Healson U20 Series User manual

Healson Technology Co.,Ltd.
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Digital Handheld Probe-type Ultrasound System
U20 Series
User Manual

Healson Technology Co.,Ltd.
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CONTENTS
Foreword.............................................................................................................................................. 1
Chapter 1 Safety Regulations.........................................................................................................4
1.1 Meaning of Signal Words.....................................................................................................5
1.2 Identification Label and Host Label....................................................................................6
Warranty card............................................................................................................................... 8
1.3 Safety Classification........................................................................................................... 10
1.4 Patient Safety.......................................................................................................................10
1.5 Operator Safety....................................................................................................................11
1.6 Probe Safety........................................................................................................................ 12
1.7 Electrical Safety...................................................................................................................13
1.8 Electromagnetic Compatibility and Risk Warning..........................................................13
1.9 ALARA principle...................................................................................................................17
1.10 Safety Statement...............................................................................................................18
1.11 Biological Effect................................................................................................................. 18
Chapter 2 System Composition and Characteristics....................................................19
2.1 Appearance.......................................................................................................................... 19
2.2 System Composition...........................................................................................................19
2.2.1 Product Model.......................................................................................................... 19
2.2.2 Performance Index.................................................................................................. 20
2.3 Intended Use........................................................................................................................20
2.4 Contraindication...................................................................................................................20
2.5 Target Group........................................................................................................................ 20
2.6 Lifetime..................................................................................................................................20
Chapter 3 Basic Principles and Main Technical Indicators......................................... 21
3.1 Basic Principle..................................................................................................................... 21
3.1.1 System Principle...................................................................................................... 21
3.1.2 System Composition Diagram...............................................................................21
3.2 Main Technical Indicators.................................................................................................. 21
3.3 Power Supply Voltage Adaptability.................................................................................. 22
3.4 Continuous Working Time................................................................................................. 22
3.5 Sound Output Parameters.................................................................................................22
3.6 Intelligently terminals requirements................................................................................. 22
3.6.1 Lowest configuration of normal PC terminals..................................................... 22
3.6.2 Recommended brands and models..................................................................... 22
Chapter 4 Installation and Instructions..........................................................................23
4.1 Using Conditions and Environmental Requirements.................................................... 23
4.2 Appearance Requirements................................................................................................23
4.3 Depth Requirement of Probe Immersion........................................................................ 23
4.4 Unpack and Check..............................................................................................................23

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4.5 Software Installation........................................................................................................... 23
4.6 Instructions of Startup & Shutdown................................................................................. 25
4.7 Connect/disconnect the probe.......................................................................................... 25
4.8 Connect Intelligent Terminals............................................................................................26
4.9 Diagnosis..............................................................................................................................26
4.10 Restart if with faults.......................................................................................................... 26
4.11 Instructions......................................................................................................................... 27
Chapter 5 Functions.............................................................................................................28
5.1 Main Interface...................................................................................................................... 28
5.1.1 Function Keys Area................................................................................................. 28
5.1.2 Image Area................................................................................................................28
5.1.3 Information Display Area........................................................................................ 28
5.1.4 TGC Regulation Area.............................................................................................. 28
5.2 Function Keys...................................................................................................................... 28
5.3 Brief Introduction to Functions.......................................................................................... 30
5.3.1 Interface Language..................................................................................................30
5.3.2 On-screen Display................................................................................................... 30
5.3.3 Display Mode............................................................................................................30
5.3.4 Display Depth........................................................................................................... 30
5.3.5 Focus Point...............................................................................................................30
5.3.6 Frequency Conversion............................................................................................30
5.3.7 Scan Speed.............................................................................................................. 30
5.3.8 Local Zoom............................................................................................................... 30
5.3.9 Display gray-scale................................................................................................... 30
5.3.10 Total Gain................................................................................................................ 30
5.3.11 TGC..........................................................................................................................31
5.3.12 Image Post-processing.........................................................................................31
5.3.13 Preset...................................................................................................................... 31
5.3.14 Pseudo-color.......................................................................................................... 32
5.3.15 DICOM.....................................................................................................................32
5.3.16 Static image............................................................................................................32
5.3.17 Cineloop.................................................................................................................. 32
5.3.18 Probe Switch.......................................................................................................... 33
5.3.20 Annotation...............................................................................................................34
5.3.21 Arrow........................................................................................................................34
5.3.22 System Settings.....................................................................................................34
5.3.23 Medical Record Management............................................................................. 34
5.3.24 Measurement and Calculation............................................................................ 34
5.3.25 Print Report............................................................................................................ 34
5.4 System Settings.......................................................................................................... 34
5.4.1 Basic Settings...........................................................................................................34
5.4.2 Obstetrics list preset................................................................................................35
5.4.3 Fetal Weight Formula..............................................................................................36

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5.4.4 Heart Preset..............................................................................................................36
5.4.5 Dicom Settings......................................................................................................... 36
5.5 Patient File Management...................................................................................................37
5.5.1 New Patient File....................................................................................................37
5.5.2 Patient Case Management.................................................................................... 38
5.6 Measurement and Calculation.......................................................................................... 39
5.6.1 Measurement Menu................................................................................................ 39
5.6.2 Measurement Symbol............................................................................................. 39
5.6.3 Emergency case measurement............................................................................ 40
5.6.4 Professional Measurement.................................................................................... 44
5.7 Print Report.......................................................................................................................... 52
5.7.1 Report Interface....................................................................................................... 52
5.7.2 Report Edit Function............................................................................................... 53
5.7.3 Report Input.............................................................................................................. 53
5.7.4 Image Input...............................................................................................................53
5.7.5 FDF Save.................................................................................................................. 53
5.7.6 Load Report.............................................................................................................. 53
5.7.7 Edit Model.............................................................................................................. 54
5.7.8 Print............................................................................................................................ 54
Chapter 6 Tablet Software Introduction.................................................................................... 54
6.1 Operation interface key function introduction.................................................................54
6.2 Main Interface...................................................................................................................... 55
6.3. Function Introduction.......................................................................................................... 56
6.3.1 Language.................................................................................................................. 56
6.3.2 Screen Display......................................................................................................... 56
6.3.3 Mode.......................................................................................................................... 56
6.3.4 Depth..........................................................................................................................56
6.3.5 Focus depth.............................................................................................................. 56
6.3.6 Frequency................................................................................................................. 56
6.3.7 Zoom.......................................................................................................................... 56
6.3.8 Gray............................................................................................................................57
6.3.9 Total gain................................................................................................................... 57
6.3.10 TGC..........................................................................................................................57
6.3.11 Image post processing..........................................................................................57
6.3.12 DICOM.....................................................................................................................57
6.3.13 static image............................................................................................................ 57
6.3.14 Cineloop.................................................................................................................. 57
6.3.15 Probe Switch.......................................................................................................... 58
6.3.16 Annotation...............................................................................................................58
6.3.17 Arrow........................................................................................................................58
6.4 System Settings...................................................................................................................58
6.4.1 Access to dialog box............................................................................................... 59
6.4.2 Menu Layout.............................................................................................................59

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6.4.3 Department............................................................................................................... 59
6.4.4 Freeze automatically............................................................................................... 59
6.4.5 Language.................................................................................................................. 59
6.4.6 Date Format..............................................................................................................59
6.4.7 Movie Frame.............................................................................................................59
6.4.8 Image Format........................................................................................................... 59
6.4.9 Dicom.........................................................................................................................60
6.4.10 Using Habit Setup................................................................................................. 60
6.4.11 About........................................................................................................................ 60
6.5 Patient Case Management................................................................................................60
6.5.1 New Patient File.......................................................................................................60
6.5.2 Open the patient file................................................................................................ 60
6.5.3 Save the patient file.................................................................................................60
6.5.4 Delete the medical records.................................................................................... 61
6.5.5 Cancel........................................................................................................................61
6.5.6 Search........................................................................................................................61
6.5.7 Medical records show............................................................................................. 61
6.5.8 Medical records resource show............................................................................ 61
6.5.9 Browsing....................................................................................................................61
6.6 Measurement....................................................................................................................... 61
6.6.1 Distance.....................................................................................................................62
6.6.2 Area Measurement.................................................................................................. 62
6.6.3 Heart Rate Measurement.......................................................................................63
6.7 Measurement Location Change....................................................................................... 63
6.8 Print....................................................................................................................................... 63
6.8.1 Report Edit Function............................................................................................... 64
6.8.2 Report Input.............................................................................................................. 64
6.8.3 Image Input...............................................................................................................64
6.8.4 Print............................................................................................................................ 64
6.9 Zoom in................................................................................................................................. 64
Chapter 7 Maintenance.................................................................................................................. 65
7.1 Power Supply Check.......................................................................................................... 65
7.2 Safety Instructions.............................................................................................................. 65
7.3 Probe Maintenance.............................................................................................................66
7.4 Daily Maintenance of Products.........................................................................................68
Chapter 8 Simple fault check and elimination.........................................................................68
8.1 Check............................................................................................................................ 68
8.2 Trouble Shooting.........................................................................................................68
Chapter 9 Transportation and Storage......................................................................................70
9.1 Transportation..............................................................................................................70
9.2 Storage......................................................................................................................... 70
Chapter 10 Service Guide..............................................................................................................70

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10.1 Maintenance Service................................................................................................70
10.2 Warranty Provisions................................................................................................. 70
10.3 Out of Free Maintenance Coverage...................................................................... 71
10.4 European Repsentative........................................................................................... 71
Appendix 1: Sound output of probe announcement.............................................................72

Healson Technology Co.,Ltd.
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Foreword
Product Information:
Respected users, thanks for using Digital Handheld Probe-type Ultrasound System
produced.Please read the contents before operating to ensure the safety and correct operation on
this machine,so that you can quickly grasp the performance of the equipment and use. Please
keep this manual in a safe place for easy access.
Product name: Digital Handheld Probe-type Ultrasound System
Product model: U20C/L, U30C/L
Registration producer: Healson Technology Co.,Ltd.
Address: Room# 2001, 20th Floor, No.1858 Yizhou Road, High-Tech Zone, Chengdu,
Sichuan, China.
Tel: [phone]
Zip code: 610041
Manufacture address: Room# 2001, 20th Floor, No.1858 Yizhou Road, High-Tech Zone,
Chengdu, Sichuan, China.
Date of manufacture：See product label
Version No.: V.1.0
Warning：
For the safe and correct operation of this equipment, to extend its life and ensure the
safety of users and patients,the user must totally understand its function, operation and
maintenance methods.Please read the contents before operating this machine,and
please note the following requirements:
1.This system must be used only by qualified medical professionals.
2.The formulas and databases in this manual are for reference only.
3. In order to use the equipment safely, please strictly follow the instructions in this
manual.
4. Although the amount of radiation caused by the use of ultrasonic diagnosis has no
effect on the human body ,avoid unnecessary ultrasonic energy to the human body as
far as possible.
5. DO NOT allow the operator to contact the patient, the live parts of the ultrasound
system or other devices.
6. In terms of safety, it is the operator's responsibility to understand the hazards of the
equipment and to take appropriate action to ensure that the patient receives the
minimum risk while obtaining the necessary diagnostic information.
7. If anything goes wrong with the machine, please immediately shut down and contact
the company or its authorized agents.

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Statement ：
The device provides software upgrades. as the system improve and update,the
software will also be updated.Therefore, contents of this manual are subject to change
without prior notice.
The configurations and functions are different for different models in different sales
regions.The features described in this manual and the displayed operation interface
may not be supported or different from your system. Please refer to the actual device
configuration.
Do not make any kind of commitment to this manual, including (but not limited to)
implied warranties of fitness for a particular purpose.
If There are replacement parts and scrap machine ,please classify ,recycle or dispose
them according to the local laws, regulations and environmental requirements.
After purchasing this product, the customer has full responsibility for the
maintenance and management of the product.
The warranty does not cover the following items,even during the warranty period:
1 )Damage or loss due to misuse or abuse.
2 )Damage or loss caused by Acts of God, such as fire, earthquake, flood, lightning
and so on.
3 )Damage or loss caused by failure to meet the specified conditions for this
system,such as inadequate power supply,improper installation or environmental
conditions.
4)Damage or loss due to use of the system outside the region where the system
was originally sold.
5 )Damage or loss involving the system purchased from a source other than our
company or its authorized agents.
.DO NOT make changes or modifications to the software or hardware of this system.
.In any case, Healson shall not be liable for any problems, damages or losses caused
by improper re-installation, alteration or repair by unqualified or unauthorized service
people.
.The purpose of this system is to provide physicians with data for clinical diagnosis.
.The physician is responsible for the results of diagnostic procedures. Healson shall not
be liable for the results of diagnostic procedures.
.Important data must be backed up on external memory media.
.Healson shall not be liable for loss of data stored in the memory of this system caused
by operator error or accidents.
.This manual contains warnings regarding foreseeable potential dangers, but you shall
also be continuously alert to dangers other than those indicated.
.Healson shall not be liable for damage or loss resulting from negligence or ignorance
of the precautions and operating instructions described in this operator’s manual.
.If a new manager takes over this system, be sure to hand over this user’s manual to
the new manager.

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Copyright：
.the hardware and software of this system are protected by intellectual property rights.
.Healson owns the intellectual property rights to this product and this manual .
.No individual or organization may copy, modify, or translate any part of this manual
without the prior written permission of Healson.
.This manual serves only as a reference for operation and maintenance of the
equipment.
.Healson reserves all right in final explanation of this manual.
Warranty and maintenance services
The warranty is 12 months. If the warranty period is not consistent with the above
standard warranty or another agreement in your contract with the seller, please consult
Healson services and confirm. If Healson can’t confirm,you may need to confirm with
the seller timely.
Warranty period starts from the written “installation date” on the "warranty card"
attached to products. "Warranty card" is the only certificate to calculate the warranty
period
In order to safeguard your rights and interests,Please urge the installer return the
card to Healson within 30 days from the data of installing the device.If the warranty card
you purchased is not returned to Healson on time,the warranty period will be extended
from days according to the "Product Code" marked on the box.
During warranty period, the products can enjoy free after-sales
service.However,please note that, even during the warranty period, when the product
needs repair due to the following reasons, Healson will charge maintenance services,
and you need to pay for maintenance and accessories.
1. Malfunction or damage caused by improper use or human behavior.
2.Malfunction or damage caused by unstable or out-of-range power input
3.Malfunction or damage caused by force majeure, such as fire, earthquake and
so on.
4. Malfunction or damage caused by improper operation or repair by unqualified or
unauthorized service people.
5. Others not caused by instrument or part itself
Healson can provide paid reparation service after the expiry of warrant.
If you do not pay or delay to pay the fees for maintenance services, Healson will
suspend maintenance services until you pay the bill.
After-sales Service Center
Manufacturer : Healson Technology Co.,Ltd.
Address: Room# 2001, 20th Floor, No.1858 Yizhou Road, High-Tech Zone, Chengdu, Sichuan,
China.
Postal code : 610041
Website: www.healson-tech.com
Tel: [phone]
Fax: [phone]

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Chapter 1 Safety Regulations
This chapter describes the important safety measures that should be taken before using Digital
Handheld Probe-type Ultrasound System U20L, and also indicates the equipment's compliance
standards. In order to ensure the safety of patients and operators before using this machine,
please read the following safety regulations.
► Do not modify this product, including
system components, software, and cables. If
users modify this equipment, it may cause
security problems and system performance
degradation. All modifications must be made
by professional approved by Healson.
►This system is not waterproof
designed. DO NOT use this system in
any place where water or any liquid
leakage may occur.
►Do not place the liquid above the
device. if the conductive liquid into the
charged circuit components may
cause a short circuit, resulting in a fire.
►If water is accidentally sprayed on
or into the system,power off the
system immediately and contact
Healson Customer Service
Department or agents.
►Do not operate this equipment in an
environment with flammable or
explosive liquids, vapors, gases such
as oxygen and hydrogen. Malfunction
or the spark generated by the fan
motor may detonate this materials
electronically.
►Do not place the probe on the
chemical environment(such as
corrosion, degradation, pollution) to
avoid damaging the device / probe by
the strong acids and bases .

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The operator shall pay attention to the following points in order to avoid the danger of explosion:
1) If there is a flammable substance in the environment, do not plug in the power supply or boot
the device software
2) Do not attempt to shut down the device or unplug the power if flammable substance is detected
in the environment after the system turned on.
3) If there is a flammable substance in the environment, please empty the area of the air before
shutting down the device.
4) DO NOT open the cover. Short circuit or electric shock may be caused when the system
hardware is exposed and powered on.
►Always keep the system dry. Avoid transporting this
system quickly from a cold place to a warm place; otherwise
condensation or water droplets may form resulting in a short
circuit and possible electric shock.
► If a fault occurs. Please contact Healson Customer
Service Department or agents .Do not try to solve it by
yourself.
1.1 Meaning of Signal Words
Indicate extremely hazardous situations that, if not
avoided, will result in the following situations.：
► Death or serious injury;
► Heavy property loss;
► Fire.
Indicate potential hazardous situations that, if not
avoided, could result in：
► Minor or severe bodily injury, even life-threatening;
► Heavy property loss.
Indicate a potentially hazardous situation that, if not
avoided, may result in：
► Minor personal injury;
► Property loss;
► Data missed.

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Product name: Digital Handheld Probe-type Ultrasound System
Product model: U20C/L, U30C/L
Voltage: DC 5V±0.5V
Power consumption: 3VA
Serial Number:
Registration producer: Healson Technology Co.,Ltd.
Address: Room# 2001, 20th Floor, No.1858 Yizhou Road, High-Tech Zone,
Chengdu, Sichuan, China.
Tel: [phone]
Zip code: 610041
Production license No.:
Registration certificate No.:
Product technical requirements No.:
Lifespan:
Other details please refer to the specification:
Manufacturing date：
Indicate a potentially non-compliance situation that, if
not avoided, may result in:
► Abnormal equipment;
► Invalid operation.
1.2 Identification Label and Host Label:

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Product name: Digital Handheld Probe-type Ultrasound
System
Product model: U20C/L U30C/L
Dimension:
Net: Gross:
Address: Room# 2001, 20th Floor, No.1858 Yizhou Road,
High-Tech Zone, Chengdu, Sichuan, China.
Tel：[phone]
Website：www.healson-tech.com
Package marks：

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Certificate
Product name: Digital Handheld Probe-type
Ultrasound System
Product model: U20C/L U30C/L
Serial Number:
Ex -factory Date:
Censor:
Address: Room# 2001, 20th Floor, No.1858 Yizhou
Road, High-Tech Zone, Chengdu, Sichuan, China.
After sales service: Healson Technology Co.,Ltd.
Tel: [phone]
Website: www.healson-tch,com
Qualification certificate
Warranty card

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Warranty Card
（Original）
Product name: Digital
Probe-type Ultrasound System
Handheld
Product model: U20C/L, U30C/L
Serial Number：
Service team: Healson Technology Co.,Ltd.
Address: Room# 2001, 20th Floor, No.1858 Yizhou Road, High-Tech Zone, Chengd
Sichuan, China.
Date of Installation:
Tel：[phone]
warranty period: twelve months
Zip code: 610041
Dear Consumers,
In order to provide you with excellent after-sales service, Please complete the warranty
registration, and return the copy of this card to our company for a half of month from the date
of purchase.we would like to keep your particulars on file so that can trace the quality of this
product.Otherwise it may affect timely warranty service which is your required .
if you have any other request,please enclose a separate letter.Thank you for your
cooperation!
statement：
.Users will enjoy free maintenance with the warranty card within the specified period.
.This warranty shall not extend to:
.Can not produce warranty card or number does not match;
.Malfunction or damage caused by improper use or man-made failure;
.Malfunction or damage caused by improper operation or repair by unqualified or
unauthorized service people.;
.Malfunction or damage caused by force Acts of God ,such as fire and
earthquake;
.The company is responsible for life-long maintenance without the warranty period.
Warranty Card
（Original）NO -----------------------------
**In order to provide you with excellent after-sales service, Please complete the warranty
registration, and return the copy of this card to our company**
product model：
Name：（stamp）
Serial Number：
Address：
Signing date：
Name of dean：
Installer：
Departments：
Operator：
Warranty period：
Tel：
Zip code：

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Probe:
All probes are attached to the shell with a data of working frequency and a raised
dot.The dot indicates the direction.
The raised edge corresponds to the " " mark on the scan screen. The " " mark
indicates the direction of the scanning probe.
Notes：
If the probe parameters or specifications are changed, please consult the company's
after-sales service department or refer to the latest instructions.
1.3 Safety Classification
According to the type of electroshock proof:
Class II equipment.
According to the degree of electroshock proof:
Type-B applied part.
According to the degree of protection against harmful ingress of water
The grade is IPX.
According to the degree of safety of application in the presence of a FLAMMABLE ANESTHETIC
MIXTURE WITH AIR or WITH OXYGEN OR NITROUS OXIDE:
Not AP/APG.
Whether the the device have application to discharge part of the protective effect of defibrillation.
The device does not have an application part that protects against defibrillation effects.
According to the mode of operation:
Continuous operation mode.
1.4 Patient Safety
► Please keep the correct identification of all patients’ data, and
verify the accuracy of such data when entering the patient's
name or ID number. Make sure that all data and the patients’
identification provided in the print are correct. Identifying errors
may result in incorrect diagnosis.
► Make sure that the confidentiality of patients’
information data.
► After accessories disinfecting,the chemical reagent
or gas must be completely removed. The residual
chemical reagent or gas will not only cause damage
to the accessories, but also harm the human body.
►DO NOT use this system in the presence of flammable
gases (e.g., anesthetic gas, hydrogen) or flammable
liquids such as ethanol, otherwise it may cause an
explosion.
► There may be a risk of electric shock if any lighting,

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monitor, or visual indicator remains open after the device
turned off.
► Be careful of biological hazards when performing
inspection procedures.Prevent the spread of the
disease.
► This system does not apply to the eye examination
and the examination may cause the beam passes
through the eye .
► This device is used with caution in patients with burns, scalds
or other external skin lesions.
► The device can not check the fetus for a long
period.
► This device may cause blurred images if the patient has too
much gas in the gastrointestinal tract.
►After examination of each patient, the probe and
reusable accessories should be thoroughly clean, and
carried out disinfection or sterilization if necessary.
►The device may be less likely to interfere with the
pacemaker.However, since the device will produce a high
frequency electrical signal, the operator should be aware of
the risks associated with this interference.
► Normal ultrasonic examination does not present a risk of
burns, even when the surface temperature of the probe exceeds
the body temperature of a patient due to the different
environmental temperature and inspection mode.DO NOT keep
the probe on the same region of the patient for a long time to
avoid being burned. Apply the probe only for a period of time
required for the purpose of diagnosis .
►Any accessory(such as gel) must meet be qualified.
1.5 Operator Safety
Commands:
This system must be used only by qualified doctor, medical staff who is familiar with the ultrasonic
technology and wave spectrum of testers.Unauthorized persons can not use this device.
Incorrect operation may result in the risk of injury to the
operator.It is only permitted by service people or
authorized by the manufacture to open the equipment
shell. Do not attempt to disassemble the device by
yourself.
► Risk of electric shock. DO NOT attempt to disassemble the
device by yourself. Maintain and adjustment should be done by
service people from or authorized by Healson.
► Before cleaning the device, remove the device from
the computer to prevent electric shock.

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►To avoid causing the damage of operators’ hand,
wrist or arm,Please note the following matters:
1）Keep the body in a balanced position during the
scanning operation.
2）During the operation, relax muscles regularly to
avoid prolonged repetitive operation.
3）DO NOT over-tighten the probe to avoid operating
in an uncomfortable position,which may result in the
damage of operators’ hand, wrist or arm .
1.6 Probe Safety
►If probe is dropped or collided with other
hard objects, DO NOT use it until the leakage
test has verified that the electrical safety is not
impaired.
► Never immerse the probe into liquids such
as water or disinfectant to clean because it is
not waterproof. Immersion may cause electric
shock or malfunction.
►Using the probe with caution, damage to the
probe may increase the risk of electric shock.
Please check frequently whether there are
cracks or openings in the shell,holes inside or
around the sound lens, or other damage to
resulting in water flow into probe.
►If contact surface of the probe is scratched,
immediately stop using it and contact the sales
office or distributor. If use a scratched probe,
there is a risk of electric shock.
► Avoid excessive bending the probe cable to
prevent the probe electrical safety from the
damage caused by the cracks or damage of
the probe shell, or cable breaking or exposure.
►DO NOT disinfect the probe with steam,
heat, or liquid sterilization, which can cause
permanent damage to the probe.
► DO NOT connect or disconnect the active
probe during real-time scanning,Probe could
be plug in/out with power on under freezing
condition or after existing ultrasound system.
► Repeated disinfection will reduce the probe
safety function, please check the probe's

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performance periodically.
1.7 Electrical Safety
► The ultrasonic equipment must use the
auxiliary computer with a USB port.
► When the this device and high-frequency
equipment (such as surgical electrodes) is
used at the same time, the malfunction of
surgical equipment or damaged probe lens
may cause surgical electrodes to burn the
patient.
► The probe and heart rate display waveform
panels must be removed from the patient
before electric defibrillation.
► The system uses high-frequency signals,
and the pacemaker can interfere with these
signals.Users should be aware of potential
hazards and should immediately turn off the
device if they are found or suspected of
interfering with the pacemaker operation.
► All input / output terminals of this device can
only be connected with the equipment
complying with GB.. If the device is connected
with the equipment complying with other
relevant national standards, the whole system
should conform to GB..
► All components of this device and all
accessories must be disposed of in
accordance with local environmental
regulations at the end of lifetime .
► All repairs must be made by our company. So the
device is not equipped with the corresponding circuit
diagram. If the customer has this need, please contact
your local dealer.
1.8 Electromagnetic Compatibility and Risk Warning
This user manual includes the following information:
Through the electromagnetic compatibility test, diagnostic system fits the National standards of
YY- and GB.-.
Please strictly observe the following requirements, or it may cause electromagnetic interference to
other devices or reduce the therapeutic apparatus of anti-electromagnetic interference, or even
the loss of basic performance.
This product belongs to A class equipment of the I group GB- , so it should not be used in

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household and can not be directly connected with the device used in residential low voltage power
grid facilities.
Instructions of portable and mobile RF communications equipment may affect medical electrical
equipment: The Portable and mobile RF communication equipment may affect the normal
operation of the device,so ensure to meet a certain distance between the communication
equipment and this device. Specific requirements are in table .
3) The length of USB cable should not be longer than . meters. If the cable is with breakdown,
please contact our company for repair or replacement, otherwise,may cause excessive
electromagnetic interference. If fthere is damage, please contact our company in time. Don’t
repair or replacement of components without permission, otherwise it may cause excessive
amounts of electromagnetic interference.
4) Caution: Using the accessories, probes and cables which against the regulations except the
probe or cable sold by the Healson of the device or system as spare parts for internal components
may result in increasing equipment and system emissions or reducing the immunity.
Caution: Equipment or system should not be used in close to and stacked with other equipment. If
it is essential, should observe and verify that it can operate normally in this configuration.
Basic performance
In normal situation, detect whether the host work properly, check the probe detection depth which
should meet the technical requirements( ..): Convex array probe should be deeper than or equal
to mm.
Test method: start the system, minutes later, test by using human body ultrasonic simulation
phantom.
Electromagnetic compatibility statement In table 1 - table 4
Digital Handheld Probe-type Ultrasound System Electromagnetic Statement
Table 1
Guide and Healson's statement - electromagnetic emission
The Digital Handheld Probe-type Ultrasound System intends to be used in the following electromagnetic
environment, the purchaser or user shall ensure that it is used in the electromagnetic environment
Launch Experiment
Compliance
Electromagnetic Environment - Guide
Radio frequency
Emission GB
set
The Digital Handheld Probe-type Ultrasound System uses RF
energy only for its internal function.So its RF emission is very
low, and the possibility of interference with electronic devices
is very small
Radio frequency
emission GB
Class A
The Digital Handheld Probe-type Ultrasound System is
suitable for using in all non - domestic and not directly
connected to all facilities of the residential public low-voltage
power supply network
Harmonic emission
GB .
Inapplicability
Voltage
fluctuation/Scintillation
emission
GB .
Inapplicability