Compex LT User manual

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TABLE OF CONTENTS
Introduction....................................................................................................................................................................4
Indications for Use........................................................................................................................................................4
Safety Warning..............................................................................................................................................................4
Contraindications...........................................................................................................................................................4
Warnings..........................................................................................................................................................................4
Precautions.....................................................................................................................................................................5
Adverse Reactions.........................................................................................................................................................7
Symbol and Title............................................................................................................................................................8
Environmental Condition for Transport and Storage..................................................................................................9
Electromagnetic Compatibility....................................................................................................................................9
How the Device Works................................................................................................................................................14
Setup..............................................................................................................................................................................19
Operating Instruction..................................................................................................................................................20
Performance Specifications......................................................................................................................................20
Cleaning and Maintenance.........................................................................................................................................21
Trouble Shooting..........................................................................................................................................................21
RecommendedUsePositions......................................................................................................................................23
Contact Information....................................................................................................................................................24

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INTRODUCTION
Compex LT, a transcutaneous electrical nerve stimulation (TENS) pain management device delivers
electric pulses to the user’s body through electrodes to block and relieve pain. The portable and compact
device features 12 modes with differing frequencies to target fatigued and sore muscles and helps in
relieving aches and pains in various parts of the body such as the waist, shoulders, joints, hands and feet.
INDICATIONS FOR USE
To be used for temporary relief of pain associated with sore and aching muscles in the shoulder, waist,
back, arm, and leg, due to strain from exercise or normal household and work activities
SAFETY WARNING
CONTRAINDICATIONS
»Do not use this device on patients who have a cardiac pacemaker, implanted defibrillator, or other
implanted metallic or electronic device, because this may cause electric shock, burns, electrical
interference, or death.
»Do not use this device on patients whose pain syndromes are undiagnosed.
WARNINGS
»Do not apply stimulation over the patient’s neck because this could cause severe muscle spasms
resulting in closure of the airway, difficulty in breathing, or adverse effects on heart rhythm or blood
pressure.
»Do not apply stimulation across the patient’s chest, because the introduction of electrical current into

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the chest may cause rhythm disturbances to the patient’s heart, which could be lethal.
»Do not apply stimulation over, or in proximity to, cancerous lesions.
»Do not apply stimulation when the patient is in the bath or shower.
»If you have one of the following conditions, please consult with your physician before purchasing or
using this device.
»Acute disease, malignant tumor, infective disease, pregnant, heart disease, high fever, abnormal
blood pressure, lack of skin sensation or an abnormal skin condition, any condition requiring the active
supervision of a physician
PRECAUTIONS
»Do not use this device while driving.
»Do not use this device while sleeping.
»Do not use this device in high humidity areas such as a bathroom.
»Keep the device away from wet, high temperature and direct-sunlight.
»Keep this device out of reach of children.
»Stop using this device at once if you feel pain, discomfort, dizziness or nausea and consult your
physician.
»Do not attempt to move the electrode pads while the device is operating.
»Do not use the device around the heart, on the head, mouth, pudendum or blemished skin areas.
»Do not apply stimulation of this device in the following conditions:
»(1) Across the chest because the introduction of electrical current into the chest may cause rhythm
disturbances to the heart, which could be lethal.
»(2) Over painful areas. Please consult with your physician before using this device if you have
painful areas.
»(3) Over open wounds or rashes, or over swollen, red, infected, or inflamed areas or skin eruptions
(e.g., phlebitis, thrombophlebitis, varicose veins). Apply stimulation only to normal, intact, clean, healthy
skin.

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»(4) In the presence of electronic monitoring equipment (e.g., cardiac monitors, ECG alarms).
The electronic stimulator may not operate properly when the electrical stimulation device is in use.
»(5) While operating machinery, or during any activity in which electrical stimulation can put
you at risk of injury.
»(6) On children
BE AWARE OF THE FOLLOWING.
»(1) Consult with your physician before using this device. The stimulation of the device may:
»i. cause lethal rhythm disturbances to the heart in susceptible individuals
»ii. disrupt the healing process after a recent surgical procedure
»(2) The device is not effective for pain of central origin, including headache.
»(3) The device is not a substitute for pain medications and other pain management therapies.
»(4) The device has no curative value.
»(5) The device is a symptomatic treatment and, as such, suppresses the sensation of pain that
would otherwise serve as a protective mechanism.
»(6) The long-term effects of electrical stimulation are unknown.
»(7) The user may experience skin irritation, burns or hypersensitivity due to the electrical stim-
ulation or electrical conductive medium (gel).
»(8) The user has suspected or diagnosed epilepsy, the user should follow precautions recom-
mended by his or her physician.
»(9) Use caution if the user has a tendency to bleed internally, such as following an injury or
fracture.
»(10) Use caution if stimulation is applied over the menstruating or pregnant uterus.
»(11) Use caution if stimulation is applied over areas of skin that lack normal sensation.
»(12) Stop using the device if the device does not provide pain relief.
»(13) Use this device only with the leads, electrodes, and accessories that the manufacturer
recommends.

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(14) DO NOT SHARE THE USE OF THE ELECTRODE PADS WITH OTHERS.
(15) DO NOT USE THE DEVICE WHILE IT’S CHARGING.
(16) THE DEVICE CONTAINS THE LITHIUM BATTERY. IF OVERHEATING OF THE DEVICE OC-
CURRED DURING THE CHARGING, STOP THE CHARGING OR OPERATION IMMEDIATELY AND
REPORT TO THE SELLER.
(17) DISPOSE OF THE BATTERY-CONTAINING DEVICE ACCORDING TO THE LOCAL, STATE, OR
FEDERAL LAWS.
THE LONG-TERM EFFECTS OF ELECTRICAL STIMULATION ARE UNKNOWN.
SINCE THE EFFECTS OF STIMULATION OF THE BRAIN ARE UNKNOWN, STIMULATION SHOULD
NOT BE APPLIED ACROSS THE HEAD, AND ELECTRODES SHOULD NOT BE PLACED ON OPPOSITE
SIDES OF THE HEAD.
THE SAFETY OF ELECTRICAL STIMULATION DURING PREGNANCY HAS NOT BEEN ESTABLISHED.
ADVERSE REACTIONS
»Patients may experience skin irritation and burns beneath the electrodes applied to the skin;
»Patients may experience headache and other painful sensations during or following the application
of electrical stimulation near the eyes and to the head and face.
»Patients should stop using the device and should consult with their physicians if they experience
adverse reactions from the device
THE ENVIRONMENTAL CONDITION FOR NORMAL WORKING, TRANSPORT, AND
STORAGE
»- Normal working ambient temperature: 5°C ~40°C
»- Normal working ambient humidity: 15% RH ~90% RH
»- Store and transport ambient temperature: -25°C ~70°C
»- Store and transport ambient humidity: 0% RH ~90% RH

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SYMBOL AND TITLE
Fragile; handle with care Type BF applied part
Keep away from water and rain CAUTION, Read manual before
operating this product
This way up Manufacturer
Product package recyclable Non-recyclable
Date of manufacture FDA 510(k) cleared
Serial number IP code of the device
Batch code

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ELECTROMAGNETIC COMPATIBILITY
AND FCC COMPLIANCE STATEMENT
1) This product needs special precautions regarding electromagnetic compatibility (EMC) and needs to
be installed and put into service according to the EMC information provided, and this unit can be affected
by portable and mobile radio frequency (RF) communications equipment.
2) Do not use a mobile phone or other devices that emit electromagnetic fields, near the unit. This may
result in incorrect operation of the unit.
3) Caution: This unit has been thoroughly tested and inspected to assure proper performance and
operation.
4) Caution: This machine should not be used in conjunction with other equipment.
GUIDANCE AND MANUFACTURER’S DECLARATION – ELECTROMAGNETIC EMISSION
The device is intended for use in the electromagnetic environment specified below. The user should assure that it is used in such
an environment.
EMISSION TEST COMPLIANCE ELECTROMAGNETIC ENVIRONMENT – GUIDANCE
RF emissions
CISPR 11
Group 1 The device uses RF energy only for its internal function. Therefore, its
RF emissions are very low and are not likely to cause any interference
in nearby electronic equipment

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RF emission
CISPR 11
Class B The device is suitable for use in all establishments, including domestic
establishments and those directly connected to the public low-voltage
power supply network that supplies buildings used for domestic
purposes.
Harmonic emissions
IEC 61000-3-2
Class A
Voltage fluctuations/
flicker emissions
IEC 61000-3-3
Complies
GUIDANCE AND MANUFACTURE’S DECLARATION – ELECTROMAGNETIC IMMUNITY
The device is intended for use in the electromagnetic environment specified below. The user should assure that it is used in such an
environment.
IMMUNITY TEST IEC 60601 TEST LEVEL COMPLIANCE LEVEL ELECTROMAGNETIC
ENVIRONMENT -
GUIDANCE
Electrostatic discharge (ESD)
IEC 61000-4-2
±6 kV contact
±8 kV air
±6 kV contact
±8 kV air
Floors should be wood, con-
crete or ceramic tile. If floors
are covered with synthetic
material, the relative humidity
should be at least 30%.
Electrical fast transient/burst ±2 kV for power supply lines
±1 kV for
Not applicable
(internal batte
Main power quality should be
that of a typical commercial or
hospital environment.

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IEC 61000-4-4 input/output lines powered) X
Surge
IEC 61000-4-5
± 1 kV line(s) to line(s)
± 2 kV line(s) to earth
Not applicable
(internal battery powered)
Main power quality should be
that of a typical commercial or
hospital environment.
Voltage dips, short interrup-
tions and voltage variations on
power supply input lines
IEC 61000-4-11
<5% UT
(>95% dip in UT)
for 0.5 cycle
40% UT
(60% dip in UT)
for 5 cycles
70% UT
(30% dip in UT)
for 25 cycles
<5% UT
(>95% dip in UT)
for 5 sec
Not applicable
(internal battery powered)
Main power quality should be
that of a typical commercial
or hospital environment. If
the user requires continued
operation during power main
interruptions, it is recommend-
ed that the device is powered
by an uninterruptible power
supply or a battery.

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Power frequency (50Hz/60Hz)
magnetic field IEC 61000-4-8
3 A/m 3 A/m Power frequency magnetic fields should
be at levels
characteristic of a typical location in a typical
commercial or hospital environment.
NOTE UT is the a.c. mains voltage prior to application of the test level.
GUIDANCE AND MANUFACTURE’S DECLARATION – ELECTROMAGNETIC IMMUNITY
The device is intended for use in the electromagnetic environment specified below. The user should assure that it is used in such
an environment.
IMMUNITY TEST IEC 60601 TEST
LEVEL COMPLIANCE LEVEL ELECTROMAGNETIC ENVIRONMENT – GUIDANCE
Conducted RF
IEC 61000-4-6
3 Vrms
150 kHz to 80 MHz
3 Vrms
Portable and mobile RF communications equipment
should be used no closer to any part of the device,
including cables than the recommended separation
distance calculated from the equation applicable to
the frequency of the transmitter.
Recommended separation distance

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Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to 2.5 GHz
3 V/m
d= 1,2√P80 MHz to 800 MHz
d= 2,3√P80 MHz to 2,5 MHz
Where P is the maximum output power rating of the transmitter
in watts (W) according to the transmitter manufacturer and d
is the recommended separation distance in meters (m).
Field strengths from fixed RF transmitters, as determined
by an electromagnetic site survey,ashould be less than the
compliance level in each frequency range.b
Interference may occur in the vicinity of equipment marked
with the following symbol:
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects, and people.

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A: Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and mobile radios, amateur
radio, AM, and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic
environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in
the location in which the device is used exceeds the applicable RF compliance level above, the device should be observed to verify
normal operation. If abnormal performance is observed, additional measures may be necessary, such as re-orienting or relocating
the device.
B: Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
RECOMMENDED SEPARATION DISTANCES BETWEEN
PORTABLE AND MOBILE RF COMMUNICATIONS EQUIPMENT AND THE DEVICE.
The device is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The user can
help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications
equipment (transmitters) and the device as recommended below, according to the maximum output power of the communications
equipment.
RATED MAXIMUM
OUTPUT POWER OF
TRANSMITTER
(W)
SEPARATION DISTANCE ACCORDING TO FREQUENCY OF TRANSMITTER(M)
150 KHZ TO 80 MHZ 80 MHZ TO 800 MHZ 800 MHZ TO 2.5 GHZ
0.01 0.12 0.12 0.23
0.1 0.38 0.38 0.73
1 1.2 1.2 2.3
10 3.8 3.8 7. 3
100 12 12 23

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For transmitters rated at a maximum output power not listed above, the recommended separation distance in meters (m) can be
estimated using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the
transmitter in watts (W) according to the transmitter manufacturer.
NOTE 1 At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects, and people.

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This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1)This device may not cause harmful interference, and
(2)This device must accept any interference received, including interference that may cause undersired operation.
The subject device has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC
rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
The product generates, uses, and can radiate radio frequency energy and, if not installed and used accordance with the instructions,
may cause harmful interference to radio communications.
However, there is no guarantee that the interference will not occur in a particular installation. If the product does cause harmful
interference to radio or television reception, which can be determined by turning the product on or off, the user is encouraged to try
to correct the interference by one or more of the following measures:
a) Reorient or relocate the receiving antenna;
b) Increase the separation between the product and the receiver;
c) Consult the dealer or an experienced radio / TV technician for help.
d) Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Changes or modifications to this product not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.

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PRODUCT SPECIFICATIONS
TECHNICAL INFORMATION
MODEL/TYPE Compex LT WEIGHT 40g
POWER SUPPLY Internal 3.7V Li-ion battery AUTOMATIC SHUTOFF 20 minutes
WAVEFORM AND WAVE
SHAPE
Biphasic rectangular wave
pulse
DEGREE OF PROTECTION
AGAINST ELECTRIC SHOCK
Type BF applied part
PULSE DURATION 100us (Microseconds) TYPE OF PROTECTION
AGAINST ELECTRIC SHOCK
Internally powered equipment
PULSE FREQUENCY 1-100Hz (Hz=vibration per
second)
GRADE OF WATERPROOF IP22
OUTPUT VOLTAGE Max. 70Vpp ±20%(at 500ohm
load)
PRODUCT LIFE 1 year
TREATMENT TIME 10 min, 20 min, 30 min, 40
min, 50 min, 60 min
LIFETIME FOR ELECTRODE Storage for 2 year（no use（,
Times of reusable: 30 times
OUTPUT INTENSITY 0 to 20 levels, adjustable MODE OF OPERATION Continuous operation
MODES 12 auto modes SOFTWARE VERSION A0
TYPICAL OPERATION TIME
OF BATTERY
Use of both channels at level
10, the battery can be used
570 mins after fully charged.
At level 20, the battery can be
used for 180 mins after fully
charged.
LIFE OF BATTERY 300 uses
Adapter for charging DC5V/output current 0.3-2.0A
Note: Not intended to be sterilized.
Not for use in an OXYGEN RICH ENVIRONMENT

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PROGRAM NAME TIME MIN. FREQUENCY (HZ) PULSE WIDTH
(（S)
MODE 1 10,20,30,40,50,60 5 100
MODE 2 10,20,30,40,50,60 12.5-55.5 100
MODE 3 10,20,30,40,50,60 1.2 100
MODE 4 10,20,30,40,50,60 100 100
MODE 5 10,20,30,40,50,60 100 100
MODE 6 10,20,30,40,50,60 12.5-55.5,1.25,100,100,
12.5-55.5...
100
MODE 7 10,20,30,40,50,60 20 100
MODE 8 10,20,30,40,50,60 55.5 100
MODE 9 10,20,30,40,50,60 55.5 100
MODE 10 10,20,30,40,50,60 69 100
MODE 11 10,20,30,40,50,60 69 100
Mode 12 10,20,30,40,50,60 69 100
PRODUCT SPECIFICATIONS
Accessories included
in the package.
(1). Control Unit (1)
(2). Electrodes (4)
(3). Output wire (2)
(4). Micro USB Charger (1)
(5). Quick Start Guide (1)

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ON / OFF
LCD DISPLAY
A CHANNEL
INTENSITY INCREASE
TIMER
MODE SELECTION B CHANNEL
INTENSITY DECREASE
OUTPUT A CHANNEL OUTPUT B CHANNEL
USB PORT
PAUSE / START
SETUP

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OPERATING INSTRUCTION
RECOMMENDED PRACTICE:
• Electronic Pulse Stimulator (TENS)needs to be charged for up to 8 hours before the first use.
• Connect a pair of electrode pads to one connecting wire by snapping them on; the other end of the connecting wire is connected
to the left output of the device. Similarly, the other pair of electrode pads is connected to the remaining connecting wire and the
right output of the device.
• Attach one pair or two pair of the electrode pads to the treatment area, such as shoulder and legs.
• Turn the unit switch on. When being on, the unit will automatically start at Mode 1.
• When being on, if the pad doesn’t stick to the skin, the word “PAD” on LCD will flash and remind you to stick pads well. When
“PAD” is flashing, you will not be able to increase the intensity.
• To change the mode press the M button, and gradually increase the intensity of the A (left) output by pressing the + button;
decrease the intensity by pressing the - button.
• When pressing the （ button, the unit will stop.
• When pressing T, one of the six timers could be selected.
• When pressing the B button once, switch from the control of the A(left) output to that of the B (right) output:
only the intensity of the B output could increase or decrease by pressing the + or - button. When pressing the A button again, switch
back to the A output; only the intensity of the A output could increase or decrease.
•Duration suggested for each skin area is 20 min and 2 times per day. Consult with your physician for longer and more frequent
uses.
•Start from the lowest intensity and gradually adjust the intensity to a comfortable level at a scale from 1 to 20.
•Good skin care is important for a comfortable use of device. Be sure the treatment site is clean of dirt and body lotion.
•Keeping the electrode in the storage bag after use will extend its lifespan. The electrode is disposable and should be replaced when
it loses the adhesiveness.
•When there is no bar inside battery icon and the battery icon keeps flashing, the power is low and the device will power off after 15
seconds. Recharge before using.