Heliodent Plus Manual De Servicio

Mobile X-ray Camera

USER’S MANUAL

SHENZHEN YIDATAIt Co., Ltd.

CONTENTS User’s Manual

1. General Description ························································································································ 1 2. Technical Specifications ················································································································· 2 3. Illustration of Symbols···················································································································· 5 4. Loading Combination······················································································································ 5 5. Beam Applicator ······························································································································ 5 6. Work Conditions······························································································································ 7 7. Installation & Adjustment ··············································································································· 7 8. Operation ········································································································································· 12 9. Safety················································································································································ 13 10. Maintenance··································································································································· 15

User’s Manual Thank you for purchasing PLX102 Mobile X-ray Camera. Please read this User’s Manual carefully before operating the unit to ensure proper use. 1. General Description 1.1 Purpose The unit, which is anti-electroshock, radiation-proof with fixed anode and full wave commutation, is a knock-down mobile x-ray camera. It can be applied with either wireless control or panel control after being easily and conveniently placed into sickroom, operating room or other places, which is not only convenient for the patients, but also beneficial to medical personnel for not being subjected to unnecessary radiation. The unit is a product provided by our company with high quality and low price. Characteristics: The unit, with features of easy control, reliable function and beautiful figuration, completely meets the requirements for x-raying the skull, chest and extremities. 1.2 Standards The design and manufacture of the unit complies with the following standards: GB9706.1-1995 Medical Electric Device, Part 1: General safety requirements; GB9706.3-2000 Medical Electric Device, Part 2: Special safety requirements of High Voltage generator for diagnostic x-ray device; GB9706.11-1997 Medical Electric Device, Part 2: Special safety requirements of X-ray sourcing module and X-ray tube module for diagnostic X-ray device; GB9706.12-1997 Medical Electric Device, Part 1: General safety requirements, terms 3: the general radiation-proof requirements of x-ray device; GB9706.14-1997 Medical Electric Device, Part 2: Special safety requirements of accessories for X-ray device; YY-0200-95

Medical trade standard of 50mA X-ray device, PRC;

YZB/Su 0240-2003 Register No.

Registered standards of PLX102 mobile X-ray Camera;

2300242, Medical equipments department, Jiangsu Food and Drug Administration.

1.3 Components

1

Graph 1 Mobile X-ray Camera 1.4 Classification Class I Equipment, Type B. 1.5 Nameplates 1.5.1 Nameplate of Machine 1.5.1.1 Position (refer to Graph 1) 1.5.1.2 Description (refer to Graph 2)

Graph 2 1.5.2

Nameplate of X-ray Generator

1.5.2.1 Position (refer to Graph 1) 1.5.2.2 Description (refer to Graph 3) 2

Graph 3 2. Technical Specifications 2.1 X-ray Tube —

Model:

XD3—3.5/100

—

Focus:

2.6mm

—

Nominal anode power input: 3.5kW

—

Max anode thermal capacity: 35kJ

—

Nominal x-ray tube voltage: 100kV

—

Target Material: tungsten

—

Target angle:

—

Bias between the focus and datum axis: <1mm

—

Filament heating power of x-ray tube (A * V): 4.5 * 7, refer to chart of Filament

—

Filament emission characteristics (refer to the following charts)

—

Rating characteristics (refer to the following chart)

—

Anode heating and cooling characteristics (refer to the following chart)

—

Voltage commutation mode: The bridge type full wave commutation

—

Maximum continuous power: 350W

—

Equivalent filtration of x-ray tube: ≥ 0.5mmAl

19º

Characteristics

Graph 5

3

0

60 0

50

8 00

kJ 35 30

35 0W =4 50 HU /S

450

25 20

HU 20 0

15

/ se

c

15 0W =2 00 HU /S

10 5 0

2

4

6

8

1 0 t ( m in )

Graph 6 Anode heating and cooling characteristics 2.2 X-ray Generator —

Continuous max dissipation: 80W

—

Maximum thermal capacity: 480kJ

—

The angle between the anode target of x-ray tube and the datum axis: 19° (Datum axis is the perpendicular bisector through the window of x-ray generator)

—

The tolerance between the focus spot and the datum axis: ≤1 mm

—

Total filtration: ≥2.5 mmAl

—

Transformer N: High voltage transformer 1:331 Filament transformer 13.5:1

—

Grade for transformer oil: 45﹟

—

Radiation leakage: < 1.0 mGy/h 2.3 Power Output Data 2.3.1 Maximum Output Power, X-ray Tube Voltage, and X-ray Tube Current Maximum Power Output: 2.96kW X-ray Tube Voltage: 80KV, X-ray Tube Current: 50mA 2.3.2 Nominal Output Power, X-ray Tube Voltage, and X-ray Tube Current 4

Nominal Power Output: 1.998kW (0.74x90kVpx30mA, 1S) Nominal tube voltage and its corresponding maximum tube current: 90kV 30mA Nominal tube current and its corresponding maximum tube voltage: 50mA 80kV 2.4 Earthing Current Leakage Normal: ≤ 2.5 mA; Single Fault: ≤ 5mA 2.5 Focus Center The focus center of the X-ray tube monoblock keeps balance within the range of 550mm~1700mm. And the machine is with secure braking within the range. The ascending pull should be less than 80N while the descending pull should be less than 60N. 2.6 Distance between the Focus and Body The range of the distance between focus and boby: 500~1800 (mm) Distance between focus and Body is adjustable. The value reflected by pulling the focus-skin distance meter (2M) to the body is used to indicate the distance between the focus and body. Rock the generator to make a distance of 1 meter between the focus and body, then the x-ray field after getting through the beam applicator is 340 * 340mm. Adjust the handwheel of the beam applicator, it will form random rectangles with areas not larger than 340*340mm. The longer the distance it is between the focus and body, the larger the x-ray area is formed. When taking normal radiography, keep a longer distance between the focus of x-ray tube and the body of the patient, and meanwhile, move the patient as close as possible to the film.

3. Illustration of Symbols

4. Loading Combination 4.1 Loading Factor Combination 5

MA

kV

Time（S）

15

50~90

0.1~6.3

30

50~90

0.1~6.3

50

40~80

0.1~1.5

4.2 Scope of Adjustment by mAs and the Error It is divided into 3: 15mA, 30mA, 50mA, Deflection of mAs is no more than 20%. 4.3 Scope of Adjustment by Tube Voltage and the Error It is divided into 9: a） 15mA、30mA ： 50kV 55kV 60kV 65kV 70kV 75kV 80kV 85kV 90kV b） 50mA ： 40kV 45kV 50kV 55kV 60kV 65kV 70kV 75kV 80kV Deflection is no more than 10%. 4.4 Scope of Adjustment by Exposure time and the Error 1. Scope of adjustment: 0.1s～6.3s 2. Exposure time: error ≤ 10% +1 ms 4.5 Attenuation of X-ray Beam when Using Accessories The front panel of the film cassette will attenuate the x-ray beam during exposure and its maximum attenuation dosage is less than 1.2mmAl. If there are other accessories being used, such as the diagnostic bed placed between the X-ray generator and the film, it will cause more attenuation; therefore, the exposure parameters should be increased accordingly. 5. Beam Applicator 5.1 Nameplates Refer to Nameplate of X-ray accesories 5.2 Position: refer to Graph 7

Graph 7 5.3 Assembly and Disassembly Generally speaking, the position of beam applicator is as shown in Graph 7 when leaving factory. If the applicator needs to be disassembled, please firstly unscrew the plug for beam applicator from the socket (refer to Graph 14); secondly, turn the locking screw (refer to Graph 7) counter-clockwise to take off the X-ray module from the outer window. 6

For assembly, apply the reverse sequence.

5.4 Specifications 5.4.1 Collimator Lamp 24V/100W 5.4.2 Maximum X-ray Field: 5.4.3 Adjustment Method:

340*340mm (1.0m from the focus) manually adjust x-ray field

5.4.4 Time Limit of Collimator Lamp: 5.4.5 Additional Filter:

35secs (power cut automatically)

1 mmAl, 2 mmAl for each

5.5 Replacement of the Lamp When operating the machine, press down the timer switch, and turn the front-back and left-right adjust knob, the lamp shall light on. If not, then the lamp might be broken. Firstly, unscrew the plug for beam applicator from the socket and test the resistance with a multimeter via the two pins of the plug. If the resistance is detected to be reasonable, then search for other reasons. If not, please unscrew the 2-M3 screw on the rear board as shown in Graph8 and the 2-M3 screw on the lens hood, then you will see the lamp fixed on the magnetic base. Unscrew the 2-M3 screw on the magnetic base, pull out the lamp and place a new lamp into the base after confirming that the original one is broken. Then screw the 2-M3 screw on the magnetic base (please do not exert too much, or the glass crust of the lamp will break. After fixing the new lamp, try to pull it gently by fingers and make sure that it cannot be pulled out easily). Screw the plug for beam applicator into the socket as shown in Graph 14, and then press the timer switcher (refer to Graph 9). The lamp should stay lighted for about 1 minute and then go out automatically. Finally, remember to fix other remaining parts. Don’t leave out anything. The lamp is then successfully replaced.

Graph 8

7

Graph 9 5.6 Operation Methods The beam applicator is used to adjust the size of X-ray field, and its maximum X-ray field is in the direct ratio to the focus-film distance, its minimum X-ray field is not more than 5 x 5 m², and you can get the required X-ray field through turning the front-back and left-right adjusting knob. When the film distance is 1.0M, the max. X-ray field can reach 340 x 340 mm². Note: In order to protect the patients and doctors, when taking radiography, the focus-skin distance should be longer, and the body should be as close to the film as possible with the least possible dose. Before taking photos, the size of the X-ray field is adjusted and indicated by the light radiation field of the collimator lamp. When operating the unit, press down the collimator lamp switch (refer to Figure 9), and the lamp will light on and go out 35 seconds later; during this period, turn the front-back and left-right knob to get the required X-ray field, which is the same size when take photos. If the lamp is off while the required size is not ready, press the lamp switch again. The additional filters to the beam applicator (Refer to Figure7), is used to filter the weak X-ray. There are 2 pieces, one is1mmAl, and the other is 2mmAl. When the image on the film is not clear enough, you can add the filters of different thickness accordingly, which depends on the photographing parameters, patients’ situation and the doctors’ experience. 6. Work Conditions 6.1 Environmental Conditions Ambient temperature:

+10℃ ~ +40℃

Relative humidity:

45% ~ 75%

Atmospheric pressure:

70 ~ 106kPa

Exclude any explosive and/or corrosive gases and/or dusts 6.2 Power Conditions 8

Mains voltage: 220V, allowed range: 198V—242V Apparent resistance of mains supply: ≤1Ω Mains frequency: 50Hz, allowed range: 49.5Hz—50.5Hz Power input: 4kVA The phase of power supply: single-phase Place for Ground Connection 6.3 Work Mode Continuous operation with intermittent loading Maximum rated value:

X-ray tube voltage: 80kV X-ray tube current: 50mA

7. Installation & Adjustment Please read the User’s Manual thoroughly before install the machine. The place where the unit operate, install and adjust must be assembled with protectively grounded power supply that complies with relevant requirements. 7.1 Mechanical Parts 7.1.1 Firstly, open the upper cover of the package box, take off all the battens and carefully carry the machine out of the box. NOTE: If the road surface is rough or there is doorsill or elevator in the way when moving the unit, step down the pedal brake fully to uplift the front wheel so as to cross these barriers successfully.

Graph 10 Coupling diagram of x-ray generator and machine holder 7.1.2 Slightly press down the X-ray generator and pull the chromium-plated handle up (see the direction of the arrowhead, refer to Graph 10), then you can easily pull up the generator and make it move up and down freely, at the meantime, it keeps balance at any position. NOTE: The chromium-plate handle is a safety device, i.e. you cannot move the generator if you do not pull up the handle. If a CLICK is noticed when moving downwards and then the generator cannot be pulled up anymore, that means it has already reached the lowest position and has been locked again. Pull up the chromium-plate handle to make it move freely as described in the previous content.

9

Graph 11 Generator keeps balance at random position 7.1.3 Adjustment of Generator Balance After the machine is used for a long period of time, if the generator might not keep balance anymore, i.e. either upward movement or downward movement appears, you can unscrew the 4M3 bolts in at the upper side of machine and take away the rear board. Then screw the nut for fine-tuning (a direction adjusting mechanism). You can solve the problem of downward movement by screwing the nut clockwise and upward movement by screwing the nut counterclockwise. Adjust the nut to achieve generator balance. 7.1.4 The Movement Range of the Generator (refer to Graph 12)

Graph 12 a) The upward and downward movements range of the rocker: Lowest position: ≯500, highest position: ≮ 1750. Tighten the handwheel to fix it at certain position. b) Release the locking handle, the generator can rotate around the rocker at an range of ±90°. c) Release the locking screw counterclockwise, the generator can rotate around the axis at an range of ± 180°. 7.2 Electrical Part 7.2.1 Illustration of Control Table 10

13 1 12 2 11

V/kV

mA

3 H-OVER

1

X-RAY

O VE R

1.5

2 2.5

0. 6

PERLONG

10

3

0.4 4

0.2 15

30

0 .1

50

6 S

4

9

5 mA

kV

V / kV

8

V

7

6

Graph 13 1) “V/KV” voltage meter 2) “I” Power ON 3) “O” Power OFF 4) “S” Exposure Time Selection knob 5) “V” Mains Voltage adjustment knob (V knob) 6) “V/kV” alternative indication button 7) “kV” Tube voltage adjustment knob 8) “mA” Tube current adjustment knob 9) “15, 30, 50” mA indicator lamp (green) 10) Overload protection indicator lamp for x ray accessories (red) 11) Overload protection indicator lamp for x ray tube (red) 12) Exposure indicator lamp (yellow) 13) “mA” Tube current indicator meter 7.2.2 Illustration of Outlet

Graph 11 11

1) Connection socket for X-ray generator (larger pentagonal core) 2) Manual / Remote control selection knob 3) Test / Radiography selection knob 4) Socket for beam applicator (smaller pentagonal core) 5) Screw for ground connection & symbol 6) Mains supply socket (large triangle core) 7) Socket for manual control Switch connection (small tetragonal core) 7.3 Adjusting 1.3. 1 Test for the Controller After the installation and adjustment of the mechanical parts and x-ray generator, connect mains supply cable and manual control Switch connection. (1) Press Power ON button and V/kV alternative indication button to make the power supply voltage display on the voltage meter. (2) Adjust V knob (mains voltage adjustment knob) to make the needle of voltage meter position on ▽. Press V/kV alternative indication button to make the voltage meter display the value of kV and adjust kV adjustment knob to make the needle indicate 50~90 kV. (3) Turn the S knob (exposure time selection knob) to select a proper time and mA adjustment knob to select 15, 30 or 50 mA, at this point, press down the remote Switch when the manual/remote control knob is on the remote control position, the exposure indicator lamp (yellow) will blink. Similarly, press the manual control Switch when the manual/remote control knob is on the manual control position, the exposure indicator lamp (yellow) will blink and the buzzer will sound. At last, adjust kV adjustment knob to the minimum and mA adjustment knob to 15mA, and then cut off mains supply. 7.4.1 check the Controller and X-ray generator (1) Connect the X-ray generator wire to the Controller (bigger pentagonal core). Turn on power supply to check whether the filament in the X-ray generator lights on. Disconnect mains supply. Set in the beam applicator and its connection wire, and then close the lead shutter. NOTE: Take care of x-ray protection. 7.4.2 First Operation (refer to Graph 10) Before operate the machine for its first time or re-operate after leaving unused for more than 3 months, Test is needed to disperse the possible air in the X-ray tube. NOTE: 1. Adjust knobs of beam applicator to make the lead shutter to the minimum before testing, and take note of x-ray protection. 2. DO NOT adjust V (mains voltage adjustment knob), kV (tube voltage adjustment knob) knobs when undertaking a TEST. 3. If any unusual noise from the X-ray generator is noticed, disconnect power supply immediately and ask specialists to check. The procedures are as followed: (1) Turn the “TEST/ RAD” selection knob to TEST, and “S” knob (Exposure Time Selection

knob) to 6.3

seconds. 12

(2) Turn kV Adjust knob to 50kV and press down the panel switch to expose; (3) Gradually increase kV grade by grade, with each grade increasing by 5kV, and expose; (4) Increase to 90 kV and expose; If the tube current appears to be unstable when having an exposure, decrease tube voltage to have the exposure again until tube current appears to be stable; and under this condition, have the exposure several times in succession to ensure tube current has been stabilized, and then repeat step （3） and （4）; (5) Turn the “TEST/ RAD” selection knob to RAD, and have the exposure under a load factor of 50kV, 15mA, 0.1s~0.5s; (6) Gradually increase tube voltage grade by grade, with each grade increasing by 5 kV and have the exposures at an interval of more than 1 minute; (7) Increase to 90 kV and expose; (8) When increasing to 90 KV and having the exposure for 2 times, the testing ends if everything is in good condition. If any unusual noise is noticed during testing, decrease kV to perform the test again; if the noise still exists, disconnect power supply immediately and ask specialists to check. DO NOT turn on power supply until the trouble has been eliminated. CAUTION: 1. DO NOT adjust V (mains voltage adjustment knob), kV (tube voltage adjustment knob) and Mv knobs when undertaking a TEST. 7.4 Trial Operation

7.4.3 Adjust tube current (mA) Tube current of the unit has been adjusted to the precise position when leaving factory, but it may change because the power supply condition differs from place to place. When the error exceeds 10% of the rating, adjust it following the methods given below: (1)

Adjust power supply voltage adjustment knob (V knob) to ▽.

(2)

Turn tube voltage to 70kV.

(3)

Disconnect mains supply, and adjust 054 (15mA), 055 (30mA) and 055(50mA) resistors on R1, R2 respectively, and then connect mains and expose to make the mA value reach the rating.

(4)

Disconnect the mains, and then assemble the front baffle of controller according to its origin structure, and use a screw to fix it NOTE: DO disconnect main supply when adjusting the resistors to avoid electric shock.

8. Operation 8.1 Machine Ready Before moving the unit, make sure the unit is in the self-locking state, in which the rocker should be at the lowest position (Refer to Graph 1). And then, carefully move it to the location where radiography is needed, and fix it at that location by stepping down the pedal brake. (NOTE: If the road surface is rough or there is doorsill or elevator in the way when moving the unit, step down the pedal brake fully to uplift the front wheel so as to cross these barriers successfully.) Slightly press down the X-ray generator and pull the chromium-plated handle up, then lift the generator to a certain height. A reminder is that, the chromium-plate handle is a safety device, and you cannot move the generator if you do not pull up the handle. 13

8.2 Power On (1) Set in mains supply wire and the ground connection (olive-green wire). (2) Adjust the rocker to fix the x-ray generator on proper position, and put in the cassette with x-ray film under the part to be radio graphed of the patient. (3) Connect power supply, press V/kV alternative display button to make voltage meter display V value, and adjust V knob to make power supply voltage indicate on▽. 8.3 Set Parameters (1) Select proper kV, mA, and S value on the basis of clinical condition. (2) Adjust the beam applicator: Press down Timer Switch to turn on the collimator lamp, and adjust the Front-back & Left-right adjust knob to gain proper x-ray field based on the size of film. 8.4 Expose by Manual Control (1) Turn the Test/Rad selection knob to Rad. (2) Press the Manual/Remote selection knob to Manual. (3) Press down the Manual control switch to expose. (4) Disconnect mains supply after exposure finished. 8.5 Expose by Remote Control (1) Turn the Test/Rad selection knob to Rad. (2) Press the Manual/Remote selection knob to remote. (3) Choose a proper place with the remote control at hand (at any place within 2 ~ 10 meters far from the machine without any metal substances in the way). (4) Press down the remote control switch to expose. (5) Disconnect mains supply after exposure finished. NOTE: (1) Keep a distance of about 2 ~10m from the machine when applying remote control. Release the remote Switch (or manual control Switch) button if the radiograph has to be stopped in midstream. (2) The interval between subsequent exposures: 5 ~ 10 min (3) When taking photos, if a tube current of 50mA is chosen, then you cannot choose exposure time more than 1.5 seconds, or the overload indication lamp will blink and exposure will fail. (4) If the Ambient temperature of X-ray generator is about 60℃, the “H－OVER” overload indication lamp will blink(red) and exposure will fail .Please turn off the machine and turn on again after the temperature decrease (5) The collimator lamp will be turned off automatically in 35 seconds when adjusting beam applicator. If more illuminant time is required, turn it on again after 1 minute. (6) When applying manual control, the operator should take necessary measures to protect against radiation: wear x-ray protective coats and take radiography in the significant zone of occupancy (refer to Graph 12) to reduce radiation to the minimum.

14

Graph 12

9. Safety The unit belongs to radiology unit and must only be used in compliance with the instructions indicated in this manual and must not be used for other purpose than medical radiography. The operator must with the necessary knowledge in the field of radiation and with the necessary training in use of x-ray units. Take special notes of the following items when put the unit into operation: 9.1 General Safety (1) The unit must not be used when there are any electrical and mechanical faults. (2) Must be assembled with ground connection (the olive green one) when operating the unit. (3) Under no circumstances work in places saturated with vapors and/or flammable gases or explosives. (4) Any modification to the unit must be permitted by the manufacturer or its authorized serviceman (5) Regular check and maintenance is necessary for any incorrect operation will result in damage to the unit. (6) Our company takes full responsibility for damage to people and/or things but declines any responsibility for damage that caused by improper use or changing the system without permission. 9.2 Transportation and Storage 9.2.1 Transportation (1) Transit and protection should be well prepared according to the icons and/or symbols on the package box before transportation. (2) During transportation, if there is uneven or gravelly road present, the moving speed should not exceed 40km/h. The speed should be reduced further more if the road is found to be worse. (3) Watch out for any collision during transportation. To avoid collision during transportation, remove and transit it as light as possible. 9.2.2 Storage 1) Environmental temperature: -20℃ ~ +55 ℃ 2) Relative humidity: 10% ~ 100% 3) Atmospheric pressure: 500hPa—1060hPa 4) The unit must be settled in shadow, dry, moisture-guard and ventilated places. DO NOT put it in the open air. 9.3 Electrical Safety (1) Make sure the voltage and current of the electric net that the unit is to be connected complies with the 15

foreseen power supply requirements. (2) The unit must not be used in rooms with flammable and/or explosive gases. (3) Disconnect the unit from the mains before carrying out any cleaning, disinfection and/or sterilization. (4) Always turn the unit off after use. 9.4 Fuse 9.4.1 Model Model of fuse base

Model of fuse

Qty

Remarks

FU1

RL1-15

20 A

1

Special size

FU2

RL1-15

20 A

1

Special size

FU3

BLX

1A

1

Φ5×20 glass tube

FU4

BLX

1A

1

Φ5×20 glass tube

9.4.2 Location of Fuse Fuse FU1, FU2, FU3, and FU4 are divided into two groups inside the controller. The group of FU1 and FU2 is located at the left rear side of the controller, while the group of FU3 and FU4 at the right front side. There is clapboard being installed between the two groups, and FU3 and FU4 are fixed on the clapboard. Corresponding code is pasted right next to each fuse. 9.4.3 Replacement of the Fuse: Note: please cut off the power before replacing the fuse. If you want to replace the group of FU3 and FU4, please unscrew the two bolts on the front baffle of the controller and lay down the baffle, then you will see the BLX socket of the fuse a little above the right front side of the controller. Choose a socket pasted with either FU3 or FU4 according to the troubleshooting, and then unscrew the nut to replace the fuse. If you want to replace the group of FU1 and FU2, please unscrew the four bolts at the four corners on the faceplate and two bolts inside the controller after unscrewing the two bolts on the front baffle of the controller. Then carefully remove the electronic part of the controller. You will see the RL1-15 socket of the fuse at the left rear side of the controller. Choose a socket pasted with either FU1 or FU2 according to the troubleshooting, and then unscrew the nut to replace the fuse. After completing the replacement, please screw the nut back and install the controller according to the original arrangement, then screw the bolts and fix the front baffle of the controller. Please make sure that there is no bolt being left out before operating the machine. 9.5 Mechanical Safety CAUTION: (1) Before assembling the X-ray generator, absolutely DO NOT pull the chromium-plated handle (Refer to Graph 7 or 8), or injury might occur from the bounding back rocker. (2) If the X-ray generator is not assembled to the machine, absolutely DO NOT pull up the chromium-plated handle (Refer to Graph 7 or 8) or lift the rocker recklessly, otherwise, it will result in injury. (3) When disassembling the X-ray generator module, make sure the machine is in the self-locking state, in which the rocker is at the lowest position (Refer to Graph 1), and meanwhile a “click” from the chromium-plated handle is noticed (Refer to Graph 7 or 8). 16

SPECIAL DECLARATION: Our company takes no responsibility for any injury to personnel and/or damage to machine resulted from failing to follow these rules. 9.6 Protection against Radiation (1) Wear X-ray protective coats and glasses when operating the machine. (2) Apply remote control if possible. If the operator has to use manual control, make sure to operate in the significant zone of occupancy (refer to Graph 12). (3) When taking normal radiography, keep a longer distance between the focus of x-ray tube and the body of the patient (>200mm), meanwhile, make the patient get as close as possible to the film. (4) Use low dosage exposure if condition allowed. 9.7 Battery The remote controller of this machine requires an A23 battery. If the remote controller will be left unused for a long time, please remove the battery to prevent the battery liquid from damaging the remote controller. 10 Maintenance 10.1 General 1. The machine requires regular maintenance. 2. After a long period of use, the degree of safety may decline due to wear on parts. To protect the patient and operator from hazards, check regularly whether the mechanical parts are tightened and brake system is reliable. 3. Appoint special person to take charge of the unit and keep a management file. 4. The operator must be well trained so that they are able to carry out the regular checks. 5. To avoid excessive fatigue of the spring, put the X-ray generator module on the highest point when the unit is in nonuse. 10.2 Maintenance Cycle Interval Daily checks

Check Check the operation of the signals, display and indicator lamp Check that the warning and danger labels are intact Check that there are no oil leaks from the x-ray generator

Weekly checks

Check there is no unusual noise in the x-ray generator module during x-ray emission Check the earth resistance of the unit: (< 0.1Ω)

6-monthly checks

Check whether there is any loosing suspicion of the fixing screws of the mechanical parts Check the centering of the x-ray generator module and the beam applicator

10.3 Cleaning and Disinfections Don’t wash the machine with water, otherwise, it will cause damage to the machine. While cleaning and disinfecting the machine, first you should cut off the power, and then wipe the machine with cotton fabric soaked with cleaning liquid or disinfectant. Note: when cleaning the faceplate, you can only use cotton fabric soaked with water instead of cleanser or disinfectant, otherwise, it will accelerate the aging of the faceplate. 17

11. Disposal of the rejected machine If the machine is correctly operated and properly maintained, it can be used for a long period of time. The key parts, X-ray tube, can be used for about 10,000 times of exposure. If the tube is broken, it can be sent back to our company to change for a new one at a moderate price. After the unit has served for years, it may break down and cannot be repaired any more, then, the unit has to be disposed properly. The transformer oil in the x-ray generator has to be recycled by industrial oil recycling department; and the other components made from steels and coppers have to be disposed by the designated departments.

12. Troubleshooting Trouble

Possible reasons

What to resolve

The inner-resistance of power supply is

Check whether power supply meets the

too high

relevant work requirements

Test/Rad selection button is on the Teat

Turn the Test/Rad selection button to the Rad

position

position

Manual/Remote selection button is on the

Turn Manual/Remote selection button to the

Manual control position

remote control position

description

mA too low

Wireless control Switch does not work

Keep a too long distance from the unit or there is some metallic matter in the way

Adjust the place of operator

The remote control is out of power

Replace battery (A23 battery)

There is no current in the outlet

Check the outlet

Break-up of the power supply cable

Check and repair the power supply cable

Blowout of the fuse

Check and replace the fuses: FU1, FU2, FU3

Blowout of the fuse for the filament

Check and replace FU4

Unstable contact of the resistance ring

Check the resistance ring

Faults in the X-ray generator

Ask for specialists to check

Press power On button but no current input

No X-ray

13. Appendix 1) Principle diagram for 50mA bedside electric machine 2) Electric principle diagram for timer 3) Electric principle diagram for time lapse of beam applicator 18

14. Quality Guarantee If any malfunction is caused by quality related problems within one year from the date of purchase, the product can be repaired for free or returned to the factory, unless the client has not observed all the conditions stated in this manual.

15.Packing list Sequence

Title

Quantity

1

Machine holder

1

2

X-ray generator

1

3

Beam applicator

1

4

Remote Control Switch

1

5

20A fuse

4

6

1A fuse

4

7

Halo-tungsten lamp

2

8

Mains supply cable (with outlet),

1

9

X-ray generator cable

1

10

Manual control Switch

1

11

Ground connection (olive-green)

1

12

6mm inner-hexagon wrench

1

13

8mm inner-hexagon wrench

1

14

8-10 wrench

1

15

Screwdriver

1

16

Quality Certificate

1

17

User’s Manual

1

18

Additional Filter

2

Remark

24V/100W

1mm, 2mm thick for each

19