Installation Instructions:
Swing Mounted Lights
B
D
S
-2532
Bel-Halo Light
/BDS Series
1
Installation Time: Approximately 2 hours
Shipping Packages:
3 Boxes:
1- Swing Arm Assembly
1- Umbilical & J-Box Components
1- AL-920X Light with curved post, Transformer and Sensor/Switch Box
Tools Needed:
Hex key wrench set or socket drive set
Adjustable wrench
Phillips head screwdriver
Bubble Level
Masking Tape
1. Open large shipping carton that contains the Swing Arm Assembly. This package contains a smaller
box where the Swing Mount Bracket and Mounting Hardware are located.
Remove Swing Mount Bracket and bag of hardware.
2. Locate and install (4) 4mm x10 mm screws into the bottom side of the Swing
Mount Bracket using a Phillips screwdriver, as shown below. This step clears excess paint from
threaded holes.
Bel-20/Bel-20+/Bel-20N/Bel-50 Swing Mount Bracket
(bottom side)
Installation Instructions 9-19-13
Model BDS-2532
Bel-Halo Swing-Mount Light
2
3. Attach the Chair Mounting Plate to Bel-20, Bel-20+, Bel-20N or Bel-50 chair using hardware
provided.
The Chair Mounting Plate is attached on the top of the gray chair casting extension as shown below.
Attach Plate to chair using a 10 mm hex key wrench to tighten the (3) 12mm x 55 mm socket bolts
with 12mm spring washers.
4. Attaching the Swing Arm Assembly
Remove Swing Arm Assembly from shipping package and place Rotation Plate on the top side of
the Swing Mounting Bracket.
IMPORTANT! :
Reset lower chair limit position after attaching the Swing Arm Assembly to the chair.
Damage to J-Box, chair base & lift arm covers and swing arm can result from
improperly set lower limit position.
Please refer to chair manufacturer’s instructions for setting lower limit of travel.
Attached mounting bracket, shown from
below.
Note (4) 4mm x 10mm Phillips screw heads
face down. (These are used for mounting
sensor/switch box for Bel-Halo & Clesta lights )
Chair Mounting Plate is attached on top of the
gray extension casting with M12 bolts on Bel-20,
Bel-20+, B-20N & Bel-50 Chairs
3
Use an 8 mm hex key wrench to partially tighten Swing Arm Assembly to Swing Mounting
Bracket as follows:
a) Add (2) 10mm x 40mm socket bolts with spring washers to front recessed holes on Swing Arm
Rotation Plate and partially tighten to support Swing Arm Assembly.
b) Place the Bracket for Umbilical Hose on top of the Swing Arm Rotation Plate and align the holes
as show in photos below, then add remaining (2) 10mm x 40mm socket bolts with 10mm spring
washers and 10 mm flat washers into the slotted end of the Rotation Bracket.
c) Use an 8 mm hex key wrench to partially tighten assembly.
5. Swing Arm Leveling
a) Using an 8mm hex key wrench, add (1)M10 x 35 through hole in Umbilical Mounting Bracket
(as shown above, at right) and (3) M10 x 20 Leveling Set Screws to the top of Rotation Plate.
b) Place a bubble level on top of the flat surface of the Rotation Plate and check Swing Arm
Assembly leveling. Adjust the Leveling Set Screws for rough leveling, as indicated by
bubble level.
c) Gradually tighten (4)M10 x 40 Socket Bolts to secure Rotation Adapter to Swing Mounting
Bracket, making adjustments to Leveling Set Screws, as necessary.
NOTE:
Final leveling of Swing Arm Assembly should be repeated and adjusted after
Light Assembly has been attached to the Light Swing Arm Assembly.
Bracket for Umbilical Hose is secured using socket bolt with
spring washer and flat washer. Note: M10 x 20 leveling set
screws & M10 x 35 leveling set screw with nut shown.
Adjusting (4) set screws for leveling
of Swing Arm Assembly with 8 mm hex
key wrench and bubble level
Insert long (35mm) leveling set screw with locking nut
through hole in Umbilical Mounting Bracket, as
shown above. Nut should be tightened after final
leveling of swing arms & unit.
4
6. Assembling Bel-Halo Light components
a) Unpack Upper Curved Light Post and Bel-Halo AL-920X light from light box.
b) Locate Lower umbilical Wire Harness and set aside for installation into
umbilical duct hose in a later step.
c) Loosen the flexible ribbon pull wire on Upper Curved Light Post, but do not remove it.
Remove accessory bag taped to Upper Curved Light Post. Bag contains Brass Friction Discs,
Set Screws and Hex key wrench.
d) Remove white plastic Washer from bottom of Curved Light Post.
Insert Washer over mounting stud on Light Swing Arm.
e) Remove Bel-Halo light and Balance Arm Assembly from box.
f) Unpack the transformer and sensor switchbox from the AL-920X shipping carton and set
aside for steps 10 and 11.
g) Remove the protective clear plastic tube from the end of the light wire harness.
h) Remove bag taped to end of Light Balance Arm Assembly with (2) 5mm x 15mm
painted cap screws.
Remove clear plastic tube from
connectors, bag with screws
and bag with spare bulb and
adjustment tool.
Slip washer onto mounting
stud.
7. Assembling AL-920X light to Upper Curved Light Post
Tape wire harness connectors
shown with a single tape wrap
in a loose helix.
b) Fasten the end of the flexible pull wire on the end of the Upper Light Post that has (2) holes
on top to the light wire harness, and GENTLY pull wire harness and connectors out through
the bottom of the post. Use care, as excessive pulling may yank the connectors from the wires.
a) Remove the clear plastic sleeve from the end of the light wire harness and wrap the wire
connectors (sparingly) with a single wrap of masking tape (as shown below) for insertion
into the post mounting stud on the top of the light swing arm.
DO NOT OVERWRAP the end of the wire harness with tape or connectors will not fit through
mounting stud.
Gently pull wire harness
connectors and wire harness
from the bottom of the light post
Taped wire harness is wrapped
with (blue) flexible ribbon wire
and pulled through top end of
Upper Curved Light Post.
Note: Top of light post has 2
Thru holes as shown above.
CAUTION!
Alternately feed wire harness into top of light post, while gently pulling ribbon wire
from the opposite (bottom) end.
Electrical connections and wiring can be damaged if wire harness is pulled with
excessive force.
5
6
c) Insert casting end of AL-920X light Balance Arm Assembly into the Curved Light Post.
d) Using a 3 mm hex key wrench, fasten assembly together using the (2) 5mm x 15mm painted
e) Use the chair foot control to lower the chair base for installation of Bel-Halo Curved Post
Light Assembly onto Light Swing Arm.
f) Fold light Balance Arm toward the Curved Light Post and lift Bel-Halo light.
g) Take the end of flexible ribbon pull wire and feed through the mounting stud on the Light
Swing Arm.
Insert Light Balance Arm into Upper Curved Post.
Note: Align through-holes in light post with
threaded holes in balance arm prior to insertion. Tighten cap screws to fasten Light Balance arm to Upper Curved
h) Carefully feed wire harness connectors through the mounting stud and gently pull flexible
ribbon wire and wire downward through the Light Swing Arm.
i) Mount the Bel-Halo light post assembly onto the Light Swing Arm mounting stud.
j) Insert brass friction discs and set screws into the 3 holes around the lower portion of the upper
light post using the hex key wrench provided. Tighten set screws only enough to apply friction
to minimize drifting of light.
CAUTION!
Alternately feed wire harness through Swing Arm, while gently pulling ribbon wire
from the opposite end. Electrical connections and wiring can be damaged if wire
harness is pulled with excessive force.
Carefully insert wrapped connectors
into the mounting stud on top of the
Light Swing Arm.
cap screws.
7
k) Re-check the leveling of the Unit/Light Swing Arm Assembly.
Re-adjust as necessary.
IMPORTANT!
Do Not Over-Tighten Set Screws.
Over-tightening will strip the threads inside the Curved Light Post.
Insert brass discs and set screws to minimize
drifting of light.
Do not over-tighten screws!
a) Place the Transformer/Power Supply on the floor, within the J-Box frame.
The Transformer has a power cord with a molded 3-prong grounded plug,
an attached wire harness with a single multi-wire connector for attachment to
the lower umbilical wire harness and a brown 1/8” OD tube.
(This is an air supply tube for activating the transformer via air/electric relay).
b) Remove the access cover from the Switch Box by unscrewing the two phillips
retaining screws on each side side of the cover.
a) Feed the lower umbilical wire harness from the shipping carton and feed it through the
Umbilical Duct Hose assembly. The lower end of the wire harness has a single
multi-wire connector for attachment to the transformer that will be placed inside of the J-Box.
This connector will extend from the lower end of the umbilical duct hose assembly.
b) Clip the upper end of the umbilical duct hose assembly into the umbilical retaining bracket
attached to the rotation bracket of the light swing arm assembly. The upper end of
the wire harness extends from the top of the umbilical for connection to light wire harness
and to the PC board inside of the Sensor Switch Box.
8. Installing the Umbilical Wire Harness
9. Transformer and Sensor Switch Box
10. Connecting the Lower (Umbilical)Wire Harnesses
Attach the connectors (3) connectors from the lower wire harness as follows:
a) 4 Position connector with Green, Blue, Purple and Gray wires to 4 Position connector with
Black, White, Pink and Gray wires attached to the Sensor Switch Box switch & PCB
b) 2 Position connector with Red and Yellow wires to 2 Position connector with Black/White
and Brown/White wires from the light balance arm.
c) 2 Position connector with Brown and Orange wires to 2 Position connector with Black and
Brown wires from the light balance arm.
d) Connect the Transformer 8 Position wire harness connector to the 8 Position connector on the
bottom end of the of the lower wire harness
Box PCB as follows:
Attach the connectors (3) connectors from the light wire harness to the Sensor Switch
a) 3 Position connector with Orange and Red wires to the 3 Position connector on
the PCB labeled CN9
b) 3 Position connector with Yellow, Green and Blue wires to the 3 Position connector
on the PCB labeled CN4
c) 2 Position connector with Purple and Gray wires to 2 Position connector on the PCB labeled CN5
11. Connecting the Light Wire Harness to the Sensor Switch Box
(SEE WIRING DIAGRAM ON NEXT PAGE)
(SEE WIRING DIAGRAM ON NEXT PAGE)
8
3-5. Swing Mount (AL-920X)
2
1
3
4
1A08AJ**
1A08CH**
XA2P
XA8P
1
2
3
4
1A08CE**
Trunk line for fuse-air sw (L)
(920X)
CADQ74**
1A08CG**
1A04D6**
1A07X8**
5
9
CN9
JST
NH3P
4
10KB
3
1
3
1
2
SW2
1
SENSOR
MANUAL
6
L
N
SW1
PC
JP3
SW4
2
1
SW3
1
2
3
4
OFF
ON
ON
OFF
OFF
OFF
OFF
8
7
6
5
SW3
XA3P
XA4P
1
2
2
1
CN1
JST
EH3P
3
1
2
4
3
2
1
3
2
1
CN2
JST
XA2P
1
2
CN5
JST
XH4P
CN4
JST
XA3P
2
1
3
4
2
1
3
3
1
2
4
CN1
JST
XH3P
CN6
JST
NH2P
CN201
JST
XH4P
CN202
JST
XH2P
CN204
JST
NH2P
CN101
JST
VH3P
4
2
1
33
1
2
1 2 32 1
OFF PC
1A089U**
1A07M9**
1A07MB**
1A07MA**
1A089T**
1
2
2
1
5
6
7
8
XA4P
1
2
3
4
1A089V**
OFF
Trunk line for fuse-air sw (N)
(920X)
1A08CF**
1G027U**
LED Module Assy.
SM2P(Black)
SM2P(Black)
LED module 1
LED module 2
Black
Black/White
Brown
Brown/White
Sensor power input
Sensor output
GND
Yellow
Green
Blue
LED Sensor PCB.
(1G0280**)
Head Section
York Section
Red
Orange
(VR) Intensity
Adjustment
Intensity adjustment
Volume Section
CN1
JST
PH4P
Display LED PCB.(DL-900)
DC5V output
VR input
(1G027Z**)
DC5V power input 1
Display LED input
Red
Orange
Gray
Purple
VR output
DC5V power input 2
Trunk line for LED sensor PCB
Yellow
Green
Blue
Yellow
Green
Blue
Black
Black/White
Brown
Brown/White
Black
Black/White
Brown
Brown/White
Trunk line for LED module(Head)
Yellow
Green
Blue
Gray
Purple
Red
Orange
Sensor power
output
Sensor input
DC5V power output 2
Display LED output
DC5V power
output 1
VR input
GND
Power LED
Sensor Signal LED
LED2:Yellow
LED1:Green
Manual SW for
operation test
VR lower limit
setting
LED Light Control PCB.
(1G02A0**)
PWM output
DC5V
Power input
+-
White
Black
Light Blue
Pink
Bright Green
Black
White
Green
Blue
Purple
Gray
Bright Green
Pink
Light Blue
Lead wire line for S/M select sw
(with sw.)
Ferrite
Four turns
Inside arm lead wire
(AL-920X)
LED output A1
LED output A2
LED output K1
LED output K2
Black
Black/White
Brown
Brown/White
Brown
Red
Orange
Yellow
Green
Blue
Purple
Gray
Brown
Red
Orange
Yellow
Green
Blue
Purple
Gray
Power PCB. signal line
(AL-920X)
LED Light Power PCB.
(DL-900)
(1G028U**)
Light Blue
Brown
Green/Yellow
2-Fuse
250V/0.8A(T)
Remarks
Connector Symbol
SM ... SM Connector
XA ... XA Connector
XM ... XM Connector
Plug
The side with black dot
has male pins
Receptacle
Black dot
Brown
Blue
Brown
Air Switch
Blue Blue
Brown
AC120V
Power Input
Noise filter section
(AL-905)
Green/Yellow
Earth line (701M)
Power supply cable 1000L
Earth line for power PCB.
Green
Trunk line for
air sw - power pcb.
DC5V
Power output
+
-
GND
PWM input
Trunk line for AL-920X
(inside duct hose)
Switch box Section
Power supply box Section
Setting condition
Transition time to Composite mode (by a sensor)
Combining dental unit
Settings of PCB dip switches ( SW3,4) and jumper pin (JP3).
Test mode ( Always OFF)
Default
setting
Setting condition
Sensor activation setting
6 Includes Composite Mode
Speed setting of communication line
LED blink setting of Composite Mode
PC side: Clair Unit, 232 side: CP-One plus
PC side: Clair Unit, 232 side: CP-One plus
Default
setting
On : 1. Regular Mode when a light is turned on by using a sensor.
2
1
XA2P
2
1
Brown
Red
Yellow
Orange
AL-920X Bel-Halo LED Light
Switch Box
Power Supply/ Transformer
Light Head
Yoke Section
Umbilical Wire Harness
(Inside Duct Hose)
1A089V**
Slip the Upper and Lower wire harnesses through the rectangular hole on the side
of the Switch Box housing.
Bundle all wires within the Switch Box enclosure and re-attach the cover using the two
Phillips screws.
b) Mount the Switch Box on the underside of the chair mounting plate using the four
M4 x 10 Phillips Head screws inserted in step 1.
c) Retain the Lower wire harnesses to the rotation shaft on the Rotation Bracket using
the plastic C clamps located on top and bottom of the Swing arm pivot.
13. Finishing Up
Plug the Transformer into a 120 VAC outlet and verify that light is functioning
correctly.
10
12. Connecting the Light Wire Harness to the Sensor Switch Box
a) Secure the wire harness from the light inside of the Sensor Switch Box with the built-in
strain relief clamp.
BELMONT EQUIPMENT
101 Belmont Drive
Somerset, NJ 08873-1204
Phone: (800) 223-1192 • Fax: (732) 356-1035
www.belmontequip.com
IBDS2532
REV091913
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