Belmont Phot-X II 303 User manual

MODEL 303
DENTAL X-RAY
INSTALLATION
INSTRUCTIONS
(for USA & Canada)
This X-ray equipment may be dangerous to patients and operators
unless safe exposure factors and operating instructions are observed.
WARNING
R
0501(REV.0)

-1-
INDEX PAGE
SECTION 1 : TECHNICAL DATA
[1] ELECTRICALAND RADIATION DATA--------------------------------------------------- 2
[2] PHYSICAL DIMENSIONS-------------------------------------------------------------------- 3
[3] TUBE HEAD THERMAL CHARACTERISTICS ----------------------------------------- 4
SECTION 2 : PRE-INSTALLATION INSTRUCTIONS
[1] SUPPORT REQUIREMENTS ---------------------------------------------------------------- 5
[2] ELECTRICAL REQUIREMENTS ----------------------------------------------------------- 5
[3] LOCATION OF COMPONENTS------------------------------------------------------------- 6
SECTION 3 : INSTALLATION INSTRUCTIONS
[1] INSTALLATION REQUIREMENTS -------------------------------------------------------- 7
[2] UNPACKING ------------------------------------------------------------------------------------ 7
[3] MAIN CONTROLLER AND ARM INSTALLATION ------------------------------------ 8
[4] HEAD ASSEMBLY INSTALLATION------------------------------------------------------ 12
[5] SUB CONTROLLER INSTALLATION ---------------------------------------------------- 14
[6] HAND EXPOSURE SWITCH (OPTION) ------------------------------------------------- 15
SECTION 4 : POST INSTALLATION INSPECTION
[1] ARM ASSEMBLY ----------------------------------------------------------------------------- 16
[2] BALANCE ARM TENSION ADJUSTMENT --------------------------------------------- 16
[3] HEAD POSITIONING ------------------------------------------------------------------------ 16
SECTION 5 : CONTROL IDENTIFICATION AND OPERATION
[1] MAJOR COMPONENTS AND CONTROL IDENTIFICATION----------------------- 17
[2] FUNCTION OF CONTROLS ---------------------------------------------------------------- 18
[3] OPERATING PROCEDURES --------------------------------------------------------------- 20
[4] OPTIONAL HAND EXPOSURE SWITCH------------------------------------------------ 20
[5] ERROR CODES-------------------------------------------------------------------------------- 21
[6] MAINTENANCE ------------------------------------------------------------------------------ 22
SECTION 6 : POST INSTALLATION CONFIRMATION
[1] CONFIRMATION OF POWER SUPPLY VOLTAGE ------------------------------------ 23
[2] CONFIRMATION OF TUBE POTENTIALAND TUBE CURRENT ----------------- 23
[3] CONFIRMATION OF TUBE CURRENT ------------------------------------------------- 23
[4] CONFIRMATION OF EXPOSURE WARNING LAMP & BUZZER ----------------- 24
[5] CONFIRMATION OF LINE VOLTAGE REGULATION ------------------------------- 24
SECTION 7 : INITIAL SETTING
[1] SPEED SETTING FOR FILM AND DIGITAL IMAGING------------------------------ 25
[2] PRIORITY OF SELECTIONS --------------------------------------------------------------- 26
[3] ELECTRONIC CHIME ON/OFF ------------------------------------------------------------ 27
APPENDIX 1 : CIRCUIT DIAGRAM------------------------------------------------------------ 27
APPENDIX 2 : PARTS IDENTIFICATION
[1] ARM AND HEAD ASSEMBLY ------------------------------------------------------------- 28
[2] CONTROLLER ASSEMBLY ---------------------------------------------------------------- 29
APPENDIX 3 : CERTIFICATION----------------------------------------------------------------- 30
This manual provides information and instructions for the installation, assembly calibration and
certification procedures for BELMONT PHOT-X II MODEL 303 dental x-ray.
The instructions contained in this book should be thoroughly read and understood by dealer service
personal before attempting to install the X-ray unit. After installation is completed, owners should
file this manual and refer back to it to schedule periodic maintenance.
CAUTION

-2-
[ 1 ] ELECTRICAL AND RADIATION DATA
1. X-ray tube --------------------------------------------------Toshiba D-0711 (Stationary Anode)
a. Focal spot------------------------------------------------0.7 mm
b. Target Material------------------------------------------ Tungsten
c. Target angle --------------------------------------------- 16˚
d. Maximum anode heat content ------------------------ 7kJ (10kHU)
2. Maximum x-ray tube assembly heat content ---------- 120kJ (170kHU)
3. Rated peak tube potential -------------------------------- 60 kV / 70 kV selectable
4. Rated tube current -----------------------------------------4 mA / 7 mA selectable
5. Maximum rated peak tube potential -------------------- 70 kV
6. Rated line voltage -----------------------------------------120 VAC, 60Hz, Single phase, 1.3 kVA
7. Line voltage range ---------------------------------------- 108 VAC ~ 132 VAC
8. Range of line voltage regulation ------------------------ 2 ~ 5 %
9. Rated line current ----------------------------------------- 10.8 Aat 70 kV, 7 mA
10. Maximum line current ----------------------------------- 12 A at 70 kV, 7 mA
11. Exposure time --------------------------------------------- 0.01 ~ 3.2 sec.
12. Inherent filtration -----------------------------------------1.7 mm Al Equivalent
13. Added filtration -------------------------------------------0.3 mm Al
14. Minimum filtration permanently in useful beam-----2.0 mm Al Equivalent at 70 kV
15. Nominal roentgen output 60 kV 70 kV
4 mA 7 mA 4 mA 7mA
a. Distal end of regular cone ----------------------------- 5.4 9.4 7.1 12.4 mGy/sec. ±40%
b. Distal end of long cone -------------------------------- 2.4 4.2 3.1 5.5 mGy/sec. ±40%
(Data obtained by direct measurement in the useful beam)
16. Nominal electrical output of H.V. generator ---------- 0.49 kW at 70 kV, 7 mA
17. Cone Source to skin distance Field size
a. Regular cone -------------------------------------------- 8 inches (203 mm) 58 mm dia., circular
b. Long cone (option) -------------------------------------12 inches (305 mm) 58 mm dia., circular
c. Rectangular cone (option) ----------------------------- 8 inches (203 mm) 36 x 47 mm, rectangular
18. Maximum symmetrical radiation field----------------60 mm dia. at distal end of cone
19. Leaking technique factor -------------------------------70 kV / 0.14 mA
(0.14 mA is maximum rated continuous
current for 7 mA with a duty cycle 1 : 50)
20. Duty cycle ------------------------------------------------ 1 : 50 (0.5 sec. exposure with 25 sec. interval)
21. Maximum deviation of tube potential, tube current and exposure time
a. Below 0.1 sec. setting----------------------------------±10 kV, ±2 mA, ±5 msec.
b. 0.1 sec. setting & up -----------------------------------±5 kV, ±1 mA, ±10 msec.
22. Measurement base of technique factors
a. peak tube potential -------------------------------------Average of peak tube potentials during
one exposure
b. tube current----------------------------------------------Average of tube current during one exposure
c. exposure time ------------------------------------------- Time period during x-ray is emitted
23. Half value layer ------------------------------------------1.5 mm Al over
24. Source to the base of cone distance ------------------- 94 mm
25. Environmental condition for storage ------------------ -20 ~ 70˚C, 10 ~ 100%, 500 ~ 1060hPa
SECTION 1 : TECHNICALDATA

-3-
[ 2 ] PHYSICAL DIMENSIONS
Fig.1-1 Dimensions
( ) =mm
5-15/16" (150)
7"
(178)
8-5/16"
(211)
3" (76)
28-1/2" (723)
39-5/8" (1006)
45-3/4" (1162)
14-1/4" (361)
16-3/16" (462)
50-5/16" (1294)
13/16" (20)
9-3/16" (233)
2" (50)
38-5/16" (973)
40-5/16" (1023)
48-5/16" (1243)
Short Cone
Long Cone
4-3/4"(122)
18-5/8" (473)
220˚
600˚
90˚
90˚
300˚
MAX 75-5/8" (1922)
Cabinet Frame
31-1/2" (800) Max. 46-7/8" (1190)
Stroke 43-5/16" (1100)
2-1/4"
(58) 3-3/16" (80)
3-9/16" (90)
34-1/2" (876)
19-1/16" ~ 62-3/16" (480 ~ 1580) 56-1/2" ~ 78-3/16"
(1435 ~ 1985)
44-7/8" (1165)
Focal Spot Marking
Reference Axis
SSD
SSD
+ 158 mm
160 mm
SSD (Source to Skin Distance) :
a. Regular cone----------8 inches (203 mm)
b. Long cone------------12 inches (305mm)
c. Rectangular cone-----8 inches (203 mm)
Location forWires

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[ 3 ] TUBE HEAD THERMALCHARACTERISTICS
A. Interval between each exposure
The temperature inside of the tube head rises when an exposure is made. The value of the heat
generated is measured in Heat Units (HU), which is the product of tube potential, tube current
and exposure time. Excessive heat will accumulate inside of the tube head if the x-ray is used
without a proper cool down interval between each exposure. The excessive heat may damage the
x-ray tube, high voltage generator or both.
B. Duty cycle
A cool down interval of 50 seconds or more must be allowed between each 1 second exposure.
(a 25 second cool down must be allowed between each 0.5 second exposure.) This will avoid
the accumulation of excess heat and prolong the tube head life.
C. Tube head cooling curve
0
00.1 0.2 0.3 0.5 0.7 1235
5
10
15
20
25
30
00
1
12
210W
50kV
50kV
60kV
70kV
170W
130W
34
2
3
4
5
6
7
0
20
40
60
80
100
120
140
160
180
20 40 60 80 100
Time in Minutes
LoadTime (sec.)
Time in Minutes
Heat Storage (k H.U.)
Tube Current (mA)
Heat Storage (kJ)
HEAT UP
COOL DOWN
3. Maximum rating chart
1. Tube Hosung cooling curve 2. Anode thermal characteristics

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[ 1 ] SUPPORT REQUIREMENTS
Main Controller :
The main controller of model 303 has a wall plate
designed for mounting on two 2 x 4 wood studs with
16 inches (406mm) centers. The wall and mounting
hardware must be sufficient to withstand a 100 pound
(45kg) shear load and a 450 pound (205kg)with
drawal force at each of the four (ø 9 x 75mm) lag screws.
Sub Controller :
When mounting the model 303 sub controller, the wall and mounting
hardware must be sufficient to withstand a 10 pound (45kg) shear load.
If the PHOT-X II Model 303 is to be mounted in a manner other than
what is specified in this manual or if the hardware to be used is other
than what is supplied, the support capability of the wall and the
strength of the hardware must be checked and verified to be adequate.
[ 2 ] ELECTRICAL REQUIREMENTS
Power supply :
The model 303 x-ray system will operate on a power supply of 120VAC ±10% (108 ~ 132VAC)
with a 3 wire GROUNDED circuit, separately connected to the central distribution panel with an
over current protection device rated for 15 amperes. Recommended wire size is 14 AWG ; but if
the wire run distance is to exceed 50 feet (15m), 12 AWG is required. For wire run distances in
excess of 75 feet (23m) 10 AWG is required. Line voltage regulation must be within 2 ~ 5 % at
10.8 amps.
Interconnecting wiring between main controller and sub controller :
4 conductor, 20 AWG, 300V is recommended. Maximum wire run distance is 33 feet (10m).
Concealed wiring :
Route conduit and wires through wall and into (2) flush mounted junction boxes located (1)
behind the main controller and (1) behind the sub controller. Recommended heights above the
finished floor for the flush junction boxes are : 44-7/8" (1140mm) for the main controller and
51-5/8" (1310mm) for the sub controller. Wiring done in this manner should extend 12 inches
(300mm) beyond the wall surface to allow sufficient wire for connections.
Note : Follow local and national electrical code (NFPA 70) requirements during installation.
SECTION 2 : PRE-INSTALLATION INSTRUCTIONS
CAUTION
Fig.2-1 Main Controller
Fig.2-2 Sub Controller
Fig.2-3 Concealed Wiring
-
O
PHOT-X II
C
T1 T5
T2 T3 T4
FD
P
kV
60 70
mA
ab
4 7
INC
INC
CUS & PM
CUS
& PM
MLR OCC
MLR BW
Junction
Boxes
FROM
POWER
SOURCE
Terminal Block
in Main Controller Terminal Block
in Sub Controller
(1) (2)
WALL
1234
L N
4321
3P 4P 4P
Interconnecting Wire

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[ 3 ] LOCATION OF COMPONENTS
A. Main Controller, Arm and Head Assemblies :
Using the information Provided in Fig.2-4, determine the correct location for the main
controller.
PHOTX-II Model 303 x-ray unit should be installed on the wall that prevents
the horizontal arm rotate 360˚.
NOTE : State and local requirements supersede guide lines indicated below.
CAUTION
B. Sub controller
When determining the location for the sub controller, the following radiation requirements
concerning the operator's positioning must be considered.
The operater must :
1. have full view of the patient.
2. have full view of kV, mA, timer selections and exposure warning light.
3. be a minimum of 6 feet (1.8m) away from the patient.
4. be out of line of the useful beam of radiation or be positioned behind a protective device
with x-ray protection equivalent of 1 mm of lead.
Fig.2-4 Radius of Activity for X-ray Head
2-1/4"
16"
(19-5/8")
75-5/8"
(71-5/8")
220˚
73-3/8"
(69-3/8")
(43-5/8")
39-5/8"
( ) :WITH LONG CONE

-7-
SECTION 3 : INSTALLATION INSTRUCTIONS
Within the installation and confirmation procedures are inspection/test steps which the installer must
perform to insure that the installation meets the manufacturer's specifications. These steps require the
installer to record the necessary information onto the "ASSEMBLER'S INSTALLATION SECTION
OF THE LIMITEDWARRANTYREPORT FORM" supplied, which MUST be returned to BELMONT
along with the warranty card.
[ 1 ] INSTALLATION REQUIREMENTS
Tools :
Standard tool kit including 1.5 mm, 2 mm, 3 mm and 5 mm allen keys.
Instruments :
Digital multimeter with an accuracy of 1%, capable of measuring 150 VAC and 10 mA DC,
and capable of indicating true RMS value within 1 sec.
Standard calculator.
Power Supply :
Prior to starting the installation, inspect the power supply and confirm that it is 120VAC ±10%,
and a 3 wire GROUNDED circuit, separately connected to the circuit breaker panel with an over
current protection device rated for 15A (Refer to Page 5, [2] ELECTRICAL REQUIREMENTS).
Record the voltage reading of power supply on "Assembler's Installation Report".
[ 2 ] UNPACKING
Unpack the entire contents of the shipping carton. Included within the shipping carton are :
Hardware Quantity
Head with Regular Cone ----------------------------------------------------------- 1
Main Controller---------------------------------------------------------------------- 1
Screw for chassis (M4 x 10 mm)-------------------------------------------------- 4
Screw for chassis (M4 x 20 mm)-------------------------------------------------- 1
Screw for nylon clamp on wall plate (M4 x 10 mm) --------------------------- 1
Stopper Ring ------------------------------------------------------------------------- 1
Nylon Clamp (3/8”)----------------------------------------------------------------- 1
Insulation Tube for interconnecting wires --------------------------------------- 1
Front cover seal---------------------------------------------------------------------- 4
Wall Plate----------------------------------------------------------------------------- 1
Lag Screws for wall plate (ø9 x 75 mm) ----------------------------------------- 4
Arm Mounting Bracket------------------------------------------------------------- 1
Machine Bolt (M8 x 20 mm) ------------------------------------------------------ 3
Washer (M8) ------------------------------------------------------------------------- 3
Sub Controller ----------------------------------------------------------------------- 1
Sub Controller Mounting wood screw (ø4.1 x 20 mm) ------------------------ 3
Head key------------------------------------------------------------------------------ 1
Arm collar ---------------------------------------------------------------------------- 1
Balance Arm ------------------------------------------------------------------------- 1
Balance Arm Wrench --------------------------------------------------------------- 1
Horizontal Arm W/2 x End Caps-------------------------------------------------- 1
Brake Screw (M6 x 6 mm)--------------------------------------------------------- 2
Brake Plug (Brass Plug ø5 X 4 mm) --------------------------------------------- 2
Retaining Bolt (M6 x 35 mm) ----------------------------------------------------- 2
Stopper Screw (M6 x 15 mm) ----------------------------------------------------- 1
Brake Spring (ø5 x 11 mm) -------------------------------------------------------- 1
Documentation Quantity
Installation manual ------------------------------------------------------------------ 1
Operators manual-------------------------------------------------------------------- 1
Limited Warranty / Report Form -------------------------------------------------- 1
Wall mounting Template ----------------------------------------------------------- 1
FDA Form 2579 --------------------------------------------------------------------- 1
Inspect contents of shipping carton for damage or missing components.

-8-
[ 3 ] MAIN CONTROLLER ANDARM INSTALLATION
The instructions given below are for mounting the main controller assembly on two 2 x 4 wood studs
with 16 inch (406mm) centers. Should the PHOT-XII MODEL 303 be mounted in a manner other than
what is specified here, the wall and the strength of the hardware used must be checked and verified as
being adequate to withstand a 100 pound (45kg) shear load and a 450 pound (205kg) withdrawal force
at each of the four (ø9 x 75mm) lag screws. When using concealed wiring, a flush mounted junction box
with the necessary conduit and wiring must be pre-installed at 44-7/8 inches (1140mm)from the floor
and between the two studs (refer to wall mounting template).
A. WALL PLATE OF MAIN CONTROLLER
Make sure the power supply is turned OFF at the circuit breaker panel.
1. Tape the wall mounting template to the wall, positioning it so that the holes for mounting plate
lag screws are aligned with the vertical 2 x 4" studs.
NOTE : Confirm that the location of concealed wiring matches to the access hole of wall plate
template.
2. Mark the hole locations for the mounting plate lag screws.
3. Use a 3/16" (5mm) dia. drill to make a pilot hole approximately 2" (50mm) deep for each mounting
plate lag screws.
Do not use a drill larger than 3/16" (5mm) dia. for these holes.
4. Place the wire through the hole into the stud mount
wall plate and mount the plate to the stud with the
four (ø9 x 75mm) lag screws.
DO NOT FULLY TIGHTEN.
5. Hold the plate firmly against the wall, place a level
across the front face. (#1 position in Fig.3-1)
If the wall is not plumb, use shims behind the plate
to level.
6. Place a level across top edge of wall plate, level and
tighten lag screws securely. (#2 position in Fig.3-1)
NOTE : Final leveling of wall plate is described on
page 16.
B. ARM MOUNTING BRACKET
1. Using three (M8 x 20mm) bolts with washers in top
mounting holes and in lower mounting hole, mount
arm mounting bracket to wall plate. (Fig.3-2)
WARNING
CAUTION
Fig.3-1 Wall Plate Installation
Wall Plate
Electrical
Wires
(ø9 x 75)
Lag Screw
Level
Level
# 2
# 1
Mats
Fig.3-2 Arm Mounting Bracket
Installation
Arm Mounting
Bracket
Electrical
Wires
Mats
(M8x20)
Bolt
FlatWasher

-9-
C. CHASSIS OF MAIN CONTROLLER
1. Remove the restriction plate over the terminal
blocks by taking out two (M 4 x 8mm) screws.
(Fig.3-3)
2. Route electrical interconnecting wires through
the access hole on chassis and mount the chassis
on the wall plate with four (M4 x 8mm) screws
and one (M4 x 20mm) screw. (Fig.3-3)
3. Put the supplied insulation tube on the
interconnecting wires to keep sufficient
insulation against the power supply wires.
4. Cut the wires to workable length and strip 3/8"
of insulation for power supply wires and 3/16"
for interconnecting wires for Sub Controller.
Connect power supply wires to 3P terminal
block and interconnecting wires to 4P terminal
block. (Fig.3-4)
5. Reattach the restriction plate.
(Fig.3-3)
D. HORIZONTALARM
1. Place a thrust washer over the hole on top of
the arm mounting bracket. (Fig.3-5)
Insert the cable and horizontal arm into the
hole, and mount to the arm mounting bracket,
as shown in Fig.3-5.
2. Insert two retaining bolts into the upper threaded
holes of the arm mounting bracket and tighten
securely with a Allen wrench. (Fig.3-6)
IMPORTANT :
The retaining bolts must be installed to ensure
that the horizontal arm can not lift out of the
arm mounting bracket.
3. Insert brake plug, brake spring and brake screw
(M6 x 6 mm) into the threaded hole of the hex
fitting located on the arm mounting bracket.
DO NOT FULLY TIGHTEN. (Fig.3-6)
Fig.3-3 Attaching Chassis to Wall Plate
Mats
Mats
Mats
Mats
Mats
Mats
Mats
Restriction
Plate
Chassis
Wall Plate
(M4x8)
Screw
(M4x8)
Screw
(M4x20)
Screw
Electrical
Wires
Fig.3-4 Wires Connection in Main Contoller
Horizontal Arm
Thrust Washer
Fig.3-5 Horizontal Arm Installation-1
Retaining Bolt
Retaining Bolt
Mats
Mats
Mats
Brake Plug
Hex Fitting
Horizontal Arm
Brake Spring
Brake Screw
Fig.3-6 Horizontal Arm Installation-2
1 2 3 4
L
N
3P Terminal
Block
4P Terminal
Block
Power Supply
Wires
Interconnecting Wires
(to Sub Controller)