Omron HV-F311 User manual

5655010-5D
Issue Date: 2022-12-05
19F1534
Electronic Nerve Stimulator
HV-F311
Instruction Manual
5655010-5D_HV-F311-AU_IM_M01_221205.pdf

1
Table of Contents
Before Using the Device
Introduction .............................................2
Important Safety Precautions and
Warnings .................................................4
Know Your Device................................. 11
Package Contents............................. 11
Optional Medical Accessories .......... 11
Buttons and Their Functions............. 12
Inspect Device and Charge Battery ..... 13
STEP 1 – Connect the AC Adapter to
the Jack on the Device.......13
STEP 2 – Insert the Power Plug into
an Electrical Outlet ........... 13
Battery Icon....................................... 14
STEP 3 – Unplug the Power Plug and
the AC Adapter Jack once
the Battery is Fully
Charged ............................ 14
Operating Instructions
Assembly Steps .................................... 15
STEP 1 – Prepare Pads.................... 15
STEP 2 – Place Gels onto the
Pads.................................. 15
Get Started with Your Therapy ............. 16
STEP 1 – Attach the Pads to the
Body.................................. 16
STEP 2 – Pad Placement ................. 17
STEP 3 – Pick your Preferred
Therapy.............................20
STEP 4 – Pick Heat Setting.............. 21
STEP 5 – Pick 1 out of 9 TENS
Modes ...............................22
STEP 6 – Select the Preferred
Intensity Level (1 low -
20 high) .............................25
How to Manage and Reduce Your
Pain .......................................................26
When should I start therapy?........ 26
Get to your pain early....................26
How long should I use it? .............26
When to stop using the device?.... 26
Maintenance
Maintenance .........................................27
Maintenance..................................27
Wiping the Dirt .............................. 27
Storage.......................................... 28
Service ..........................................29
Troubleshooting......................................30
Technical Data.........................................35
Guidance and Manufacturer’s
Declaration ..............................................39

2
Introduction
Thank you for purchasing the OMRON
Electronic Nerve Stimulator.
In order to use the device safely, read the
complete manual carefully before using the
device for the rst time.
Keep this instruction manual in a convenient
place or store with the device for future
reference.
This box contains the following components:
• Main Unit
•
Cord with Pads
• Pad Holder
• Warranty Card
• 2 Pairs of Gels
• Instruction Manual
• AC Adapter
How does TENS and HEAT work?
Physical therapists have been using the
combination of heat and TENS for decades.
The HEAT warms and relaxes the muscle
for soothing relief while improving the
blood circulation. OMRON Electronic
Nerve Stimulator uses Triple Action
TENS (Transcutaneous Electrical Nerve
Stimulation) technology that helps to:
- block the pain message
- trigger the release of endorphins (natural
pain killers)
- improve the blood circulation (as result of
repeated muscle contracting and relaxing)
Intended Use
Medical purpose
OMRON Electronic Nerve Stimulator
intended for reducing and relieving muscle,
nerve and joint pain, stiffness, fatigue
and numbness in the back, arms, legs,
shoulders and feet by applying electrical
nerve stimulation to the surface of the skin
near the site of the pain.
The Electronic Nerve Stimulator offers both
soothing heat and relieves pain using TENS
technology. It should be applied to normal,
healthy, dry, and clean skin of adult patients.

Introduction
3
Any of the modes can safely be used
on body parts or pains described in this
manual. Just nd one that feels good and
is comfortable for your pain. It can be
successfully used in conjunction with any
other pain treatment or medication on the
advice of your healthcare professional.
Since the 1970s, pain relief based on TENS
has been widely used by many healthcare
professionals, such as physiotherapists and
pain specialists.
Intended User
This device is intended to be operated by
adults who can understand this instruction
manual. It is intended for home use.

4
Important Safety Precautions and Warnings
Read the Important Safety Information
in this instruction manual before using
this device.
Follow this instruction manual thoroughly for
your safety.
Danger
Improper use may cause danger
resulting in death or serious injury.
These are situations in which the
device should not be used.
Do not use this device with these other
devices:
• If you have a pacemaker,
implanted debrillator, or other
implanted metallic or electronic
device. Such use could cause
electric shock, burns, electrical
interference or death.
• Together with another TENS device.
• Together with a life-supporting medical
electronic device such as an articial heart
or lung or respirator.
• In the presence of or when attached to
the body, electronic monitoring equipment
(e.g. cardiac monitors, ECG alarms),
which may not operate properly when the
electrical stimulation device is in use.
• Simultaneous connection of a patient to a
high frequency surgical Medical Electronic
equipment may result in burns at the site
of the stimulator electrodes and possible
damage to the stimulator.
• Operation in close proximity (e.g. 1 m) to a
shortwave or microwave therapy Medical
Electronic equipment may produce
instability to the stimulator output.

Important Safety Precautions and Warnings
5
Warning
Indicates a potentially hazardous
situation which, if not avoided,
could result in death or serious
injury.
Consult with your healthcare professional
before using this device under these
conditions.
• The device may cause lethal rhythm
disturbances in certain susceptible
individuals. If you have had a recent
surgical procedure, the stimulation may
disrupt the healing process.
• If you have had medical or physical
treatment for your pain.
• If you have suspected or diagnosed heart
disease or epilepsy.
Do not use on these individuals
• Pregnant women.
• Do not use on children under 15 years
old because this device has not been
evaluated for pediatric use.
• Keep out of the reach of young children.
The electrode cord could cause
strangulation and the device contains
small pieces that may be swallowed.
• Persons incapable of expressing their
thoughts or intentions.
• Persons incapable of operating the device
by themselves.
• Use caution if you have a tendency to
bleed internally, such as following an injury
or fracture.

Important Safety Precautions and Warnings
6
Never apply the pads to these body areas:
The head, the mouth, or any area
of the face.
The neck or any area of the
throat because this could cause
severe muscle spasms resulting
in closure of the airway, difculty
in breathing, or adverse effects on
heart rhythm or blood pressure.
Do not use near the heart, or on
genital area.
Both sides of the thorax
simultaneously (lateral or front
and back), or across your chest
because the introduction of
electrical current may cause
rhythm disturbances which could
be lethal.
On both legs at the same time
because this may cause cardiac
disturbance.
On the bottom of both feet at
the same time because this may
cause cardiac disturbance.
Open wounds or rashes or over
swollen, red, infected or inamed areas
or skin eruptions (such as varicose
veins, phlebitis, thrombophlebitis and
thrombosis), or on top of or close to
cancerous lesions, or over areas of skin
that lack normal sensation.
Do not use this device during these
activities
• When in the bath or shower.
• While sleeping.
• While driving, operating machinery, or
during any activity in which electrical
stimulation can put you at risk of injury.
• While exercising or sweating.

Important Safety Precautions and Warnings
7
Warnings while using the device
• Do not use this device on or near any
other heating device, heating element.
• Do not use this device under a blanket.
• Do not use heat on any muscle or joint
which has swelling or edema. It may
worsen the pain or condition.
• Do not use on sensitive skin areas or in
the areas with poor blood circulation.
• Do not use heat function if you are
a patient with a lack of temperature
sensation.
• If used on the elderly, use caution due to
more sensitivity of the skin.
• If the product feels too hot, stop use
immediately.
• Do not plug the cord with pads into any
other device that is not an Electronic
Nerve Stimulator.
• Do not modify this device.
• Use this device only with OMRON
supplied AC Adapter, cord and
accessories.
• If your pain does not improve, becomes
seriously chronic or severe, or continues
for more than 5 days, stop using the
device and consult your healthcare
professional.
• Pain is a warning from the body that
something is wrong.
• If you experience adverse reactions from
the device, stop using it.
Warnings regarding the cord
• Do not pull on the cord during treatment.
• Do not bend or pull the end of the cord.
Warnings regarding the pads
• Apply pads only to normal, intact, clean,
healthy skin.
• If you experience any skin irritation or
redness after a session, do not continue
stimulation in that area of the skin.
• The pads can only be used with OMRON
gels.
• The pad with gel should not come in
contact with any water during therapy.
• Do not apply the pads incorrectly or
by using excessive pressure, because
discomfort or skin burns may occur.

Important Safety Precautions and Warnings
8
• Never bend or fold the pads.
• Do not wash the cord with pads with
running water.
• Before use, inspect the cord with pads for
open wires or any damage. If damaged,
do not use and replace immediately. The
damaged cord with pads may cause skin
burns or a re.
• Replace the cord with pads when broken
or damaged.
AC Adapter Handling and Usage
• Never plug in or unplug the AC adapter
from the electric outlet with wet hands.
Battery Handling and Usage
• To prevent the risk of overheating, re or
explosion:
- Do not puncture, crush, disassemble or
modify the device.
- Do not throw the device into re.
- Do not recharge, use, or leave the device
in any high temperature environment
such as in a location near a re or in
direct sunlight.
• The device contains a built-in
rechargeable Lithium-Ion battery which
must be disposed of properly. Dispose
of the device according to applicable
local government regulations.
Caution
Indicates a potentially hazardous
situation which, if not avoided,
may result in minor or moderate
injury to the user or patient, or
cause damage to the equipment
or other property.
Precautions regarding the pads
• Do not move the pads to another location
while the device is on.
• Make sure the components are connected
well and the pads are xed on the part of
the body you wish to treat or the therapy
may not be effective.
• Pads should not touch any metal object,
such as a belt buckle, necklace, or other
metal worn under clothing.
• Do not share pads with another person.
This may cause a skin irritation or
infection. Pads are intended for use by one
person.

Important Safety Precautions and Warnings
9
• Do not leave pads attached to the skin
after treatment.
• To avoid damage to the adhesive surface
of the pads, put the pads only on the skin
or on the plastic pad holder provided.
• Always place clean pads in accordance
with illustrations provided (Refer to pages
17-19, Pad Placement).
• Do not apply ointment or any solvent to the
pads or to your skin because it will disrupt
the pads from functioning properly.
• The pads do not work correctly without the
gels. For safety and effectiveness, they
must be used together.
• Place pads on either side of the pain, not
directly on the pain.
• Place pads at least 2.5 cm apart for
optimal results.
• For therapy to work, always use two pads.
• Do not overlap pads or put them on top of
each other.
• Do not apply the pad with wet hands, and
do not apply the pads that are wet.
Caution while using the device
• Use caution if stimulation is applied over
the menstruating uterus.
• If the device is not functioning properly
or you feel discomfort, immediately stop
using the device.
• Do not use for any other purpose except
for what it is intended for.
• Do not place in a room with high humidity,
such as a bathroom. This will damage the
device.
• Do not use the device without proper
lighting. You may not be able to operate
the device successfully.
• While using this device, make sure that no
mobile device or any other electrical device
that emit electromagnetic elds is within
30 cm. This may result in degradation of
performance of the device.
Cautions regarding the cord
• Do not insert the cord plug into any place
other than the jack on the device.
• When pulling out the cord from the device,
hold the plug and pull.

Important Safety Precautions and Warnings
10
General precautions
• The long-term effects of electrical
stimulation are unknown.
• TENS is not effective in treating the
original source or cause of the pain,
including headache.
• TENS is not a substitute for pain
medications and other pain management
therapies.
• TENS is a symptomatic treatment and, as
such, suppresses the sensation of pain
that would otherwise serve as a protective
mechanism.
• Ensure that this device has acclimated
to room temperature before using. Using
this device after an extreme temperature
change could lead to an improper
operation. OMRON recommends waiting
for approximately 2 hours for the device
to warm up or cool down when the
device is used in an environment within
the temperature specied as operating
conditions after it is stored either at the
maximum or at the minimum storage
temperature. For operating, storage
conditions, refer to “Technical Data” on
page 35.
Possible adverse reactions
• Do not use to treat one region for extended
periods of time (more than one 30-minute
session, up to 3 times/day). Muscles in
that region may become exhausted and
sore.

11
Package Contents
Main Unit Cord with Pads Pad Holder
Gels (2 pairs) AC Adapter (HHP-OH11) Instruction Manual
Warranty Card
Optional Medical Accessories
Product description Model
Gels
(Contents: 4 pairs) HV-PAD-3AP
Know Your Device

Know Your Device
12
Buttons and Their Functions
Therapy
choice
TENS
modes
Minutes
remaining
of Therapy
Heat
setting
Intensity
level
Battery icon
Pad icon
If the pad dislodges,
will display.
Jack for cord
with pads
AC adapter
jack
[SET/START]
button
Press to
confirm the
therapy, heat
setting and
mode and/or to
start the
therapy.
Arrow buttons
Set according to your needs.
Press ▲ (up) or ► (right) for higher TENS
intensity or heat.
Press ▼ (down) or ◄ (left) for lower TENS
intensity or heat.
Orange glow
The orange light
is on when the
heat function is
active.
[Power]
button
Press once to
turn the
power on and
press again
to turn the
power off.

13
Inspect Device and Charge Battery
Before using, check that:
1. The cord is not broken.
2. The gels are not damaged.
3. The connection between cord
and pad is not damaged.
4. The device is intact.
Before rst time use:
We recommend charging the battery to a
full 100 % charge. It takes about 5 hours to
charge once battery is empty.
Once fully charged, the battery will last for
4 times of 30 minutes uses on average.
Note: If you have not used the device for
3 months, recharge the battery.
STEP 1 – Connect the AC Adapter
to the Jack on the Device
Rechargeable battery inside
of device.
STEP 2 – Insert the Power Plug
into an Electrical Outlet
Electrical Outlet
• When charging the battery, the battery
icon blinks on the display.
• When fully charged, the battery icon
will display shortly on the display, then
the power will turn off. Press the
[Power] button to see if the battery is fully
charged.

Inspect Device and Charge Battery
14
Battery Icon
Note: While the battery is charging, the
device does not work.
Display Contents
Battery charge is full.
Battery charge is half.
Battery is close to low.
Battery is depleted.
STEP 3 – Unplug the Power Plug
and the AC Adapter Jack once
the Battery is Fully Charged

15
Assembly Steps
STEP 1 – Prepare Pads
Put the cord plug into the jack on the bottom
left side of the device.
Note: Do not turn the device on until pads
are on your skin.
STEP 2 – Place Gels onto the
Pads
• Remove the gels from the sealed plastic
bag.
Note: Each gel has a lm on each side of
the gel. One lm is non-printed, the
other side has text (“SKIN”).
• Remove the non-printed
side of plastic lm.
• Place the gels onto the black
side of the pads.
Note:
• Make sure the gel lays evenly and
securely with no bubbles, bending or
missing pieces.
• The “SKIN” printed side of
plastic lm is on top.
Gel
Non-printed side of
plastic film
Pad
Gel
“SKIN”
printed side
of plastic film

16
STEP 1 – Attach the Pads to the
Body
• Remove the “SKIN” printed side of plastic
lm and place the pads onto the skin.
Note:
• Wipe all lotions/oils/sweat/ointment and
dry the applicable skin area.
• Make sure that pads stick to the skin.
For optimal therapy:
Caution
• Place pads on either side of the pain,
not directly on the pain.
• Place pads at least 2.5 cm apart for
optimal results.
• For therapy to work, always use two
pads.
• Do not overlap pads or put them on top
of each other.
Note: Unplug the AC Adapter when using
the device.
Get Started with Your Therapy

Get Started with Your Therapy
17
STEP 2 – Pad Placement
LOWER BACK
Attach both pads on the lower back
according to your pain.
Place pads on muscle of the back, not on
spine, for optimal therapy.
LOWER BACK
Attach 1 pad below
and above the
region in pain, both
on same side.
ARM
Attach both pads
on either side of the
area with pain.
JOINT
(ELBOW)
Attach both pads
on either side of the
joint with pain.
LEG
(HIP & THIGH)
Attach both pads
on either side of the
area with pain.

Get Started with Your Therapy
18
STEP 2 – Pad Placement (continued)
Outside
Inside FOOT
(ANKLE)
Attach the pads on the left for pain on the outside of your ankle/foot.
Attach the pads on the right for pain on the inside of your ankle/foot.
Warning
• Do not apply the pad on the bottom of both feet at the same
time because this may cause cardiac disturbance.
LEG
(CALF)
Attach both pads on the calf with pain.
Warning
• Do not apply the pads on both legs at the same
time because this may cause cardiac disturbance.
JOINT
(KNEE)
Attach both pads above the
knee or above and below the
joint with pain.

Get Started with Your Therapy
19
SHOULDER
Attach both pads on the shoulders
according to your pain.
SHOULDER
Attach 1 pad on the front and on
the back of your shoulder.
STEP 2 – Pad Placement (continued)
Warning
• Do not apply the pads on both sides of the thorax simultaneously (lateral or front and
back), or across your chest because the introduction of electrical current may cause
rhythm disturbances which could be lethal.