TensCare perfect TENS User manual

0
INSTRUCTIONS FOR USE
READ CAREFULLY BEFORE USE

1
QUICKSTART GUIDE
Connect the unit with the electrode pads
Conecte el dispositivo a los parches
Connectez l’appareil aux électrodes
Verbinden Sie das Gerät mit den Elektroden
Place the electrode pads around the area of pain
Coloque los parches alrededor del área del dolor
Placez les électrodes autour de la zone douloureuse
Platzieren Sie die Elektroden um den Schmerzbereich
Press and hold the ON button to switch the device on
Presione y mantenga el botón ON para encenderlo
Appuyez sur le bouton ON pour allumer l’appareil
Halten Sie die ON-Taste gedrückt, um einzuschalten
Regulate the output intensity for each channel
Regule la intensidad en ambos canales
Réglez l’intensité pour chaque canal
Regulieren Sie die Intensität für jeden Kanal
Press and hold the OFF button to switch the device off
Presione y mantenga el botón OFF para apagarlo
Appuyez sur le bouton OFF pour éteindre l’appareil
Halten Sie die OFF-Taste gedrückt, um auszuschalten
ON
Button P
Channel 2
UP
Channel 2
DOWN
Channel 1
UP
Channel 1
DOWN
OFF
Select the programme by pressing the button P
Seleccione el programa, pulsando el botón P
Choisissez le programme avec le bouton P
Wählen Sie ein Programm mit der P-Taste
1
2
3
4
5
6

2
Dear Customer,
Thank you for choosing perfect TENS. TensCare stands for high-quality,
thoroughly tested products for the applications in the areas of gentle
electrotherapy, muscle toning, continence management and pain relief
during labour.
Please read these instructions for use carefully and keep them for later
use, be sure to make them accessible to other users and observe the
information they contain.
Best regards,
Your TensCare Team

3
Contents
1. INTRODUCTION ................................................................................................. 5
2. INTENDED USE .................................................................................................. 5
3. PERFECT TENS FEATURES ............................................................................. 5
4. HOW “TENS” WORKS ........................................................................................ 6
5. CONTRAINDICATIONS, WARNINGS & CAUTIONS.......................................... 7
6. INFORMATION ABOUT THE PROGRAMME SETTINGS ................................ 10
7. PROGRAMMES ................................................................................................ 11
7.1. PRESET PROGRAMMES .......................................................................... 11
7.2. MANUAL PROGRAMME ............................................................................ 12
7.3. PROGRAMME USAGE............................................................................... 13
8. ELECTRODE PADS .......................................................................................... 13
8.1. PAD POSITIONING .................................................................................... 13
8.2. PAD ADVICE .............................................................................................. 14
9. CONTENT ......................................................................................................... 14
10. UNIT INFORMATION..................................................................................... 15
10.1. CONTROLS & DISPLAY ......................................................................... 15
10.2. OPERATING INSTRUCTIONS................................................................ 16
11.SETTING UP AND USING THE PERFECT TENS......................................... 18
11.1. INSTALLATION OF BATTERIES............................................................. 18
11.2. CONNECTING LEAD WIRES.................................................................. 19
11.3. PREPARING FOR SESSION .................................................................. 19
11.4. TREATMENT SESSION .......................................................................... 19
11.5. AFTER YOUR TREATMENT SESSION.................................................. 20
12. CLEANING & STORAGE ............................................................................... 20
13. EMC ............................................................................................................... 20
14. DISPOSAL OF WASTE ELECTRICAL AND ELECTRONIC PRODUCTS
(WEEE) .................................................................................................................... 20
15. ACCESSORIES ............................................................................................. 21
16. WARRANTY................................................................................................... 21
17. TROUBLESHOOTING ................................................................................... 23
18. GENERAL SPECIFICATION.......................................................................... 24

4
SYMBOLS USED
TYPE BF APPLIED PART: Equipment providing a degree of protection against electric
shock, with isolated applied part. Indicates that this device has conductive contact with
the end user.
This symbol on the unit means “Refer to instructions for use”.
Temperature Limitation: indicates the temperature limits to which the medical device
can be safely exposed.
Lot Number: indicates the manufacturer’s batch code so that the batch or lot can be
identified.
Humidity Limitation: indicates the humidity limits to which the medical device can be
safely exposed.
Serial Number: indicates the manufacturer’s serial number so that a specific medical
device can be identified.
Do not dispose in household waste.
Catalogue Number: indicates the manufacturer’s catalogue number so that the device
can be identified.
Atmospheric Pressure: indicates the atmospheric limits to which the medical device
can be safely exposed.
Manufacturer Symbol
Date of Manufacture: indicates the date which the medical device was manufactured.
This is included within the serial number found on the device (usually in the battery
compartment), either as
“E/Year/Number” (YY/123456) or “E/Month/Year/Number”
(MM/YY/123456).
This medical device is indicated for home use.
This medical device is not water resistant and should be protected from liquids.
The first number 2: Protected against access to hazardous parts with a finger, and
the jointed test finger of 12 mm ø, 80 mm length, shall have adequate clearance from
hazardous parts, and protected against solid foreign objects of 12.5 mm ø and greater.
The second number 2:
Protected against vertically falling water drops when
enclosure is tilted up to 15˚. Vertically falling drops shall have no harmful effects when
the enclosure is tilted at any angle up to 15˚ on either side of the vertical.
CE Mark
Medical Device
Importer Symbol

5
1. INTRODUCTION
Device Description & Principles of
Design
The perfect TENS unit is specifically
designed to provide safe and effective
pain relief in the comfort of your own
home. It can help manage the pain from
a wide range of conditions.
Chronic pain: Back pain. Lumbago,
sciatica pain and arthritic pain.
Musculoskeletal pain: fibromyalgia and
injuries (sprains, tears, fractures,
muscle strain).
Acute pain: Dental and facial pain,
postoperative pain, and neuropathic
pain (and neuralgias).
TENS machines can be used alone for
pain relief or be combined with other
treatments.
2. INTENDED USE
Perfect TENS is a medical
device designed to be used in
the home healthcare
environment to provide symptomatic
relief and management of acute or
chronic localised pain and muscle pain
and is suitable for use by all who can
control the device and understand the
instructions.
Do not use the device for any purpose
other than this intended use.
Warning: Not suitable for use
in children without medical
supervision.
3. PERFECT TENS
FEATURES
•Dual Channel
Two independent channels with four
electrode pads to treat two areas at the
same time.
•Comfortable Stimulation
Gentle TENS stimulation with 60 small
steps of intensity (1 mA per step).
•8 Preset Programmes
Including Burst, Constant and
Modulation (frequency and strength)
modes and a HAN Stimulation
programme.
•1 Manual Programme
Additional programme that allows for all
the parameters to be manually adjusted
and saved to suit personal needs.
•Memory
Features 3 functions: programme
retention (automatically starts in the last
programme used), number of uses and
time of usage.
•Open Circuit Detection
Automatically resets the strength to
zero if the electrode pads are not
correctly applied.
•Automatic Keypad Lock
Automatic keypad locking prevents any
accidental changes in settings.
•Detachable Belt Clip
Enables the user to clip the unit onto a
belt.
•Large LCD Screen
Clearly shows the operation of the unit
and the programme and intensity being
used.

6
Note: The electrode pads need
to be applied directly to the skin
before the intensity increase
buttons will operate. If the perfect
TENS detects the unit is not properly
connected to you (for example if the
electrode pads or leads come loose)
then the unit switches the intensity to
zero. This safety feature prevents any
unpleasant changes in output.
4. HOW “TENS” WORKS
T.E.N.S. stands for Transcutaneous
Electrical Nerve Stimulation. T.E.N.S.
stimulates your body’s own natural
defences against pain, namely the
release of endorphins. TENS is totally
safe and has been used successfully by
thousands of pain sufferers.
TENS sends a gentle stimulation
through the skin which works in
TWO ways:
Pain Gate
It stimulates the
sensory nerves,
which carry touch
and temperature
signals. These
nerves go to the
same connections
in the spine as the nerves carrying pain.
A strong sensory signal will block the
pain signal travelling up the spine to the
brain. This is known as closing the
“Pain Gate” and takes effect quite
quickly after the unit is switched on.
When the gate is open, pain messages
get through to the brain and we feel
pain. When the gate is closed, these
pain messages are blocked and we do
not feel pain.
Evidence suggests that TENS produce
pain relief in a similar way to ‘rubbing
the pain better’. The pain gate can be
closed by activation of
mechanoreceptors through ‘rubbing the
skin’.
Scientifically, the pain gate works by
release of chemical in the synapse at
spinal level that inhibits transmission of
pain signal.
Endorphin Release
At low frequency
settings, and
slightly stronger
outputs, TENS
drives the motor
nerves to produce
a small repetitive
muscle
contraction. This is seen by the brain as
exercise, and this promotes the release
of endorphins - your body’s own natural
pain killer. The relief builds up and
normally takes about 40 minutes to
reach a maximum level which can last
for hours after the machine is switched
off.
By using TENS, you can expect to
achieve a significant reduction in pain -
if not complete relief from pain.
•TENS is effective for pain from a very
wide range of causes.
•TENS machines can be used to help
reduce pain from problems in
muscles, joints and nerves.
•It can be also used for people with
musculoskeletal pain such as long-
term (chronic) back pain or knee joint
arthritis. They are also often used for
pain relief in the early stages of
labour (see perfect mamaTENS),

7
particularly whilst a pregnant woman
remains at home.
•TENS may also be used to treat
many types of pain, such as period
pain and endometriosis (see Ova+),
cystitis, sports injuries, fibromyalgia
and neuralgia, plantar fasciitis, post-
operative pain, TMJ disorder,
diabetic neuropathy, osteo-arthritis
and sometimes non-painful
conditions such as travel sickness.
•You can use low frequency (<10 Hz)
programmes on acupuncture points,
to achieve similar effects to
acupuncture.
•With neurogenic pain (caused by
inflamed nerves) such neuralgia,
TENS may start by increasing the
pain. We recommend that you only
use TENS for these conditions under
medical supervision.
•You can safely use TENS as long as
it gives you pain relief. The effect
may wear off after a few hours (this
is called “accommodation”). If this
happens, take a break of an hour or
so before trying again. If you use
settings that cause muscle
movement for more than 40 minutes,
you may experience aching muscles
a few hours later.
5. CONTRAINDICATIONS,
WARNINGS &
CAUTIONS
In this manual:
A Contraindication is used
when a device should not be
used because the risk of use
clearly outweighs any foreseeable
benefits and may result in serious injury
or death.
A Warning is used when failure
to follow the instructions may
result in serious injury or death.
A Caution is used when failure
to follow the instructions may
result in a minor or moderate
injury, or damage to the device or other
property.
Notes are used to provide
clarification or
recommendation.
CONTRAINDICATIONS:
Do NOT use if you have a pacemaker
(or if you have a heart rhythm problem)
or with any electronic medical devices.
Using this unit with electronic medical
devices may cause erroneous
operation of the device. Stimulation in
the direct vicinity of an implanted device
may affect some models.
Do NOT use during the first three
months of pregnancy. It is not known
whether TENS may affect foetal
development.
Do NOT use on the abdomen in the
later stages of pregnancy. Stop using
immediately if you experience
unexpected contractions.
WARNINGS:
Do NOT use when driving, operating
machinery, or similar actions needing
muscular control. Loose electrode
pads, damaged leads, or sudden
changes in contact may cause brief
involuntary muscle movements.

8
Do NOT use to mask or relieve
undiagnosed pain. This may delay
diagnosis of a progressive condition.
Do NOT use if you have, in the area
being treated: active or suspected
cancer or undiagnosed pain with a
history of cancer. Stimulation directly
through a confirmed or suspected
malignancy should be avoided as it may
stimulate growth and promote spread of
cancer cells.
Do NOT use electrodes on the front of
the neck. Stimulation on the front of the
neck can affect your heart rate or cause
contraction of the throat.
Do NOT use electrodes across the
chest. Very strong stimulation across
the chest may cause an extra heartbeat
and/or rhythm disturbances to your
heart, which could be lethal.
Do NOT use Perfect TENS while
simultaneously connected to high
frequency surgical equipment as it may
result in burns at the site of stimulator
electrodes and possible damage to the
stimulator.
Do NOT use Perfect TENS in close
proximity (e.g. 1 m) to a shortwave or
microwave as this may produce
instability in the stimulator output.
Do NOT use electrodes near the thorax
as this may increase the risk of cardiac
fibrillation.
CAUTIONS:
Caution should be used if you have a
bleeding disorder as stimulation may
increase blood flow to the stimulated
region.
Caution should be used if you have
suspected or diagnosed epilepsy as
electrical stimulation may affect seizure
threshold.
Caution should be observed when
using the device at the same time as
being connected to monitoring
equipment with body worn electrode
pads. It may interfere with the signals
being monitored.
Caution should be used following
recent surgical procedures. Stimulation
may disrupt the healing process.
Caution Not intended for use in an
oxygen rich environment.
Caution Not intended for use in
conjunction with flammable
anaesthetics or flammable agents.
Caution The patient is an intended
operator.
Caution Do not service and maintain
the device while in use.
Caution Maintenance and all repairs
should only be carried out by an
authorized agency. The manufacturer
will not be held responsible for the
results of maintenance or repairs by
unauthorized persons.
If necessary, we will provide circuit
diagrams, component part lists or other
information that will assist authorized
service personnel to repair the device.
Caution The operator should not touch
the patient at the same time when
touching the battery output.
Caution Keep away from pets and
pests.
Caution Do not permit use by children
unable to understand the instructions or
persons with cognitive disabilities, i.e.;
Alzheimer’s disease or dementia.
Caution Keep away from children
under 5 years of age. Long cord -risk
of strangulation in infants.

9
Caution should be observed when
using the perfect TENS at high
strength settings. Prolonged use at high
settings may cause muscle injury or
tissue inflammation. The perfect TENS
is capable of delivering outputs in
excess of 10 mA (RMS) or 10 V
averaged over any period of 1 sec. This
is indicated by the yellow LED light on
the output socket.
DO NOT PLACE ELECTRODE PADS:
•On skin, which does not have normal
sensation. If the skin is numb too
great a strength may be used, which
could result in skin inflammation.
•On broken skin. The electrode pads
could encourage infection.
•On the front of the neck. This could
cause the airway to close, giving
breathing problems. May cause
sudden drop in blood pressure
(vasovagal response).
•Over the eyes. May affect eyesight
or cause headaches.
•Across the front of the head. Effect
on patients who have had strokes or
seizures is not known. May affect
your sense of balance. The effects of
stimulation on the brain are
unknown.
ELECTRODE PADS CAUTION:
Caution: Do not ignore any allergic
reaction to the electrode pads: If a skin
irritation develops, stop using TENS, as
this type of electrodes may not
be suitable for you. Alternative
electrode pads specially made for
sensitive skin are available (see E-696-
SS).
Caution: Do not use this device with
leads or electrode pads other than
those recommended by the
manufacturer. Performance may vary
from specification. Electrodes with
smaller surface area may cause tissue
irritation.
Caution: Do not use high intensity
settings if electrodes are smaller than
50x50mm.
Note: Electrode pads supplied
have no measurable latex
content.
TO KEEP YOUR DEVICE IN GOOD
WORKING ORDER, OBSERVE THE
FOLLOWING ADDITIONAL
CAUTIONS:
Caution: Do not immerse your device
in water or place it close to excessive
heat such as a fireplace or radiant
heater or sources of high humidity such
as a nebulizer or kettle as this may
cause it to cease to operate correctly.
Caution:Keep the device away from
sunlight, as long-term exposure to
sunlight may affect the rubber causing
it to become less elastic and crack.
Caution: Keep the device away from
lint and dust, as long-term exposure to
lint or dust may affect the sockets or
cause the battery connector to develop
a bad contact.
Caution:Temperature & Relative
Humidity of storage: -25°C to +70°C, 0
to 93% R.H. Temperature & Relative
Humidity of transportation: -2°C to
+70°C, 0% to 93% R.H.
Caution: There are no serviceable user
parts. Do not attempt to open or modify
the TENS unit. This may affect the safe
operation of the unit and will invalidate
the warranty.

10
Note: There are no known side
effect to TENS use and long-
term TENS use is not harmful.
6. INFORMATION ABOUT
THE PROGRAMME
SETTINGS
Each programme has its own
combination of Frequency and Pulse
Width settings which allow for different
sensations through the electrode pads
and suppress pain in different ways.
•Frequency (measured in Hz -
pulses per second)
PAIN GATE: A high frequency of 110
Hz is good at blocking pain signals.
ENDORPHINE RELEASE: A low
frequency of 4 or 10 Hz allows for the
release of endorphins, the body’s
natural morphine-like substances.
•Pulse Width (measured in μs -
millionths of a second)
The perfect TENS unit has pulse
widths of 50 to 250 μs. Generally
speaking, the higher the pulse width,
the more "aggressive" the stimulation
feels, and eventually, if the pulse width
is set high enough, it will usually elicit a
muscle contraction, which is typically
not the desired result with a TENS unit.
However, if the pulse width is too low,
the patient may not perceive the
stimulation. Pulse Rate is important
because different frequency settings
target different nerve groups and the
setting will determine if the "Gate
Theory" or "Endorphin Theory" of TENS
will be used.
•Constant and Burst Modes
Constant mode is when the sensation is
continuous versus Burst mode when
the sensation, as its name implies, is
one of on and off. Constant mode is
often used for acute pain via Pain Gate
Effect whereas Burst mode is useful in
chronic pain relief. Burst gives a
combination of Pain Gate and
Endorphin Release, but the squeezing
feeling may not be as comfortable. The
sensation in Burst is more of a
‘grabbing’, ‘clawing’ type and usually
more by way of muscle twitching than
with the high or low frequency modes.
The stimulation intensity will need to be
relatively high. In Constant mode, the
sensation is continuous and is more of
a tingling pins and needles type.
•Modulation Modes
Modulation is when either the
frequency or pulse width sweep across
range of settings. In modulation mode,
the machine delivers a less regular
pattern of TENS stimulation in an
attempt to reduce or minimise the
accommodation effects of regular,
patterned stimulation. This is potentially
most useful for patients who use TENS
for several hours a day, if for no other
reason than accommodation occurs at
a slower rate and therefore less
intensity adjustment may be required.
See programmes F and G.
•HAN Stimulation
Invented by Professor Han, it is an
alternating mode or shifting between
high and low frequencies; stimulation
works at a high frequency and a
relatively low pulse width; and a low

11
frequency and a relatively high pulse
width. This is thought to produce a
better analgesic effect and could be
used to relieve both acute and chronic
pain.
* F - The user increases the strength to the
desired level in the first 7 seconds. The
strength drops down 90% over a period of
6 seconds and then gradually starts
increasing again to the original setting over
a period of 6 seconds.
* G - The frequency starts at 2 Hz and after
every 3 minutes’ shifts to the next
frequency setting. After 21 minutes, it
returns back to 2 Hz and starts the cycle
over again.
Note: Specifications are nominal and
subject to variation from the listed values.
7. PROGRAMMES
7.1. PRESET PROGRAMMES
There is not one programme for a
particular condition, and the best choice
varies from one person to another, even
if they have the same type of pain.
Each user needs to select both the
programme and the positioning of the
electrode pads that is best for them.
You may need to try a few
positions/programmes before finding
the one that suits you.
If you are using TENS for the first time,
it is recommended that you start with
programme A, which gives the gentlest
stimulation.
The perfect TENS has 8 preset pain
relief programmes.
P=Pain Gate. Gives relief when being
used. Wears off after a few hours.
E= Endorphin Release. Builds up over
40 mins. Lasts several hours after use.
Programme A:
P- This is the gentlest programme. It is
advisable to use for your first trial of
TENS while you get used to the feeling
which offers tingling/pins and needles
sensation. Reduced pulse width is ideal
for treating nerve rich areas (tension
type headache, facial pain, neck pain,
post herpetic neuralgia, migraine).
Programme B:
E- This low frequency is also known as
Acupuncture-Like. Use on acupuncture
points. Pulsing or tapping sensation
associated with muscle contractions. It
Pr Output Frequency
Hz
Pulse
Width
μs
A Constant 110 50
B Constant 4 200
C Burst 100 in 2Hz
burst
200
D Constant 10 200
E Constant 110 200
F Strength
Modulated
110 200
G Frequency
Modulated
2-110 in 7
steps
200
H HAN
Alternating
100/2 100/200

12
is suitable to be used for chronic pains
such as back pain & arthritis, but not for
injured muscles.
Programme C:
P + E – This programme combines P
and E, and is thought to be the most
effective for radiating pain in arms and
legs and deep muscular pain
(Osteoarthritic pain in the knee, Sciatica
central pain).
This programme uses high frequency in
low frequency bursts. Some people
find the changes in stimulation
uncomfortable.
Programme D:
E- This programme provides
soothing/relaxing effects and is ideal for
treatment of nausea, travel and
morning sickness; most successful with
placing the electrode pads over the
wrist (acupuncture point C6). See the
instructions enclosed with the electrode
pads.
Programme E:
P- Stronger, more penetrating version
of programme A and a stronger feel.
Could be used everywhere except very
sensitive areas.
Programme F:
P- This programme continuously
modulates the pulse width and gives a
pleasant slow relaxing massage
sensation. The continuous change
helps prevent accommodation
occurring.
Programme G:
P- This programme constantly varies
the sensation, and is ideal for treating
chronic pain over long period (example
5+ hours). Neck, shoulder, Elbow pain,
Rheumatic pain, Lumbago, Hip pain,
Osteoarthritic pain in the knee.
Programme H:
P + E – This programme alternates
between low and high frequency every
3 seconds and gives 3 seconds of
tapping, followed by 3 seconds of
tingling sensation. The effective pain
relief is provided by a combination of P
and E. Some people find the changes
in stimulation uncomfortable.
7.2. MANUAL PROGRAMME
Manual Programme M:
Surprisingly little research has been
done on the importance of frequency.
Professor Han did research that
showed that Pincreased as the
frequency increased – but only tested
up to 100 Hz.
And that Edecreases as the frequency
increases.
So, E is less effective when the
frequency is >10 Hz and Pis less
effective when the frequency is <80 Hz.
Most clinical research on Phas been
done at 80 Hz or 100 Hz.
Many professional users believe that
the response to TENS varies between
individuals, and that you can get the
best response by choosing the
frequency that suits your nervous
system the best. They suggest that you
start at 80 Hz or 110 Hz, then try

13
different the frequency until you find
one that gives you better pain relief.
a. Press the Pkey until you reach
programme M.
b. Press the Tkey. The Hz symbol will
flash next to the number at the bottom
centre of the screen.
c. Press CH1+ or CH1-to adjust the
setting. You can select a frequency
from 2 to 150 Hz.
d. Press the Tkey again to save your
change and advance to the next setting
µs. You can select a pulse width from
50 to 250 µs.
e. Press the Tkey to select Cor B.
C= Constant B= Burst
f. Finally, you can select the Treatment
Timer. Continuous, 10, 20, 30, 40 or 60
minutes.
g. Press Tonce more to return to start
using.
See section 6 for more information on
the choice of settings.
7.3. PROGRAMME USAGE
TENS can be used for as long as it is
necessary. Continuous treatment is
fine, but the electrode pads should be
repositioned regularly (at least every 12
hours) to allow the skin to be exposed
to the air.
The Endorphin Release programmes
work better when the strength is high
enough to cause small muscle
contractions. Best results are achieved
with a session duration between 20 and
40 minutes. Longer use may cause
muscle ache.
8. ELECTRODE PADS
8.1. PAD POSITIONING
The electrode pads must always be
used in pairs (two electrode pads on
each channel), so that the signal can
flow in a circuit.
•TENS works one vertebra at a time.
You need to stimulate the sensory
nerves that enter the spine at the
same level as the nerve carrying
your pain. Since you don’t know
exactly where your nerves are, the
easiest way is to apply the electrode
pads around/near the source of the
pain.
•TENS activates the nerves best if it
travels along the nerve rather than
across it. So place one pad further
from the spine than the source of the
pain, and one closer.
•The nerves wrap around the limbs
and torso, so you may have to try a
few positions before you get the best
effect.
•If the pain is in, or close to, your
spine you can place one pad either
side of the spine.
•You may feel more sensation in one
pad than the other. This is normal –
it depends on where the electrode
pads are in relation to your nerves.
For areas that are difficult to reach, why
not ask a friend to help you attach the
electrode pads?
CH1
CH2
Hz

14
Always check that the unit is OFF
before attaching or removing
electrode pads.
Perfect TENS resets strength to zero
if the pad or lead is disconnected
from your body. This is to prevent
sudden changes in sensation when
the pad is re-connected.
Note: See examples of
positioning in the instructions
enclosed with your electrode
pads.
8.2. PAD ADVICE
•The electrode pads supplied are
reusable but for single patient use.
The adhesive is a peelable hydrogel
(water based).
•In order to obtain the best
conductivity through the electrode
pads always ensure that they are in
good condition and tacky.
•Before use make sure your skin is
clean and dry.
•Peel the electrode pads from their
protective plastic shield by holding
and lifting one corner of the pad and
pulling. Do not pull on the pigtail wire
of the pad.
•After use always replace the
electrode pads on the plastic liner
and replace them in the re-sealable
plastic bag.
•If the electrode pads dry out, then it
is best to buy a replacement pack. In
an emergency, it may be possible to
restore some of the tackiness of the
pad by adding a tiny drop of water on
each pad and spreading around. If
too much water is added, the
electrode pad will become too soft. If
that happens then it is suggested in
order to try and re-establish some
adhesiveness, to place them sticky
side up in a refrigerator for a few
hours.
•In very hot weather the gel on the
electrode pads may become soft. In
such cases place them, still on their
plastic liners and in their pouch into
a fridge until they return to their
normal condition.
•The electrode pads provided are
latex-free.
•Replace the electrode pads when
they lose their stickiness.
Poor connection may cause
discomfort and skin irritation.
•Storage life of an unopened pack of
electrode pads is 2 years. This may
be affected by very high
temperatures or very low humidity.
9. CONTENT
The pack contains:
•1 x Perfect TENS pain relief unit
•2 x Lead wires (L-CPT)
•4 x 50x50 mm electrode pads (E-
CM5050)
•2 x AA 1.5V alkaline batteries
•1 x Detachable belt clip
•1 x Storage pouch
•1 x Manual instruction

15
10. UNIT INFORMATION
10.1. CONTROLS & DISPLAY
Programme
selected
Channel 2
strength
Time
selected
Channel 2
strength UP
Programme
selector
Channel 2
strength DOWN
Timer and
manual setting
selector
Channel 1
strength DOWN
Channel 1
strength UP
Low Battery
Keypad Lock
Channel 1
strength
ON/OFF
Output active
indicators

16
10.2. OPERATING
INSTRUCTIONS
ON/OFF
To turn the unit ON, press the
ON/OFF button on the top of the unit
and hold for 3 to 5 seconds until the
display shows.
To turn the unit OFF, press the ON/OFF
button on the top of the unit and hold for
3 to 5 seconds until the display stops
The unit will turn OFF automatically:
•When the Timer reaches zero,
•If it is left at zero strength for more
than 5 minutes.
The unit will start with the programme
you used last.
At first use, or after changing batteries,
the display shows that the unit is
automatically set in Programme Aat
zero strength.
Note: Always check unit is
OFF before applying or
removing electrode pads.
The backlight will turn off 10 seconds
after the last button press.
On the front of the unit there are six
buttons:
STRENGTH CONTROLS
The buttons marked CH1+, CH1-,
CH2+, CH2-are the strength controls.
The left-hand buttons
change strength in the
left-hand lead, CH1,
and the right-hand
buttons change the
right-hand lead, CH2.
To increase strength in steps of 1 mA,
press and release the top part of the
two channel buttons, marked CH1+ and
CH2+.
The strength levels are shown on the
LCD.
The strength control buttons will not
operate until the unit is properly
connected to you. Perfect TENS
detects a disconnection and
automatically returns the strength to
zero.
The unit has 60 levels of strength. If you
hold down the button for 3 to 5 seconds,
the strength will start scrolling.
You may feel nothing over the first few
presses. Continue pressing until the
sensation is strong but comfortable.
Further increases during use may be
necessary if your body becomes used
to the sensation.
To decrease the strength, press and
release the lower part of the buttons
marked CH1- and CH2-.
The yellow LED on the output socket
indicates that there is an active output.
The display will remain on for 5 seconds
after the plug is removed.
PROGRAMME CONTROL
The button marked Pis the
programme control. The
perfect TENS has eight different,
specially developed programmes
lettered Ato H, plus a manual
programme M. When the unit is first
switched on it automatically enters
programme A.
Each time you press and release the P
button, the programme changes and
the letter is shown on the LCD.
P
CH1+
CH1-
CH2+
CH2-

17
Each time you change the programme,
the strength level reverts back to zero.
This is a safety feature to alleviate any
sudden feeling of a surge, as each
programme gives a different sensation.
TREATMENT TIMER
The button marked T can be
used to set the session
duration and to select
manual parameters for adjustment.
When you switch the unit on, it is
automatically set at Continuous,
(displayed as C) in all programmes but
B, C& H, which means that the unit will
continue functioning until you switch it
off.
When you press the T button, the clock
symbol will flash.
You can set session times of 10, 20, 30,
40 or 60 minutes with the CH1+ and
CH1-buttons.
Press Tagain to save your selection.
The LCD shows the session duration
next to the clock symbol. The unit
automatically counts down the minutes
set and switches off when it reaches 0.
LOW BATTERY
An empty battery symbol will
show when you need to
change the batteries. The unit
will shut down about 2 minutes after
this.
KEYPAD LOCK
If you do not press any keys
for 30 seconds, the keypad
will lock so that only the keys
marked CH1-or CH2-will work. This is
to avoid accidental changes in setting.
To unlock, press either CH1-or CH2-
keys.
OPEN CIRCUIT CUTOUT
If the perfect TENS is not correctly
connected to your body, the strength in
the channel which is not properly
connected will automatically reset to
zero. This is to prevent sudden changes
if a broken connection is re-made.
MEMORY
The perfect TENS has a Memory with
three functions:
1) Programme Retention. When you
switch the unit on, it will automatically
start in the programme which was being
used when it was switched off.
2) Usage. Press Tand CH2-together
and hold down for 3 to 5 seconds. The
display will show the number of times
used and duration in hours used.
Press the same buttons again to return
to normal controls.
3) Memory Reset. To reset memory to
zero, hold down the Tand CH1-buttons
together for 3 to 5 seconds.
Number of
uses
T
Time used
in hours

18
11. SETTING UP AND
USING THE PERFECT
TENS
11.1. INSTALLATION OF
BATTERIES
1) Remove belt clip by sliding down.
2) Remove battery cover by pulling on
tag.
3) Insert batteries.
Ensure that the batteries are inserted
the right way as shown in battery
compartment and that the ribbon is
behind them.
4) Replace battery cover and belt clip.
When the batteries are
running low, a low battery
indicator will show on the
screen and it is important to change the
batteries as soon as possible.
Rechargeable batteries
The unit will work with rechargeable
batteries, but the display may appear
dim.
Caution: Remove batteries from your
perfect TENS if the unit is unlikely to be
used for a long period. Some types of
batteries may leak corrosive fluid.
Battery Life
Batteries should last at least 15 hours
at 50 mA, 300 μs, 50 Hz.
Unused batteries have a nominal shelf
life of 3 years, but will usually last longer
than this.
Battery Warnings
Do NOT pierce, open, disassemble, or
use in a humid and/or corrosive
environment.
Do NOT expose to temperatures over
60°C(140F).
Do NOT put, store or
leave near sources of heat, in direct
strong sunlight, in a high temperature
location, in a pressurized container or in
a microwave oven.
Do NOT immerse in water or sea water
or get wet.
Do NOT short-circuit.
Do NOT connect the device unless the
battery cover is in place.
If battery leakage occurs and comes in
contact with the skin or eyes, wash
thoroughly with lots of water and
immediately seek medical attention.
Warning: Keep batteries out of the
reach of children to prevent them from
swallowing them by mistake. If
swallowed by child, contact doctor
immediately.

19
Caution NEVER attempt to
recharge an alkaline battery.
Risk of explosion.
Caution Do not mix old, new or
different types of batteries as
this may lead to battery
leakage or low battery indication.
Disposal: Always dispose of batteries
and device responsibly according to
local government guidelines. Do not
throw batteries onto a fire. Risk of
explosion.
11.2. CONNECTING LEAD
WIRES
Insert the lead wire plug into the base of
the unit.
Attaching the electrode pads to the
lead wire.
Push the pin ends firmly into the pigtail
ends of the electrode pads.
The lead wires may be damaged by
rough handling, and should be treated
with care.
Lead wire colour coding.
The ends of the lead wires are coloured
white or red. This coding is provided for
some professional uses. For most
purposes, the orientation makes no
difference, and you can ignore this
colour coding.
11.3. PREPARING FOR
SESSION
1) Before use make sure your skin is
clean and dry.
2) Place the electrode pads on the skin,
see section 8.
3) You can use your TENS for several
hours, you can attach the unit to your
belt using the belt clip or hang it around
your neck using a neck cord (not
included). For safety, use thread or
wool that will snap easily if the unit
snags on something.
4) You can safely lean on the electrode
pads. The sensation might change.
Warning: Ensure the perfect
TENS is switched OFF before
applying the electrode pads on
the skin.
11.4. TREATMENT SESSION
1) Press and hold the ON button on the
control unit for 3 to 5 seconds to switch
the control unit on.
When switched on for the first time, the
perfect TENS will automatically select
the programme A. Next time, it will
automatically select the programme
you were using the last time it was
switched off.
2) You can select from the 8 preset
programmes or the manual
programme. Details in section 7 will
help you identify the best programme to
suit you.
3) With the required programme
selected, you can adjust the intensity of