Norco Eco-Stim NC89481 User manual

Instruction Manual
Be sure to read this instruction manual before operating device.
Keep manual in a safe place.
NC89481
Eco-Stim™
TENS +EMS

North Coast Medical does not guarantee its content and
reserves the right to improve and amend it at any time
without prior notice. However, Amendments will be published
in a new edition of this manual.
All Rights Reserved.
© 2021, North Coast Medical, inc.
TABLE OF CONTENTS
North Coast Medical declares that the device complies with the
following normative documents:
IEC60601-1, IEC60601-1-2, IEC60601-1-11, IEC60601-2-10,
IEC62304, ISO10993-5, ISO10993-10, ISO10993-1, ISO14971
QUICK REFERENCE GUIDE 4
1. FOREWORD 6
2. SAFETY INFORMATION 8
3. GETTING TO KNOW YOUR DEVICE 13
4. SPECIFICATION 16
5. OPERATING INSTRUCTION 17
6. INSTRUCTIONS FOR USE 24
7. CLEANING AND MAINTENANCE 31
8. TROUBLESHOOTING 32
9. STORAGE 34
10. DISPOSAL 34
11. ELECTROMAGNETIC COMPATIBILITY
(EMC) TABLES 35
12. NORMALIZED SYMBOLS 40
13. WARRANTY 41

54
4) Press the [ON/OFF/M] button to turn on the device.
The LCD will light up, and then go into standby mode.
Based on your needs, press [ON/ OFF /M] button to select
the treatment mode:
5) Select treatment program. Based on your needs, press
[P] button to select the treatment program.
6) Set program parameter. Press and hold [P] button to enter
the setting mode. In programs p1 to p6 of the TENS mode,
and programs p1 to p5 of the EMS mode, Press [+]/[-] button
to adjust treatment time. (More info on pg. 25)
7) In programs U1 to U3 of the TENS mode, and programs
U1 to U3 of the EMS mode, press [P] button to adjust pulse
rate -> pulse width -> treatment time by setting the
parameters. Press [+]/[-] button to adjust.
8) Start treatment. Press the [+]/[-] button of CH1 or CH2 to
increase or decrease intensity.
9) Stop treatment. Press [ON/OFF/M] button to stop treatment
and return to the standby mode.
QUICK REFERENCE GUIDE
Please read the instruction manual completely before attempting
to use this device. Steps 1-3 should be completed with the device
turned o.
1) Open the battery cover, insert four batteries (type AAA) into
the battery compartment. Make sure you are installing
the batteries properly. Place the batteries according to the
markings of positive terminal(+) and negative terminal(-)
in the battery compartment of device. (More info on pg.17-18)
2) Insert the electrode wire connector into the electrode
connector. Make sure the two components are properly
connected to ensure optimal performance. Select one of
the two available channels and insert the lead wire rmly
into the device port.
3) Place the electrode on the location where you feel pain.
Refer to section 5.4.3 for correct electrode placement for
dierent body parts after reading 2.2.1 Contraindications
and 2.2.3 Precautions.

76
Introduction
The Norco® Eco-Stim™ TENS + EMS is a dual channel output
TENS, EMS and MASSAGE stimulator. Before using, please read
all the instructions in this user manual carefully and keep it in a
safe place for future use.
The Eco-Stim™ TENS + EMS belongs to the group of electrical
stimulation systems. It has three basic functions: TENS
(Transcutaneous Electrical Nerve Stimulation), EMS (Electronic
Muscle Stimulation) and MASSAGE.
Function of the Eco-Stim™ TENS + EMS: The device has 22
programs (9 TENS programs, 8 EMS programs and 5 MASSAGE
programs) and applies electric currents in the low-frequency
range for therapy. Each program controls the generated electric
impulses, intensity, frequency and pulse width.
Based on simulating the body’s natural pulses, the mechanism
of electrical stimulation equipment is to create electric impulses
that are transcutaneous transmitted to nerves or muscle bers
through the electrode. The intensity of the dual channel can be
adjusted independently and applied individually to one body
part. This dual channel device can be used with four electrodes,
which allow you to stimulate one muscle group simultaneously
with a wide selection of standard programs. The electrical pulse is
rst transmitted to the tissue, and then aects the transmission of
stimulation in nerves as well as muscle tissues in the body parts.
1.2 Medical background
1.2.1 ABOUT PAIN
Pain is an important signal in the human body warning system.
It reminds us that something is wrong, without which, abnormal
conditions may go undetected, causing damage or injury to vital
parts of our bodies.
1. FOREWARD Pain does not occur until encoded messages travel to the brain
where they are decoded, analyzed, and reacted to. The message
is transmitted via dierent nerves that travel up the spinal cord
to the brain. Pain is felt when the brain interprets the message.
1.2.2 WHAT IS TENS?
TENS (Transcutaneous Electrical Nerve Stimulation) is often
eective for pain relief. It is used daily and clinically proven by
physiotherapists, caregivers and top athletes around the world.
High-frequency TENS activates the pain-inhibiting mechanisms
of the nervous system. Electrical impulses from electrodes,
placed on the skin over or near the pain area stimulate the nerves
to block the pain signals to the brain, causing the pain to go un-
perceived. Low-frequency TENS facilitate the release of endor-
phins, the body’s natural painkillers.
1.2.3 WHAT IS EMS?
Electrical Muscle Stimulation is an internationally accepted and
proven way of treating muscular injuries. It works by sending
electronic pulses to the muscle being treated and causes the
muscle to exercise passively. It is a product derived from the
square waveform, originally invented by John Faraday in 1831.
Through the square wave pattern, it is able to work directly on
muscle motor neurons. The EMS System uses low frequency and
in conjunction with the square wave pattern allows direct work
on muscle groups.
1.2.4 WHAT IS MASSAGE?
The massage function is a non-medical function. The Massage
stimulation program provides relaxing muscle vibration to loosen
tight muscles.

98
2.1 Intended Use
TENS mode
TENS mode is used for temporary relief of pain associated with
sore and aching muscles in the neck, shoulder, back, upper
extremities (arm) and lower extremities (leg) due to strain from
exercise or normal household activities.
EMS mode
EMS mode is designed to stimulate healthy muscles in order to
improve and facilitate muscle performance.
Users must be 18 years or older.
2.2 Important Safety Precautions and Warnings
It is important to read all warnings and precautions in
this manual because they are intended to keep you
safe, prevent injury and avoid a situation that could
result in damage to the device.
SAFETY SYMBOLS USED IN THIS MANUAL
2.2.1 Contraindication
1) Do not use this device if you are using a cardiac pacemaker,
implanted debrillator, or other implanted metallic
or electronic devices. Such use could cause electric
shock, burns, electrical interference, or death.
2) The device should not be used when cancerous lesions or
other lesions are present in the treatment area.
3) Stimulation should not be applied over swollen, infected,
inamed areas or skin eruptions (e.g. phlebitis, thrombo-
phlebitis, varicose veins, etc.).
2. SAFETY INFORMATION 4) Electrode placements must be
avoided in the carotid sinus area
(anterior neck) or transcerebrally
(through the head).
5) This device should not be used in overly enervated areas.
6) Inguinal hernia.
7) Do not use on scarred areas following a surgery for at least
10 months after the operation.
8) Do not use with severe arterial circulatory problems in the
lower limbs.
2.2.2 Warning
1) If you have had medical or physical treatment for your pain,
consult with your physician before use.
2) If your pain has not subdued, becomes more than mild, or
lasts for more than ve days, stop using the device and
consult with your physician.
3) Do not apply stimulation over your neck because this could
cause severe muscle spasms resulting in closure of your
airway, diculty in breathing, or adverse eects on heart
rhythm or blood pressure.
4) Do not apply stimulation across your chest because the
introduction of electrical current into the chest may cause
rhythm disturbances to your heart, which could be lethal.
5) Do not apply stimulation over, or in proximity to cancerous
lesions.
6) Do not apply stimulation in the presence of electronic
monitoring equipment (e.g. cardiac monitors, ECG alarms),
which may not operate properly when electrical stimulation
device is in use.
7) Do not apply stimulation while bathing or showering.

1110
8) Do not apply stimulation while sleeping.
9) Do not apply stimulation while driving, operating machinery,
or during any activity when electrical stimulation can put you
at risk of injury.
10) Apply stimulation only to normal, intact, clean, healthy skin.
11) The long-term eects of electrical stimulation are unknown.
This electrical stimulation device cannot replace drugs.
12) Stimulation should not take place while the user is
connected to high-frequency surgical equipment, which
may cause burn injuries on the skin under the electrodes,
as well as problems with the stimulator.
13) Do not use the stimulator in the vicinity of shortwave or
microwave therapy equipment, since this may aect the
output power of the stimulator.
14) Never use in the thoracic area. Stimulation electrodes should
never be placed anywhere on the front of the thorax
(marked by ribs and breastbone), and not on the
two large pectoral muscles. Placing electrodes in
these areas can increase the risk of ventricular
brillation and lead to cardiac arrest.
15) Never place electrodes on eyes, head or face.
16) Never place electrodes near genitals.
17) Never place electrodes on skin that lacks normal sensation.
18) Keep electrodes separated during treatment. It could result
in improper stimulation or skin burns if electrodes are in
contact with each other.
19) Keep the stimulator out of reach of children.
20) Consult your doctor if you have any questions.
21) Discontinue use and do not increase the intensity level if you
feel discomfort during use.
2.2.3 Precautions
1) TENS is not eective for pain of central origin including
headache.
2) TENS is not a substitute for pain medications and other pain
management therapies.
3) TENS is a symptomatic treatment and, as such, suppresses
the sensation of pain that would otherwise serve as a
protective mechanism.
4) Eectiveness is dependent upon patient selection by a
practitioner qualied in the management of pain.
5) Since the eects of stimulating the brain are unknown,
stimulation should not be applied across your head, and
electrodes should not be placed on opposite sides of
your head.
6) The safety of electrical stimulation during pregnancy has
not been established.
7) You may experience skin irritation or hypersensitivity due to
the electrical stimulation or electrical conductive medium
(silica gel).
8) If you have suspected or diagnosed heart disease or
epilepsy, you should follow precautions recommended by
your physician.
9) Do not use if you have a tendency to bleed internally, e.g.
following an injury or fracture.
10) Consult with your physician prior to using the device after a
recent surgical procedure, because stimulation may disrupt
the healing process.
11) Use caution if stimulation is intended to be applied over
the menstruating or pregnant uterus.
12) For single patient use only.

1
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3
4
5
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14
6 7 8
13
12
11
10
9
No. Description QTY
1Eco-Stim™ TENS + EMS 1 pc
2Electrode pad (2 in x 2 in) 4 pcs
3Electrode wires 2 pcs
4Batteries (1.5V, AAA) 3 pcs
5Instruction manual 1 pc
No. Function Description No. Function Description
1Timer Sign 8Intensity for Channel 2
2Treatment mode 8Symbol of pulse width (μs)
3Key locking symbol 10 Symbol of pulse rate (Hz)
4Symbol of Channel 1 11 Symbol of Channel 2
5Intensity for Channel 1 12 Symbol of treatment time (min)
6Symbol of SET 13 Program number and Treatment time
7Indicator of no load 14 Symbol of Program
(Channel 1 and Channel 2) 15 Low battery indicator
1312
13) This stimulator should not be used by patients who are
noncompliant, emotionally disturbed or suer from dementia.
14) The instruction for use is listed and should be obeyed; any
improper use may be dangerous.
15) Rare cases of skin irritation may occur at the site of the
electrode placement following long-term application.
16) Do not use this device in the presence of other equipment
which sends electrical pulses to your body.
17) Do not use sharp objects such as a pencil or ballpoint tip
pen to operate the buttons on the control panel.
18) Check the electrode connections before each use.
19) Electrical stimulators should only be used with the electrodes
recommended for use by the manufacturer.
2.2.4 Adverse Reactions
1) Possible skin irritation or electrode burn under the electrodes
may occur.
2) On very rare occasions, rst-time users of TENS report feeling
light-headed or faint. We recommend that you use the product
while seated until you become accustomed to the sensation.
3) If the stimulation makes you uncomfortable, reduce the
stimulation intensity to a comfortable level and contact your
physician if problems continue.
3.1 Accessories
3. GETTING TO KNOW YOUR DEVICE
3.2 LCD display

1
2
3
4
5
6
7
8
9
No. Description
1LCD display
2
[ON/OFF/M] button:
In power saving mode, press the [ON/OFF/M] button to turn on the device;
In standby mode, press the [ON/OFF/M] button to select treatment mode; In
standby mode, press and hold the [ON/OFF/M] button to turn off the device;
In treatment mode, press the [ON/OFF/M] button to stop the treatment.
3
[+] button:
In standby or treatment mode, press the [+] button to increase the intensity
of the CH1;
In setting mode, press the [+] button to increase the corresponding data for
the pulse rate, pulse width or treatment time.
4
[-] button:
In treatment mode, press the [-] button to decrease the intensity of the CH1
At the key locking mode, press the [-] button to unlock the keys.
In setting mode, press the [-] button to decrease the corresponding data for
the pulse rate, pulse width or treatment time.
5
[+] button:
In standby or treatment mode, press the [+] button to increase the CH1 or CH2;
At setting mode, press the [+] button to increase the corresponding data for
the pulse rate, pulse width or treatment time.
6
[-] button:
In treatment mode, press the [-] button to decrease the intensity of CH2;
In the key locking mode, press the [-] button to unlock the keys.
In setting mode, press the [-] button to decrease the corresponding data for
the pulse rate, pulse width or treatment time.
7
[P] button:
In standby mode, press the [P] button to select the treatment program.
In standby mode, press and hold [P] button to enter the setting mode.
8Battery cover
9Output socket
1514
3.3 Device Illustration 3.3 Device Illustration

Device Name Norco® Eco-Stim™ TENS + EMS
Model/type NC89481
Power sources 4.5V D.C., 3x AAA batteries
Output channel Dual channel
Waveform Bi-phase square-wave pulse
Output current Max. 120mA (at 500ohm load)
Output intensity 0 to 40 levels, adjustable
Treatment mode: TENS, EMS and MASSAGE mode
Operating condition 5° C to 40° C with a relative humidity of 15%-93%,
atmospheric pressure from 700 hPa to 1060 hPa
Storage condition -10° C to 55° C with a relative humidity of 10%-95%,
atmospheric pressure from 700 hPa to 1060 hPa
Dimension 109 x 54.5 x 23mm (L x W x H)
Weight About 70g (without batteries)
Automatic shuto 1 minute
Classification BF type applied part, internal power equipment, IP22
Size of electrodes pad 50 x 50mm, square
Output precision ±20% error is allowed for all the output parameters
Number of programs 9 programs
P.W. (Pulse Width) 100-300μs
P.R. (Pulse Rate) 2-100Hz (Hz=vibration per second)
Treatment time 5-90 minutes
Number of programs 8 programs
P.W. (Pulse Width) 100-300μs
P.R. (Pulse Rate) 2-100Hz (Hz=vibration per second)
Treatment time 5-90 minutes
Number of programs 5 programs
P.W. (Pulse Width) 100-250μs
P.R. (Pulse Rate) 2-100Hz (Hz=vibration per second)
Treatment time 5-90 minutes
1716
4.1 Technical information
4. SPECIFICATION
TENS mode
EMS mode
MASSAGE mode
5.1 Battery
5.1.1 Check / replace batteries
Open the battery cover, insert four batteries (type AAA) into the
battery compartment. Make sure you are installing the batteries
properly. Be sure to place the batteries according to the positive
terminal (+) and negative terminal (-) markings in the battery
compartment of device.
5. OPERATING INSTRUCTION
5.1.2 Disposal of battery
Spent batteries should not be placed in household
garbage. Dispose of the batteries following your local
regulations. As a consumer, you have a legal obligation
to dispose of spent batteries properly.

1918
1) If a battery was swallowed accidentally, please seek medical
assistance immediately!
2) In case of battery leakage, please avoid contact with the
battery through skin, eyes and mucus membranes. If contact
occurs, please wash the contacted body part with plenty of
clean water and contact your doctor immediately.
3) Batteries should not be dismantled, thrown into re or
short-circuited.
4) Protect batteries from excess heat; take the batteries out of the
product if they are spent or you don't use it for a long time.
This can prevent device from damage due to battery leakage.
5) Replace all of the batteries simultaneously.
6) Always use the same type of battery when replacing.
5.2 Connect electrode pads to electrode wires
Insert the electrode wire connector into electrode connector.
Make sure the two components are properly connected to
ensure optimal performance. Please refer to the picture below.
5.3 Connect electrode wires to device
Before proceeding to this step, ensure that the device is
completely switched OFF.
Hold the insulated portion of the electrode wire connector and
insert the connector into the port on the top of the device.
Ensure the electrode wires are inserted correctly. The device
has two output ports controlled by Channel A and Channel B at
the top of the unit. You may choose to use one channel with
one pair of electrode wires or both channels with two pairs of
electrode wires. Using both channels gives the user the advantage
of stimulating two dierent areas at the same time.
Caution
Do not insert the plug of the electrode wires into any AC power
supply socket.
5.4 Electrode
5.4.1 Electrode options
The electrodes should be routinely replaced when they start
to lose their adhesiveness. If you are unsure of your electrode
adhesive properties, please order new replacement electrodes.
Follow application procedures outlined on electrode packaging
when using the new replacement electrodes to maintain
optimal stimulation and to prevent skin irritation.
5.4.2 Place electrodes on skin
Place the electrode on the body part in need of treatment according
to the instructions provided in this user manual. Cleaning the skin
before use will help ensure the skin and electrode connect well.
Caution
Always use electrode pads which comply with the requirements
of the IEC/EN60601-1, ISO10993-1/-5/-10 and IEC/ EN60601-1-2,
as well as CE and FDA 510(K) regulation.

1
1
2
2
12
2120
Caution
1) Remove the electrodes from the skin with a light to moderate
slow pull in order to avoid injury in the event of highly
sensitive skin.
2) Before applying the self-adhesive electrodes, it is
recommended that the skin be washed and degreased,
and then dried.
3) Do not turn on the device when the self-adhesive electrodes
are not positioned on the body.
4) Prior to removing or moving the electrodes, switch o the
device or the appropriate channel rst in order to avoid
unwanted irritation.
5) It is recommended that, at minimum, 1.97”x 1.97” self-
adhesive square electrodes are used at the treatment area.
6) Never remove the self-adhesive electrodes from the skin
while the device is still on.
5.4.3 Electrode placement
The Norco® Eco-Stim™ TENS + EMS is an OTC stimulator, suitable
for home or clinic use. It should be used in accordance with the
user manual. Place the electrode on the position where you feel
pain, conduct treatment and adjust based on how it feels.
Position of electrode placement under TENS programs
Neck
Shoulder
Arm
Hand
Back
Abdomen
Hip
Leg

1 2
2
1
1
2
1
2
1
2
1 2
2322
Arm
Hand
Back
Abdomen
Hip
Leg
Foot
Foot
Joint
(knee)
Joint
(elbow)
Joint
(ankle)
Joint
(wrist)
Neck
Shoulder
Position of electrode placement under EMS programs

2524
6.1 Turn on
When using device for the rst time, open the battery cover and
load three new batteries (Please kindly review Section 5.1.1 for
the operating steps and schematic diagram).
Press the [ON/OFF/M] button to turn on the device, the LCD will
light up and then enter standby mode as shown below.
6.2 Select treatment mode
Based on your needs, press [ON/OFF/M] button to select the
treatment mode. The LCD displays as follows:
6.3 Select treatment program
Based on your needs, press [P] button to select the treatment
program. The LCD displays as follows:
6. INSTRUCTIONS FOR USE
6.4 Set program parameter
Press and hold [P] button to enter the setting mode.
1) In the program p1 to p6 of the TENS mode, and the program
p1 to p5 of the EMS mode, Press [+]/ [-] button to adjust
treatment time.
The LCD displays as follows:
2) In the program U1 to U3 of the TENS mode, and the program
U1 to U3 of the EMS mode, press [P] button to adjust
pulse rate -> pulse width -> treatment time by setting
the parameter.
3) Press [+ ]/ [ -] button to adjust corresponding data.

Treatment
mode
Program
NO.
Treatment time
(min)
Frequency
(Hz)
Pulse width
(us) Type
PU1
Default: 30
Adjustable:
(5-90)
Default: 50
Adjustable:
(2-100)
Default: 180
Adjustable:
(100-300)
Con.
TENS PU2
Default: 30
Adjustable:
(5-90)
Default: 60
Adjustable:
(2-100)
Default: 160-260
Adjustable:
(100-300)
PWM
PU3
Default: 30
Adjustable:
(5-90)
Default: 60
Adjustable:
(2-100)
Default: 260
Adjustable:
(100-300)
IM
PU1
Default: 30
Adjustable:
(5-90)
Default: 5
Adjustable:
(2-100)
Default: 300
Adjustable:
(100-300)
Con.
EMS PU2
Default: 30
Adjustable:
(5-90)
Default: 60
Adjustable:
(20-100)
Default: 200
Adjustable:
(100-300)
SY
PU3
Default: 30
Adjustable:
(5-90)
Default: 70
Adjustable:
(20-100)
Default: 200
Adjustable:
(100-300)
AL
2726
4) Press [ON/OFF/M] button to return to the standby mode.
6.5 Start treatment
Press the [+] button of CH1 to increase the channel 1 intensity,
press the [+] button of CH2 to increase the channel 2 intensity.
The LCD displays as follows:
6.6 Adjust the output intensity
Place the electrodes on the body parts, press the [+] button to
increase output intensity. Intensity will be increased to a higher
level after each press.The device has 40 levels of output intensity.
Adjust the intensity to a level you feel comfortable. The level of
output intensity will be shown on the LCD:
If the intensity is too strong, you can press [-] button to decrease
intensity to a lower level. When the output intensity of both
channels decreases to zero, the stimulator will return to the
standby mode. The LCD displays as follows:
Caution
If you feel or become uncomfortable, reduce the stimulation
intensity to a more comfortable level and consult with your
medical practitioner if problems persist.

2928
6.7 Stop the treatment and turn o the device
Press the [ON/OFF/M] button to stop treatment during the
treating mode. Press the [ON/OFF/M] button again to turn o
the stimulator, and the LCD will be blank.
6.8 Load detection
Automatic detection of the load occurs when the intensity
is above level 5. If there is no load detection or the electrode
contacts has poor contact with the skin, the intensity will
automatically return to level 0 and the symbol ashes. The
stimulator will return to standby mode.
6.9 Low battery detection
When the batteries are low, the icon will ash. Stop the
device and change the batteries.
Caution
1) Batteries may be fatal if swallowed. Keep the batteries and
the product out of children's reach. If a battery is swallowed,
go to a hospital immediately.
2) If there is battery leakage, avoid contact with skin, eyes
and mucus membranes. Rinse the aected spots with
plenty of clear water immediately and contact a physician
right away.
3) Batteries must not be charged, dismantled, or short-circuited.
4) Protect batteries from excess heat. Take the batteries out of
the device if they are spent or you will no longer use them.
This prevents damage caused by leaking batteries.
6.10 Use of electrode pads
1) The electrode may only be connected with the Eco-Stim™
TENS + EMS device. Make sure the device is turned o when
attaching or removing the electrode pads.
2) If you want to reposition the electrode during the application,
turn the device o rst.
3) Electrode use may lead to skin irritations. If you experience
such skin irritations, e.g. redness, blistering or itching,
discontinue using them. Do not use the Eco-Stim™
TENS + EMS permanently on the same body part, as this
may also lead to skin irritations.
4) Electrode pads are intended for single patient use and not for
use with more than one person.
5) The electrode must connect entirely to the skin surface to
prevent hot spots, which may lead to skin burns.
6) Do not use the electrode pads longer than suggested
by electrode manufacturer as the connection between
electrodes and skin deteriorates over time.

3130
Usage advice for TENS:
If you feel the output intensity too strong, you can press [-]
button to decrease it.
If you don’t feel any discomfort during the treatment, we advise
you to use the device until the session ends. Normally, the pain
relief occurs after 5-10 min of treatment; Normally, we advise 1-2
treatments per day and one week as a treatment period.
After a treatment period, if pain relief is not achieved or the pain
gets worse, please consult your doctor.
Usage advice for EMS:
Place the electrodes on the body part you want to treat referring
to the picture on Section 5.3.3.
1-2 treatments per day, about one week as a treatment period.
We advise that you use the device for one session per time.
If you feel discomfort during treatment, you can either pause
the session or decrease the intensity of the output.
7) The adhesive force of the electrodes depends on skin
properties, storage condition, and the number of
applications. If your electrode pads no longer fully stick
to the skin surface, replace them with new ones. Stick
the electrode pads back onto the protective foil after use
and store them in the storage bag to prevent them
from drying out. This retains the adhesiveness for a
longer period.
Caution
1) Before applying the electrode, it is recommended that the
user’s skin be washed and degreased, and then dried.
2) Never remove the electrode from the skin while the device
is still on.
3) Only use the electrode pads recommended by the
manufacturer. Use of inferior electrode products could
result in injuries to the user.
6.11 Where do I attach electrode pads?
1) Each person reacts dierently to electric nerve stimulation.
Therefore, the placement of the electrodes may deviate
from one person to another. If the application is not
successful, contact your healthcare provider to nd out
which placement techniques are best for you.
2) Do not use smaller sized adhesive electrodes than what
was provided by the original manufacturer, otherwise the
current density may be too high and cause injuries.
3) The size of the adhesive pads may not be customized,
e.g. by clipping o parts of them.
4) Make sure that the region radiating the pain is enclosed by
the electrodes. In case of painful muscle groups, attach the
electrodes in such a way that the aected muscles are also
enclosed by the electrodes.
Fully comply with the following necessary daily maintenance
requirements to make sure the device is intact and guarantee
long-term performance and safety.
7.1 Cleaning and care for the device
1) Disconnect the electrodes from the stimulator. Clean the
device with a soft, slightly damp cloth. In case of heavier
dirt build-up, you may also apply a mild detergent.
2) Do not expose the device to moisture or dampness. Do not
hold the device under running water, nor submerge it in
water or any liquid.
3) The device is sensitive to heat and should not be exposed to
direct sunlight. Do not place device on hot surfaces.
7. CLEANING AND MAINTENANCE

Malfunction Common reasons Countermeasure
No display
after
replacing
the
batteries
1. There’s foreign matter in
the battery compartment.
2. The batteries are dead or
installed incorrectly.
3. There’s foreign matter in
the battery interface.
4. The batteries are not the
right model or something
is wrong with the battery
interface.
5. Exception reset
1. Check and clean the
compartment.
2. Replace with new
batteries or install the
batteries correctly.
3. Check and clean the
interface.
4. Replace the batteries with
the right model.
No
sensation
of
stimulation
1. The electrode is not
connected to the skin well.
2. The electrode wire is not
plugged into the unit.
3. The batteries are dead.
4. The skin is too dry.
1. Check and re-apply to skin.
2. Check the connection.
3. Replace the batteries.
4. Wipe the electrode and
the skin with a wet
cotton cloth.
Automatic
halt in the
treatment
1. The electrode loses
connection with the skin.
2. The batteries are dead.
1. Check and place the
electrode properly on
the skin.
2. Replace the batteries.
Rash or tickle
on the
skin occurs
in the
treatment
1. The treatment time lasts
too long.
2. The electrode is not in
good contact with the skin.
3. The interface of the
electrode is dirty or dry.
4. The skin is sensitive to
the electrode.
1. Do the treatment once a
day and shorten the
treatment time.
2. Stick the electrode to the
skin better
3. Wipe the electrode
with a wet cotton cloth
before use.
4. Check your allergic history.
Change the electrode
location or shorten the
treatment time. If your skin
is over-sensitive, stop the
treatment or see a doctor.
3332
4) Clean the surface of the electrode pads carefully with a
damp cloth after making sure the device is turned o.
5) For best hygiene, each user should use his/her own set
of electrodes.
6) Do not use any chemical cleaners or abrasive agents
for cleaning.
7) Ensure that no water penetrates into the device. Should this
happen, use the device again only when it is completely dry.
8) Do not clean the device during treatment. Be sure that the
device is turned o before cleaning.
7.2 Maintenance
1) The manufacturer has not authorized any maintenance
agencies. If your device has any problems, please contact the
distributor. The manufacturer will not be responsible for the
results of maintenance or repairs by unauthorized persons.
2) The user must not attempt any repairs to the device or any of
its accessories. Please contact the retailer for repair.
3) Opening of the equipment by unauthorized agencies is not
allowed and will terminate any claim to warranty.
Each product in manufacturing has been inspected through
systematic validation. Calibration and validation is not required
for this device.
If your product does not reach the expected performance and
the basic function has changed in normal use, please contact
the retailer.
Should a malfunction occur while using the device, check
whether the parameters are set appropriately for therapy,
and adjust the control correctly. Please see the following table:
8. TROUBLESHOOTING

Guidance and manufacturer’s declaration — electromagnetic emissions
The device is intended for use in the electromagnetic environment specied
below. The user of the device should assure it is used in such environment.
Emissions test Compliance Electromagnetic environment - guidance
RF emissions
CISPR11 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.
RF emissions
CISPR11 Class B
The device is suitable for use in all
establishments, including those directly
connected to the public low-voltage
power supply network that supplies
building power used or domestic
purposes.
Harmonic
emissions IEC
61000-3-2
Not
applicable
Voltage
uctuations /
Flicker emissions
IEC 61000-3-3
Not
applicable
3534
9.1 Storing the Electrode Pads and Lead Wires
1) Turn the device o and remove the lead wires from the unit.
2) Remove the electrodes from your body and disconnect the
lead wires from the electrodes.
3) Place the electrodes onto the plastic lm and store in the
sealed package.
4) Wrap the lead wires and store in the sealed package.
9.2 Storing the Unit
1) Place the unit, electrodes, lead wires and manual back into
the box. Store the box in a cool, dry place, -10° C ~ 55° C;
10% ~ 90% relative humidity.
2) Do not keep in places that can be easily reached by children.
3) When not in use for a long period, remove the batteries
before storage.
10. DISPOSAL
Spent batteries should not be placed in the household
garbage. Dispose of the batteries according to local
regulations. As a consumer, you have the obligation to
dispose of batteries properly.
Consult your municipal authority or your dealer for information
about disposal.
At the end of the product lifecycle, do not throw this product into
the normal household garbage. Bring it to a collection point for
the recycling of electronic equipment. Obsolete electrical and
electronic equipment may have potentially harmful eects on
the environment. Incorrect disposal can cause toxins to build up
in the air, water and soil and jeopardize human health.
9. STORAGE 11. ELECTROMAGNETIC COMPATIBILITY
(EMC) TABLES

Guidance and manufacturer’s declaration — electromagnetic immunity
The device is intended for use in the electromagnetic environment specied
below. The user of the device should assure it is used in such environment.
Immunity test IEC 60601 Test
level
Compliance
level
Electromagnetic
environment - guidance
Electrostatic
discharge (ESD)
IEC 61000-4-2
±8kV direct
& indirect
contact;
±15kV air
discharge
±8kV direct
& indirect
contact;
±15kV air
discharge
Floors should be wood,
concrete or ceramic tile.
If floors are covered with
synthetic material, the
relative humidity should
be at least 30%.
Electrical fast
transient/burst
IEC 61000-4-4
±2 kV for power
supply lines
not
applicable
not applicable
(for internally powered
equipment)
Surge IEC
61000-4-5
± 1 kV line(s) to
line(s)
not
applicable
not applicable
(for internally powered
equipment)
Voltage dips,
short
interruptions
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
not applicable
(for internally powered
equipment)
Power frequency
(50Hz/60Hz)
magnetic eld
IEC 61000-4-8
10V/m 10V/m
Power frequency
magnetic elds should
be at levels characteristic
of a typical location in
typical commercial or
hospital environment.
NOTE: U
T
is the a.c. mains voltage prior to application of the test level.
Guidance and manufacturer’s declaration — electromagnetic immunity
The device is intended for use in the electromagnetic environment specied
below. The user of the device should assure it is used in such environment.
Immunity test IEC 60601
Test level
Compliance
level
Electromagnetic
environment - guidance
Radiated RF
IEC 61000-4-3
10V/m
& table 9
10V/m
& table 9
Portable and mobile RF
communications equipment
should be used not 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
80 MHz to 800 MHz
800 MHz to 2.5 GHz
Where Pis 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 strength from xed RF
transmitters, as determined by
an electromagnetic site surveya,
should be less than the compliance
level in each frequency rangeb.
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 aected by absorption and
reection from structures, objects and people.
3736

a Field strengths from xed transmitters, such as base stations for radio
(cellular/cordless) telephones and land 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 xed 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 reorienting or relocating the device.
b Over the frequency range 150 kHz to 80 MHz, eld strengths should be
less than [Vi] V/m.
Test specications for ENCLOSURE PORT IMMUNITY
to RF wireless communications equipment (Table 9)
Test
frequency
(MHz)
Band
a)
(MHz) Service
a)
Modulation
b)
Maximum
Power
(W)
Distance
(m)
Immunity
Test Level
(V/m)
385 380-
390 TETRA 400
Pulse
modulation
b)
18Hz
1.8 0.3 27
450 430-
470
GMRS 460,
FRS 460
FM
c)
±5kHz
deviation
1kHz sine
20.3 28
710 704-
787
LTE Band
13,17
Pulse
modulation
b)
217Hz
0.2 0.3 9
745
780
810
800-
960
GSM800/900,
TETRA 800,
iDEN 820,
CDMA 850,
LTE Band 5
Pulse
modulation
b)
18Hz
20.3 28
870
930
1720
1700-
1990
GSM1800;
CDMA 1900;
GSM 1900;
DECT; LTE
Band 1, 3, 4,
25; UMTS
Pulse
modulation
b)
217Hz
20.3 28
1845
1970
2450 2400-
2570
Bluetooth,
WLAN,
802.11 b/g/n,
RFID 2450,
LTE Band 7
Pulse
modulation
b)
217Hz
20.3 28
5240 5100-
5800
WLAN
802.11
a/n
Pulse
modulation
b)
217Hz
0.2 0.3 95500
5785
NOTE: If it is necessary to achieve the IMMUNITY TEST LEVEL, the distance
between the transmitting antenna and the ME EQUIPMENT or ME SYSTEM
may be reduced to 1 m. The 1 m test distance is permitted by IEC 61000-4-3.
a) For some services, only the uplink frequencies are included.
b) The carrier shall be modulated using a 50% duty cycle square wave signal.
c) As an alternative to FM modulation, 50% pulse modulation at 18Hz may
be used because it does not represents actual modulation.
3938