medical procedures appropriate
to the utilization of this instrumentation. Furthermore,
time should be taken to read and understand the
instructions contained within this manual prior to use of
this product. Instructions for other equipment used in
conjunction with the Exam Light III (for example: suction
machines, electrosurgical generators, etc.) should also be
read and understood. Failure to understand the operating
requirements for this product may result in injury to
yourself, the patient and/or may damage the instrument.
CAUTION: Electric Shock Hazard - Remove power cord
from electrical outlet and allow lamp to cool before
replacing (Welch Allyn lamp # 04200).
DANGER: Risk of explosion if used in the presence of
flammable anesthetics.
CAUTION: Federal Law restricts this device to sale by or
on the order of a physician.
CAUTION: Illumination is intense - Do not stare at the
light source in operation. May be harmful to eyes.
CAUTION: Use the examination light in its intended
working range of 12 to 24 inches. Exposures at closer
distances may be harmful to skin.

3
WARNING: Do not perform neonatal trans-illumination
without the use of the #48210 neonatal trans-illuminator
(with U.V. filter). Do not remove the focusing sleeve from
the light pipe and use the light pipe for trans-illumination.
Severe burns may result.
General practices to minimize risk of harm to
the skin from optical radiation hazards include:
minimizing illumination intensity at the tissue
examination site, minimizing exposure times,
and taking additional precautions when skin
sensitivity has been altered through tissue
trauma or the use of anesthesia.
General good practices to minimize risk of harm
to the eyes from optical radiation hazards
include: avoid looking at bright light sources and
their reflections, and protect eyes where normal
pupil sizes and aversion responses are not
present.
There are no user serviceable/replaceable parts other
than lamp and fuses. Please refer any other service to
qualified and authorized service centers.

4
COMPONENTS
Standard
Light Box, Power Cord and Wall Mount
Model 48740 (Domestic)
Model 48742 (Europe)
Model 48744 (UK)
Model 48746 (Australia)
Model 48748 (Japan)
Fiberoptic Light Pipe (shown with focusing
sleeve)
Model 48200
(Included only with Model #’s 48700, 48722, 48724,
48726, and 48728)
Fiberoptic Light Cable (shown with focusing
sleeve)
Model 48220
(Included only with Model #’s 48780, 48782, 48784,
48786, and 48788)
Neonatal Transilluminator
Model 48210
(Included only with Model #’s 48760, 48762, 48764,
48766, and 48768)
Focusing Sleeve
Model 48605
(Included only with Model #’s 48700, 48722, 48724,
48726, 48728, 48780, 48782, 48784, 48786, and
48788)

5
Accessories
Fiberoptic Light Pipe (Shown with Focusing
Sleeve)
Model 48200
Fiberoptic Light Cable (Shown with Focusing
Sleeve)
Model 48220
Focusing Sleeve
Model 48605
Neonatal Transilluminator
Model 48210
The optional neonatal Light Pipe/transilluminator is used to
assist in the diagnosis of pneumothorax, to locate blood
vessels, etc. This transilluminator incorporates a
permanently attached ultraviolet filter that minimizes the
transmission of ultraviolet light. This prevents skin
temperatures from rising in excess of 39°F (4°C) when in
contact with the skin for five minutes or longer. The
standard light pipe should NOT be used for
transillumination of neonates.

6
Accessories (cont’d)
Table Mount Bracket
Model 48859
Mobile Stand
Model 48850
Disposable Sheaths
Model 52640
Disposable Sheath Dispenser
Model 52641
35W Halogen Replacement Lamp
Model 04200

7
MOUNTING
Use one of the following three mounting options in order to
ensure proper operation of the light box.
Wall Mount
Choose appropriate mounting location. The length of the light pipe
is 4 feet totally extended (fiberoptic light cable is 7.5 feet). When
choosing a mounting location, keep these dimensions in mind in
addition to accounting for the actual application the light will be
used for and what portion of the examination table will need to be
accessed.
1. Using the mounting plate as a template, mark drilling holes as
needed (depending on your wall type).
•Dry Wall, Paneling, Plywood or Plaster
(1/8 inch (.3 cm) to 5/8 inch (1.6 cm)
thick) - drill four (4) 3/8 inch (1cm) holes,
insert hollow metal wall anchor
assembly.
•Concrete Block - drill four (4) 3/16 inch
(5 cm) holes, insert plastic anchors.
Use #8 x 1/2 inch screws to secure.
•Metal Panel or Plywood walls greater
than 5/8 inch (1.60 cm) thick - drill four
(4) 1/8 inch (.3 cm) holes. Use #8 x 1
inch screws to secure.
2. Once holes are drilled, install the mounting plate with the
appropriate screws. Completely tighten the screw so there is
no gap between the screw head and the mounting plate.

8
3. Mount the Light Box to the plate by inserting the pins on the
back of the light box into the slots on the mounting plate. Let
the light box drop down to position the pins into the narrow
portion of the mounting slots !
!!
!.
4. To secure the Light Box to the plate, insert two (2) .50”
(1.27cm) screws through the bottom of the mounting plate and
tighten into the bottom of the Light Box using a phillips head
screwdriver "
""
".
!
!!
!
"
""
"

9
Table Mount
(Model #48859)
NOTE: Some exam table manufacturers supply mounting
hardware for installation of the Exam Light III. Check with your
table supplier for availability.
1. Determine the side of the table that will be most optimal for
mounting the light. Consideration should be taken as to the
location of the nearest power outlet and patient traffic.
NOTE: Be sure that the mounting location is at least 10 inches
(25.4 cm) below the table top cushion, and that the mounting
position will not interfere with the operation of the table.
2. Trace the outline of the mounting plate and mark the hole
locations on a 1 inch (2.5cm) thick piece of plywood.
3. Cut the piece of wood to the outline size and drill four .25 inch
(.64cm) holes.
4. Using the mounting plate as a template, mark the hole
locations on the table and drill (4) .25 inch (.64 cm) holes in the
table.
5. Using four 8-32 x 2 inch (5.08 cm) screws with lock washers
and nuts, install the block of wood and mounting plate to the
table as shown in the diagram.
6. To secure the Light Box to the mounting plate, insert two (2)
.50”(1.27cm) screws through the bottom of the mounting
plate and tighten into the bottom of the Light Box using a
phillips head screwdriver.

10
Mobile Stand
(Model # 48850)
Caster/Base Assembly Instructions
!
!!
!:
Push casters into the holes of the
base until they “snap”into place.
Alternate casters as shown.
Base/Column Assembly
Instructions "
""
":
1. Insert column into center hole of
base.
2. Insert .25 inch (.64 cm) lock washer, .75 inch (1.9 cm) flat
washer and 1 1/4”(3.2 cm) socket head bolt into center hole.
Tighten socket head bolt with hex socket wrench.
Locking Caster
Locking
Caster
Base
!
!!
!
Hex Socket Wrench
(Allen Wrench)
Socket Head Bolt
.25 inch (.64 cm)
Lock Washer
.75 inch (1.9 cm)
Flat Washer
Base
Column
Mounting Plate
"
""
"

11
Exam Light/Mounting Plate Instructions #
##
#:
1. Place the keyhole pins on the back of the Exam Light into the
slots on the top of the mounting plate and slide down.
2. Line up the screw holes on the bottom of the Exam Light with
the screw holes on the mounting plate.
3. Insert the .50 inch (1.27 cm) screws through the bottom of the
mounting plate and tighten with a phillips head screw driver
(not included).
.50 inch (1.27 cm) mounting screw
Exam Light
Keyhole Pin in
slot.
#
##
#

12
SET-UP AND OPERATION
Set Up
1. Secure the Light Box to one of the mounting options per the
appropriate instructions.
2. Insert the Fiberoptic Light Pipe, Fiberoptic Light Cable, or
Neonate Light Pipe into the light pipe receptacle on the top of
the Light Box.
3. Plug the power cord into the base of the Light Box and the
remaining end into a grounded AC outlet.
4. Toggle the light switch to the “ON”position to operate.
NOTE: Remember that the Fiberoptic Light Pipe, Fiberoptic Light
Cable, and Neonate Light Pipe contain several thousand individual
optical fibers, therefore appropriate handling is required to ensure
long fiber life. Do not bend the flexible portions of the light pipe at
acute angles as this will break individual fibers and reduce light
transmission. For example, do not bend the semi-flexible middle
portion of the Fiberoptic Light Pipe more than 180 degrees and do
not bend the proximal and distal sections more than 90 degrees.
Be careful not to pull on the Fiberoptic Light Cable as this may
cause fibers to break.

13
Operation Of Light Pipe
The flexible portions of the Fiberoptic Light Pipe are designed to
be articulated, but not twisted. Twisting or applying torque to the
flexible sections will greatly decrease the life of the Light Pipe.
This type of movement will cause premature drooping of the Light
Pipe (will not stay in place once positioned) and eventually will
result in breakage of the fiberoptic bundle. For best results,
always position the Light Pipe by moving it in the same direction
as gravity. For example, if the pipe needs to be raised, raise it
above the desired position and then lower it into place.
NOTE: Upon manufacture, the Light Pipe is tested to assure
maintenance of positioning and to verify the absence of noise
upon articulation. Over a period of time and use, it is normal for
the Light Pipe positioning capability to reduce and soften
becoming less obedient. Abnormal softening or occurrence of
noise upon articulation should be reported to Welch Allyn
Technical Service (315-685-4560) immediately.
Operation of Focusing Sleeve
The focusing sleeve at the end of the Fiberoptic Light Pipe and
Fiberoptic Light Cable provides adjustment of the illumination spot
size. Twisting the knurled portion of the focusing sleeve in a
clockwise direction will make the spot smaller. Twisting the
knurled portion of the focusing sleeve in a counterclockwise
direction will increase the spot size.

14
LAMP REPLACEMENT
CAUTION: Lamp may be hot. Allow the lamp to cool
before replacing.
1. Turn the unit off and unplug the power cord from both the wall
outlet and the Light Box.
2. Remove the unit from the patient area.
3. Using a screwdriver, loosen the single panel fastener that
protrudes from the bottom of the unit. As the screw is
loosened, there will be a noticeable “drop”as the front cover
is released. !
!!
!
4. Slightly lift the bottom of the front cover toward you and then
slide the cover up to remove it."
""
"
5. For initial lamp replacement only: Grasp wire clip at top of
lamp. Rotate clip toward the base of the unit until it pops out.#
##
#
Discard clip. It was for shipping purposes only.
6. Grasp the lamp connector and pull the lamp straight out of its
holder. $
$$
$
7. Pull the lamp from its connector and replace it with Welch Allyn
Replacement Lamp #04200.%
%%
%
8. Push the lamp back into the holder.
9. Attach the front cover by sliding the tabs at the top of the cover
into the slots at the top of the back housing and then tightening
the screw at the bottom of the unit.
10. Return the unit to the patient area and plug power cord back
into bottom of unit and wall outlet.

15
%
%%
%$
$$
$
#
##
#
"
""
"
!
!!
!

16
FUSE REPLACEMENT
1. Turn the unit off and remove the power cord from both the wall
outlet and the light box.
2. Press the tabs on both ends of the fuse drawer in and pull the
fuse drawer out. !
!!
!
3. Remove and replace new fuses of the same type. There is no
required orientation of the fuses. Be sure to replace both
fuses."
""
"
4. Reinsert the fuse holder by pressing it into the power
connector until it snaps into place.
5. If the new fuses blow, immediately contact Welch Allyn
Technical Service (315-685-4560).
!
!!
!"
""
"
Fuse Tabs