Foreword
Welcome to our portable high frequency dental x—ray unit. In this manual, technical performance, installation steps, usage, maintenance and precautions of this unit are all introduced in details. Therefore, please read this manual carefully before using the unit.
Portable High Frequency Dental X—ray Unit MSLIB276
IU. Product name, model and specification
Product name： X-ray unit
Model and specification： MSLIB275 1.2mA
IV.Conditions for Storage and Use
1 .Storage conditions:
Ambient temperature: 一20-70T
Relative humidity： <75%
Atmospheric pressure: 50 ~ 106Kpa
l.Operation conditions:
Ambient temperature: 10 ~ 40勾
Relative humidity： W75%
Atmospheric pressure: 70 ~ 106Kpa
3.Power supply conditions:
Charger:: Input 220V; 50Hz; Output 16.8V
V.Structure, Working Principle and Technical Parameters
1.Structure and working principle
The stmcture of this unit is simple, mainly composed of the x—ray device, charter and bracket.
Overall look
Working principle
The internal power of the device, after converted by the control wiring, is in one circuit sent to a boost device to generate a high voltage supplied to the anode of the x-ray tube, and in the other circuit, filament voltage is formed and supplied to the cathode of the x-ray tube. In this way, the x-ray is generated.
2.Technical parameters
Tube voltage 60KV
Tube current 1.2 mA
Exposure time 0.2 ~ 3.2S
Frequency 30KHz
Rated power 60VA
Focal spot to skin distance 100mm
Tube focus 0.3mm*0.3mm
Battery DC 16.8V 2300mAh
Input voltage: 220V; 50Hz
Output voltage DC16.8V
Product dimension (mm) 180mm* 140mm* 140mm
Packaging dimension (mm) 310mm*275mm*255mm
3.Main technical parameters for X-ray tube:
Nominal operating voltage
(KV) nominal focal spot value Target surface angle Filament parameters Fluoroscopic load
(w) Anode heat capacity (KJ)
current
(A) voltage
70 0.8 19° 2.0 2.85 ±0.5 150 9
4.Safety
Protective grounding xesistance： <0.20
Leakage current to groimd: W 2.0mA
Leakage current of the housing: W 0.1mA
Dielectric strength between grounded metal parts and power supply: N1500V
Dielectric strength of the high voltage generator: >1.1 times the tube voltage
The safety factor of the suspension (X—ray generatoi) N 4.
VI.Installation of equipment
1 .Installation
After receiving the unit, pleaae first open the package and check the parts according to the packing list before installation. This equipment is easy to install. It can be used directly held by hand or placed on a rack. Please operate strictly in accordance with the technical data- After installation and before starting the equipment, please make Bure that the unit and mobile bracket have been effectively iixed.
2.Effective operating area
See the picture on the right
VH.Operating Instruction
Set the mode, tooth position and exposure time
a.Mode setting： Press the button [ ©Child mode/⑪Adult mode ] shown in figure 2 to select the mode you need.
b.Tooth position selection: Press the button [ ©Maxillary tooth position selection / ⑰Mandibular tooth position selection ] shown in figure 2, select the tooth position you need.
c.Exposure time adjustment: Press the button [ © + Exposure time up/ ⑭一 Exposure time down ] , ' + ' Exposure time
up, '一' Exposure time down (Each time you press this, the time will be 0.05 second up or down).
X—ray film (sensor) placement
Put the x-ray film or sensor into the patient's mouth. To shoot the side of the tooth, you can fix the x-ray film or sensor with a positioner.
Shooting position adjustment
Change the angle of the unit by adjusting the mobile bracket to align the beam applicator with the tooth to be shot.
Exposure
a. Press the [④Exposure button] shown in Figure 1 to start exposure according to the preset conditions. The exposure status on the touch screen shows EXP during exposing, prompt is being exposed.
b. Exposure starts and ends with a beep, and when it finishes, the touch screen displays the preset exposure conditions which will be automatically memorized.
7.Device shutdown
Press the [①Power button] shown in Figure 1 and hold for two seconds, then release it, and the device wiU. be shut down.
8.Charging
Vlf the battery voltage is too low to work normally, please charge it in time;
\/lf the unit will not be used for a long time, please charge it once a month to ensure the normal performance of the battery; please use the original
Vcharger of the unit when charging;
VWhen finish charging (the LED indicator of the charger turns red from green), please unplug the DC output cable from the charging port, and then put the charger away.
%/Batteries are consumables. Each device is equipped with only one original battery. If you need to purchase it, please contact the manufacturer.
VUI.Cautions and Warnings
1.Cautions:
♦Make sure equipment users have been trained.
♦For pregnant patients, please consult the doctor before shooting.
♦Excessive radiation can cause slight harm to the human body.
♦Recommended humidity for storage: 10 ~ 75% RH.
♦Recommended humidity for use: 15 ~ 70% RH.
♦Optimum humidity range: 15 ~ 60% RH.
♦Recommended temperature for storage: 10 ~ 40 ° C.
♦Recommended temperature for use: 10 ~ 35 ° C.
♦Optimum temperature range: 10 ~30 ° C.
Additional remarks:
♦Since there are high voltage x-rays inside, please don't disassemble or repair the device without permission. Improper use will cause injury to users and patients.
♦ Non-professionals are not allowed to use or repair the unit.
♦If any problem or error that cannot be solved, please stop using it immediately and contact the designated factory.
♦Please charge within the range allowed by the device (220V, 50Hz).
♦A slight electric shock may occur when connecting power or moving the device.
♦Do not touch the device with wet hands.
♦improper chargers will cause damage to the battery.
♦Don't discard the used batteries randomly. Please put them in the designated recycling bin.
♦Keep the equipment clean and wipe it with a soft cotton cloth every time you disinfect it. Please turn off the main power before you disinfect it, and never allow liquid to flow into the device to avoid short circuit or corrosion.
♦Disinfect the device with 75% medical alcohol and wipe off the disinfectant with a wet towel.
2.Warnings
♦When finish charging (the LED indicator of the charger turns red from green), please unplug the DC output cable from the charging port, and then put the cables away.
♦Batteries are consumables. Each device is equipped with only one original battery. If you need to purchase it, please contact the manufacturer.
♦It is strictly prohibited to use the device while charging.
DC. Maintenance
Since the device involves operation and diagnosis, it shall be inspected annually to ensure the safety. In addition, this equipment involves high voltage or electrical control parts, so attention should be paid to check the safety of its insulation.
No. Description No. Signs Description
1 High-voltage components that may cause electric shock, 3 A Steps to note
injury to people, or test area during debugging 4 © Ground sign
2 Radioactive rays are generated when the corresponding 5 n Up
switch is turned on 6 BB BF type
Battery maintenance
Please have the device fully charge before using it for the first time.
When the battery of the device is low, it must be charged immediately. The device should be charged with over 80% power when the device is not used for a long time, and the battery should be charged every one month to avoid over-discharge of and damage to the battery. VPlease continue charging for two hour when the red light of the charger turns green, as that does not indicate that the battery is fully charged. A/Lithium batteries are not resistant to impact, high temperature, humidity, electromagnetic waves, high voltage, etc., so when transporting and using the device, please pay attention to the environment and handle it gently.
VPlease use the original charger instead of inferior or other chargers.
Vlt is strictly prohibited to use the device while charging.
X .Failures and Solutions
If the equipment fails, most of the problems can be solved by the following methods.
Failures Reasons/Solutions
The display is abnormal or there is a crash after start-up. Try to switch it off and on; check if the battery is low and charge in time.
Unable to start exposure normally; exposure terminated. There is a release while pressing the button.
X—ray film is dark/overexposed. Exposure time/developing time is too long.
X—ray film is whitish/underexposed. Exposure time/developing time is not enough; the beam applicator deviates from the x-ray film or is far from the skin; the battery voltage is too low.
X-ray film is gray and unclear. The bright room developing solution is not applied on the film evenly; the x-ray film or the device moves during exposure; the film or bright room developing solution is invalid.
XI .Electromagnetic compatibility
In order to ensure the electromagnetic compatibility of this equipment, this equipment needs to be installed, debugged and used in accordance with the accompanying documents. Portable and mobile radio frequency communication equipment may affect the electromagnetic compatibility of this equipment, so please strictly follow the installation and operation in the accompanying documents of this equipment, If you have any other questions, please contact our after-sales staff.
1 .Electromagnetic compatibility: This equipment will cause electromagnetic interference to other equipment through the air or connecting cables. The basic performance of this equipment has the required immunity to electromagnetic interference.
2.Solutions for common problems of electromagnetic compatibility:
Operate strictly in accordance with the requirements of the instruction manual of this equipment in case of electromagnetic interference.
Keep other equipment away from the device to reduce electromagnetic interference.
By adjusting the relative position/installation angle between the device and other equipment, electromagnetic interference can be reduced.
Electromagnetic interference can be reduced by changing the wiring position of other equipment power/signal cables.
Electromagnetic interference can be reduced by changing the power path of other devices.
3.Cables and accessories provided with the equipment
Name length ( m ) Block or not Remarks
Power cord 1.27 No From mains supply to charger
Charger cable 1.02 No From charger to device
4.Note: This device can only be connected with the cables mentioned in the accompanying documents. Using non-original accessories and cables to connect with this device may result in an increase in the electromagnetic radiation of the device or a decrease in immunity.
This equipment should not be used close to or stacked with other equipment. If it must be used close or stacked, it should be observed to verify whether it can operate normally.
5.Note: This product is not allowed to be turned on when it is charging
6.Basic performance: When powered by a battery, different tooth positions can be selected, exposure time can be selected, and radiation can be generated. When charging, the device shuts down and the charger power indicator lights up.
Table 1
|
Guidelines and manufacturer's declaration-electromagnetic emissions
|
|
The HQY-B2 dental X—ray unit should be used in the following electromagnetic environment. The purchaser or user should ensure that it is used in this electromagnetic environment
|
|
Emission test
|
Compliance
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Electromagnetic environment—guide
|
|
Radio-frequency emission GB4824
|
I group
|
The HQY—B2 type dental X-ray unit uses radio frequency energy only for its internal functions. Therefore, its radio frequency emission is very low, and the possibility of causing interference to nearby electronic equipment is very small
|
|
Radio-frequency emission Gb4824
|
B Type
|
HQY-B2 dental X-ray unit can be useed in all facilities, including Home appliances and other equirement directly connected to the public low-voltage mains supply
|
|
Harmonic emission GB 17625.1
|
A Type
|
|
Voltage fluctuation/flicker emission GB17625.2
|
Yes
|
Table 2
|
Guidelines and manufacturer's declaration-electromagnetic immunity
|
|
The HQY—B2 type dental X-ray unit should be used in the following electromagnetic environment. The purchaser or user should ensure that it is used in this electromagnetic environment
|
|
Immunity test
|
IEC60601 Testing level
|
Compliance level
|
Electromagnetic environment-guide
|
|
Electrostatic discharge
GB/T17626.2
|
± 6kV Contact discharge ± 8kV Air discharge
|
土 6kV Contact discharge ± 8kV Air discharge
|
The floor should be wood, concrete or ceramic tiles. If the floor is covered with synthetic material, the relative humidity should be at least 30% less.
|
|
Electrical fast transient burst GB/T17626.4
|
± 2kV to power cord ± IkV to input/output line
|
± 2kV to power cord
Not applicable
|
The mains supply should have the quality needed in a typical commercial or hospital environment
|
|
Surge
GB/T 17626.5
|
± IkV line to line ± 2kV line to ground
|
土 IkV line to line Not applicable
|
The mains supply should have the quality needed in a typical commercial or hospital environment
|
|
Voltage dips, short-term interruptions and voltage changes on the power input line GB/T17626.U
|
- 5%UT, lasting 0.5 cycle 40%UT for 5 cycles 70%UT for 25 cycles
- 5%UT, lasting 5s
|
- 5%UT, lasting 0.5 cycle 40%UT for 5 cycles 70%UT for 25 cycles
- 5%UT, lasting 5s
|
The mains supply should have the quality needed in a typical commercial or hospital environment. I£ the user o£ the HQY-B2 type dental X—ray unit needs continuous operation when the power is out, an uninterrupted power supply or battery is recommended to use is recommended.
|
|
Power frequency magnetic field （50Hz ） GB/T17626.8
|
3A/m
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3A/m
|
The power frequency magnetic field should have the characteristics of the power frequency magnetic field in a typical commercial or hospital environment.
|
Note: UT refers to the AC voltage before the test voltage is applied.
Table 3
|
Guidelines and manufacturer,s declaration-electromagnetic immunity
|
|
The HQY-B2 dental X—ray unit should be used in the following electromagnetic environment. The purchaser or user should ensure that it is used in this electromagnetic environment
|
|
Immunity test
|
IEG60601 Testing level
|
Compliance level
|
Electromagnetic environment-guide
|
|
RF conduction GB/T17626.6
|
3V (effective value)
150kHz-80MHz
|
3V (effective value)
150kHz-80MHz
|
Portable and mobile radio frequency commu nicati on equipment should not be used closer to any part of the HQY-B2 dental X-ray machine than the recommended isolation distance, including cables. The distance should be calculated by the corresponding formula of the transmitter frequency. d=1.2 d=1.2VF 80MHz-800MHz d=2.37? 800MHz-2.5GHz
式中：
P the maximum rated output power of the transmitter provided by the
transmitter manufacturer, and the unit is watt ( W );
d The recommended isolation distance, in meters (m);
The field strength of the fixed radio frequency transmitter is determined by surveying the electromagnet!c field, and it should be lower than the compliance level in each frequency range.
Interference may occur in the vicinity of equipment marked with the (((•))) following symbols. '、▲
|
|
Radio frequency radiation GB/T17626.3
|
3V/m
80MHz-2.5GHz
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3V/m
80MHz-2.5GHz
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|
|
Note 1: At 80MHz and 800MHz frequency, the higher frequency band formula is used.
Note 2: These guidelines may not be suitable for all situations. Electromagnetic propagation is affected by absorption and reflection from buildings, objects and humans.
|
- Fixed transmitters, such as wireless (cellular/cordless) phones and ground mobile radio base stations, amateur radio, AM and FM radio broadcasting, and television broadcasting etc., their field strength cannot be accurately predicted in theory. In order to assess the electromagnetic environment of fixed radio frequency transmitters, the survey of electromagnetic fields should be considered. I£ the measured field strength of the HQY-B2 dental X—ray unit is higher than the above applicable RF compliance level, please observe whether the HQY-B2 dental X-ray unit can operate normally. If abnormal performance is observed, supplementary measures may be necessary, such as readjusting the direction or position of the HQY-B2 dental X-ray unit.
- In the entire frequency range o£ 150KHz~80MHz, the field strength should be lower than 3V/m.
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Table 4
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Recommended isolation distance between portable/mobile radio frequency communication equipment and HQY-B2 dental X-ray unit
|
|
HQY-B2 dental X-ray unit is expected to be used in an electromagnetic environment with controlled radio frequency radiation interference. According to the maximum rated output power of the communication equipment, the buyer or user can prevent electromagnetic interference by maintaining the minimum distance between the portable and mobile radio frequency communication equipment (transmitter) and the HQY-B2 dental X-ray unit as recommended below.
|
|
Maximum rated output power of the transmitter
|
Isolation distance for different frequencies of the corresponding transmitter/m
|
|
|
150kHz-80MHz d=1.2妒
|
80MHz-800MHz d=1.2#
|
800MHz-2.5GHz d=2.3妒
|
|
0.01
|
0.12
|
0.12
|
0.23
|
|
0.1
|
0.38
|
0.38
|
0.73
|
|
1
|
L2
|
1.2
|
2.3
|
|
10
|
3.79
|
3.79
|
7.27
|
|
100
|
12
|
12
|
23
|
|
For the maximum rated output power of the transmitter not listed in the above table, the recommended isolation distance d (in meters, m), can be determined by the formula in the corresponding transmitter frequency column, where P is the maximum rated output power of the transmitter provided by the transmitter manufacturer, in watts (W).
Note 1: At 80MHZ and 800MHZ frequency, the higher frequency range formula is used.
Note 2: These guidelines may not be suitable for all situations. Electromagnetic propagation is affected by absorption and reflection from buildings, objects and humans.
|
XH.Notes
1 .Please do not use or store this device near fire sources or flammable or explosive chemical liquids or gases.
2.Please do not use or store the device outside the atmospheric pressure and temperature range.
3.Please ventilate the storage area of the device and avoid direct sunlight.
4.Patients and escorts shall take adequate protection when shooting, such as lead leather gloves, lead caps, etc.
5.Excessive radiation can cause slight harm to tke human body, so please minimize the time in the place of use and stay as far away from the x— ray source as possible.
6.Due to the internal x-ray tube and transformer oil, non—professionals are not allowed to use, disassemble or repair the device.
7.Please use the original charger, or it wiU. cause damage to the battery. When the device is not in use for a long period, please charge it once a month to extend the battery life.
8.Befbre shooting, please ask the patient to take off the glasses, removable dentures, hair clips and other metal parts that will enter the filming range to avoid image illusion.
9.Please Install the device as far from other electrical equipment as possible.
10.Electromagnetic interference can be reduced by adjusting the relative position / installation angle between the x—ray unit and other devices.
11 .Electromagnetic interference can be reduced by changing the wiring position of the power supply o£ other equipment.
12.The specified electromagnetic compatibility environm
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