JOHARI DIGITAL T250 User manual

T250
18Apr2016
Manufactured by:
JOHARI DIGITAL HEALTHCARE LTD.
G-582-584, EPIP, Boranada, Jodhpur 342008 Rajasthan, India
Tel : [phone]
www.joharidigital.com

Precautionary instructions
The precautionary instructions found in this section and throughout this
manual are indicated by specific symbols. Understand these symbols and
their definitions before operating this equipment. The definitions of these
symbols are as follows:
Text with a “CAUTION” indicator will explain possible
Safety infractions that could have the potential to
cause minor to moderate injury or damage to
equipment.
Text with a “WARNING” indicator will explain
possible Safety infractions that will potentially
cause serious injury and equipment damage.
Text with a “DANGER” indicator will explain possible
safety infractions that are imminently hazardous
situations that would result in death or serious
injury.
NOTE: Throughout this manual, “NOTE” may be found. These Notes are
helpful information to aid in the particular area or function being described.
Nomenclature: The following are the symbols used in manual and sticker:
Hardware symbols:
Electrical Type, Type BF
CLASS II symbol
DC Input Symbol
CAUTION
WARNING
DANGER
1.
2.
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8.
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INSTRUCTIONS FOR THE USER OF
ELECTROTHERAPY
1.1 Warnings
1.2 Danger
1.3 Indications for use
1.4 Contraindications
1.5 Precautions
1.6 Adverse reaction
INTRODUCTION
DESCRIPTION
ACCESSORIES
SPECIFICATIONS
CONTROLS AND FUNCTIONS
HOW TO OPERATE T250
ELECTRODE CARE AND SELECTION
CONNECTING THE DEVICE
BATTERY INFORMATION
CLEANING THE DEVICE
MAINTENANCE
TROUBLESHOOTING
SUGGESTED ELECTRODE PLACEMENT CHART
WARRANTY
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4
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5
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Please read this instruction manual carefully before using T250 because it
is unsafe to start using the device before reading the whole manual. The
instructions on the following pages will show you how to use and care for
your T250 in a general manner. You should be particularly familiar with the
prescription information and precautions before proceeding.
CAUTION: This device must be used only under the continued
supervision of a physician or licensed practitioner in the state
he/she practices.
DO NOT operate this unit in an environment where other devices are being
used that intentionally radiates electromagnetic energy in an unshielded
manner.
This unit should be operated in temperatures between 15°C and 45°C,
transported and stored in temperatures between 5°C and 55°C, with
Relative Humidity ranges from 30% to 60%.
Inspect connectors before each use.
The T250 system is not designated to prevent the ingress of water or liquids.
Ingress of water or liquids could cause malfunction of internal components
of the system and therefore create a risk of injury to the patient.
1. INSTRUCTIONS FOR THE USER OF ELECTROTHERAPY
1.1 Warnings:
lThe long-term effects of chronic electrical stimulation are unknown.
lStimulation should not be applied over the carotid sinus nerves,
particular in patient with known sensitivity to the carotid' sinus reflex.
lThe TENS electrode should not be applied over the neck or mouth, or
anywhere else on the head. If TENS stimulation is applied over the
neck or mouth especially, severe spasm of the laryngeal and
pharyngeal muscle may occur and the contraction may be strong
enough to close the airway or cause difficulty in breathing.
lInspect connectors before each use.
lThe T250 system is not designated to prevent the ingress of water or
liquids. Ingress of water or liquids could cause malfunction of internal
components of the system and therefore create a risk of injury to the
patient.
lStimulation should not be applied transthoracically in that the
introduction of electrical current into the heart may cause cardiac
arrhythmias.
lStimulation should not be applied over swollen, inflected, or inflamed
areas or skin eruption, e.g. phlebitis, thrombophlebitis, varicose veins,
etc.
lStimulation should not be applied over, or in proximity to, cancerous
lesion.
lThis device should not be applied on the anterior aspect of the chest
(i.e. thorax)
lTo be used under doctor prescription and control (not suggestion but
obligation).
lIf system persist, contact doctor.
lTo be used exclusively on not injured skin.
lTo be used exclusively with adaptor from manufacturer.
lTo be used exclusively with electrodes from manufacturer.
lThe electro stimulator is not able to act on the origin of the pain.
1.2 Danger:
lImproper handling or use of this device may result in a high risk of death
or serious injury.
lStimulus delivered by the TENS waveforms of this device, in certain
configurations, will deliver a charge of 25 micro coulombs (µC) or
T250INSTRUCTION MANUAL T250INSTRUCTION MANUAL

greater per pulse and may be sufficient to cause electrocution.
Electrical current of this magnitude must not flow through the thorax
because it may cause cardiac arrhythmia.
lPatients with an implanted Neurostimulation device must not be
treated with or be in close proximity to any shortwave diathermy,
microwave, diathermy, therapeutic ultrasound diathermy, or laser
diathermy anywhere on their body. Energy from diathermy (shortwave,
microwave, ultrasound and laser) can be transferred through the
implanted Neurostimulation system, can cause tissue damage, and
can result in severe injury or death. Injury, damage, or death can occur
during diathermy therapy even if the implanted Neurostimulation
system is turned "off'.
lHandle clean, and dispose of components and accessories that have
come in contact with bodily fluids according to National, Local and
Facility rules, regulations and procedures.
lIn the event of battery cell rupture or leakage, handle battery wearing
neoprene or natural rubber gloves. Contents of a ruptured or leaking
battery can cause respiratory irritation. Hypersensitivity to nickel can
cause allergic pulmonary asthma. Contents of cell coming in content
with skin can cause skin irritation and/or chemical burns.
lNever, under any circumstances, open the battery or cells. Should an
individual cell from a battery become disassembled, spontaneous
combustion of the negative electrode is possible. There can be a delay
between exposure to the air and spontaneous combustion.
lChange the battery according to the instructions found in this manual.
Do not reverse the polarity of the battery. Doing so can increase the
individual cell temperature and cause leakage or cell rupture.
lNever dispose of battery in the fire. Never short circuit the battery. The
battery may explode, ignite, leak or get hot causing serious personal
injury.
lDispose of batteries according to national, state and local codes and
regulations.
1.3 Indication for Use :
T250 is indicated to be used for Symptomatic relief and management of
chronic intractable pain and/or as an adjunctive treatment in the
management of post-traumatic and post-surgical acute pain.
1.4 Contraindications:
lT250 must not be used by Pregnant Woman, Patients with Metallic
Prosthesis / Implantable Devices & Patients with Cardiac Problems.
lT250 must not be used near the Eyes, Genitals and Transcerebral Area.
1.5 Precautions:
lCaution should be used for patients with suspected or diagnosed heart
problems.
lThe T250 may be susceptible to interference originating from short-
wave diathermy units operating in close proximity to it (aprrox 3m). Avoid
operating the T250 adjacent to and simultaneously with operating
short-wave devices.
lCaution should be used for patients with suspected or diagnosed
epilepsy.
lCaution should be used in presences of following:
lWhen there is a tendency of hemorrhage following acute
trauma or fracture.
lFollowing recent surgical procedures when muscle contraction
may disrupt the healing process.
lOver the menstruating or uterus.
lOver area of the skin which lack normal sensation.
lSome patients may experience skin irritation or
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hypersensitivity due to the electrical stimulation. The irritation can
usually be reduced by using an alternate electrode placement.
1.6 Adverse Reaction:
Skin irritation and slight burns beneath the electrodes have been reported
with use of TENS devices.
lTENS electrode placement should be based on the guidance of the
prescribing physician.
lT250 should be kept out of the reach of children.
lThe T250 should be used only with the leads and electrodes
recommended for use by the manufacturer.
lThe T250 should not be used while driving, operating machinery, or
during any activity in which involuntary muscle contraction may put the
user at undue risk of injury.
T250 is a microcomputer controlled two channel portable unit. T250 has
been designed by engineers with years of expertise and knowledge in the
medical device industry, specifically electrical stimulation. T250 is the
result of extensive research in the area of electric muscle stimulation
therapy.
2. INTRODUCTION
T250 is portable transcutaneous electrical nerve stimulation device. It has
three modes viz. (i) TENS Burst (ii) TENS Normal (Conventional) and (iii)
TENS Modulation. It provides easy mode selection through the Mode
Selector switch and the user can select any one of the available modes
through it.
3. DESCRIPTION
T250 comes complete with all the necessary accessories and below is a list
of items that are included:
4. ACCESSORIES
S. No. Particulars Quantity
Lead Wire (2 pole)
Length 1 mtr.
Self Adhesive Electrodes
(Size: 2” X 2”)
Instruction Manual
Carry Bag
9V Battery
1. 02
2. 04
3. 01
4.
6.
01
01
T250INSTRUCTION MANUAL T250INSTRUCTION MANUAL
Adaptor
5. 01

SYSTEM SPECIFICATIONS:
5. SPECIFICATIONS
Length
Width
Height
Standard Weight
Power (T250unit)
Battery
Input
Electrical Type
Electrotherapy
Operating temperatures
Storage temperatures
IP Grade
T250 Unit
9.3cm (3.70”)
6.4cm (2.54”)
3.3cm (1.3”)
Approx 220 gms. (0.5 lbs)
:
:
:
:
+9 Volts Battery /
9 Volt DC Adaptor
:
TYPE BF
between 15°C to 45°C
between 5°C to 55°C,
IP 54
:
:
:
:
WAVEFORM SPECIFICATIONS:
Channels
Waveform
Pulse Rate
Pulse Width
Output Voltages
Output Current
Modes
Treatment Time
Two
Asymmetrical biphasic Square
Selectable from 2 to 150 Hz
Selectable from 40 to 260 µS
50Vp @ 500Ω Resistive Load
100 mA @ 500Ω Resistive Load
Selectable(B- Burst, N-Normal and M-Modulation)
Selectable 30,C, 60 Minutes
NOTE: All the parameters have± 10% tolerance.
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6. CONTROLS AND FUNCTIONS
1
2
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5
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8
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7. HOW TO OPERATE T250
Slide Cover
A cover conceals the controls for the Pulse Rate, Pulse Width, Mode and the
Battery compartment. Pull down in order to open the cover.
Mode
This device offers three settings via the Mode switch. Be sure the amplitude
controls knobs are set to off '0' before changing the mode switch position.
Burst Mode (B): This mode provides a series of 9 pulses. Pulse rate, pulse
width and amplitude controls are fully adjustable in this mode.
Normal Mode (N): This mode provides normal stimulation through the pulse
rate, pulse width and amplitude control selections, resulting in a continuous
stimulation as per selection of pulse width and pulse rate.
Modulated Pulse width Mode (M): Pulse width decreases up to 40µS from
the selected value and then returns back to the selected value over a preset
period.
SYSTEM SPECIFICATIONS:
Channel-2 Output Receptacle
Channel-1 Output Receptacle
“LOW BATTERY” Indicator Light
Output “ON” Indicator Light
Channel-1 On/Off and
Amplitude Control
Channel-2 On/Off and
Amplitude Control
2
3
4
5
6
7Mode Selector Switch
Burst
Normal
Modulation
Timer Selection Switch
Pulse Width Control
Pulse Rate Control
8
9
10
1
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11 9 Volt Adaptor Socket
(*Optional)
*

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Timer Switch
Switch Position at “30”, unit runs for 30 minutes and output intensity turns
off automatically.
Switch position at “C”
When switch is set at position is at “C”, the unit runs continuously until it is
turned off manually.
Switch Position at “60”
When switch is at position of “60” unit runs for 60 minutes and output
intensity turn off automatically.
Amplitude Controls
The amplitude control knobs are located on the top of the unit. The
amplitude control knobs functions as ON/OFF control and controls the
intensity of the stimulator for Channel 1 and 2.
8. ELECTRODE CARE AND SELECTION
lThere are many kinds of electrodes. Be sure to use the electrodes
recommended by your physician or provided by the Manufacturer. After
using any of these electrodes, grasp the corner of the electrode and
gently remove it from your skin.
lDo not pull on the electrode snap or wire connection. Reapply the
release liner to the adhesive side of the electrode. Store the electrode in
a re-seal able pouch or plastic bag.
lTo prolong the life span of the electrodes, remoisten them by applying a
few drops of tap water when they show signs of drying out or losing their
adhesives. Apply the water with your fingertip.
lAfter repeated usage, reusable electrodes begin to lose their adhesives
and therefore deliver less stimulation and shorten battery life. Replace
reusable electrodes when needed.
LEAD WIREELECTRODES
9. CONNECTING THE DEVICE
lPrepare the skin: Thoroughly clean the area of skin where electrode
have to be place with mild soap and water, rinse well and bolt dry
thoroughly. Any excess hair should be clipped, not shaved, to ensure
good electrode contact with the skin. You may choose to use a skin
treatment or preparation that is recommended by your Physician or
Physiotherapist. Apply a skin treatment o preparation, let dry and apply
electrode as directed. This will reduce the chance of skin irritation and
extend the life of the electrode.
lConnect lead wires to the electrode: Connect the lead wires to the
electrodes before applying the electrode to the skin. Lead wires
provided with the device are compliant with mandatory compliance
standard set forth by international standards.
lPlacement of Electrodes: In general, electrodes are placed around the
area of pain. In some cases, electrodes are placed on acupuncture
points. However, it is advisable to consult your physiotherapist or
physician to determine the exact area of application for your specific
condition. Remember, to slightly change the location of the electrodes
placed on your body, if T250 device is used continuously for
IMPORTANT: Be sure both amplitude control knobs are turned to the OFF
position before connecting the device.

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many days, to avoid skin irritation. Avoid excessive stretching of skin
where applying electrode and smoothening, pressing it in place from
center outward.
lLead wire connection: Insert the lead wires into the output receptacle
located on the side of the unit by holding the insulated portion of the
connector, and pushing the plug end of the wire into one of the jacks.
Note: Use caution when you plug and unplug the wires. Pulling on the lead
wire instead of its insulated connector may cause wire breakage.
lPulse Rate Adjustment: As shown in the front view of the device on
page no. 5 set the pulse rate by turning knob, as recommended by your
physician.
lPulse width Adjustment: As shown in the front view of the device on
page no. 5 set the pulse width by turning knob, as recommended by your
physician.
lTreatment Time Adjustment: As shown in the front view of the device
on page no.5 select the time through the time switch.
lAmplitude Control: Turn the amplitude control knob for Channel 1 and
2 clockwise as shown in the top view of the device on page no.5 The ON
indicator will light up while the unit in operation.
lSlowly turn the Amplitude Control Knob in a clockwise direction, until
you reach the settings recommended by your Physician. Repeat with
other channels, if both channels are to be used.
lTurning the unit off: Turn both amplitude control knobs to '0', and then
disconnect the lead wire from the jack. If treatment is to be resumed
shortly, the electrode may be left on the skin. On removal of the
electrode from the skin, wash the skin thoroughly with mild soap and
water.
If the stimulation levels are uncomfortable or become uncomfortable,
reduce the stimulation amplitude to comfortable level. If problems
persist, stop treatment and contact your physician.
10. BATTERY INFORMATION
If battery is too weak it will not power up T250 or a low
battery indicator will light up.
When the low battery indicator is ON, the battery
should be replaced with a fresh battery.
lSlide the cover upward. This will reveal the battery
compartment
lRemove the old Battery from the device.
lPlace a new battery in the compartment. Note the
proper polarity alignment indicated on both the
battery and the battery compartment.
lEnsure old battery is disposed off safely.
11. CLEANING THE DEVICE
The device may be cleaned by wiping gently with a damp cloth moistened
with mild soap and water. Never immerse the device in water or other
liquids. Wipe lead wires with damp cloth if they become soiled. To properly
store the device for an extended period of time, remove the battery from the
unit. Place the T250 unit and accessories in the pouch and store in a cool
and dry place.
12. MAINTENANCE
Cleaning:
lThe soiled device should be cleaned with a damp cloth.
Electrode Cables:
lDo not pull out cables.
lFor routine cleaning of the electrode cables use soap and water and
thoroughly dry them after cleaning.
lElectrode wires should be kept loosely winded or breakage may occur.
Battery Band
Slide cover upwards
T250

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Storage:
lKeep the device properly covered, when not in use to keep out dust.
lStore the device in a proper and dry place. Damp environment cause
rust and affect the functioning of device.
Skin Care:
lApply electrodes on clean, dry and unbroken skin only.
lAlways wash the selected treatment area with mild soap and water and
dry it thoroughly before applying electrodes and after removing them.
lDo not stretch the skin or electrodes while applying or removing the
electrodes.
lWhen removing electrodes, always peel back in the direction of the hair
growth. If there is difficulty moisten the edges underside of the
electrode.
lApplying unflavored Milk of Magnesia over electrode placement sites
after removing electrodes helps maintain the natural pH of the skin and
reduces irritation.
lIf perspiration occurs in the area of the electrodes causing the
electrodes to slide out of position, wipe area with unscented anti-
perspiration pads and dry before reapplying electrodes.
lIf skin irritation arises and persists from the use of electrical stimulation
and certain type of electrodes, discontinue their use immediately and
consult your clinician.
13. TROUBLESHOOTING
If your T250 unit does not seem to be operating correctly, refer to the chart
below to determine what may be wrong, Should none of these measures
correct the problem, the unit will need servicing.
Observation Possible causes Remedy
Weak stimulation or No
Stimulation even at
maximum amplitude
setting
Poor electrode contact
or Insufficient gel on the
electrode
Electrode conduction is
low/ Lead wire is worn
out
Check the electrodes for
sufficient gel
Change electrodes/
Change lead wires
Skin irritation at
electrode placement site
Improper contact/ Gel
dried up
Wet or Change the
electrode
Sudden high intensity
while increasing
amplitude
Increasing amplitude too
fast.
Increase amplitude
slowly giving time to
patient to indicate his
comfort.
Unit doesn't switch ON. Battery deeply
discharged or not
connected properly.
Replace battery with a
new one or connect
properly.

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15. WARRANTY
This product warranty extends to the original consumer /purchaser of the
product.
Warranty duration
This product is warranted to the original consumer for a period of one (1)
year from the original purchase date.
Warranty coverage
This product is warranted against defective materials or workmanship. This
warranty ceases if the product has been damaged by accident, in shipment,
unreasonable use, misuse, neglect, improper service, commercial use, and
repair by unauthorized personnel. This warranty does not extend to any units
which are used in violation furnished by manufacturer, or to units which
have been altered or modified, or to damage to products or parts there of
which have the serial number removed, altered or defaced or rendered
illegible. The warranty doesn't cover normal wear & tear or replacement of
electrode cables, electrodes and other accessories.
Warranty disclaimers
This warranty is in lieu of all warranties expressed or implied and no
representative or person is authorized to assume for manufacturer/ any
other liable in connection with the sale of our products. There shall be no
claims for defects or failure of performance or product failure/ any theory of
tort, contract or commercial law including, but not limited in negligence,
gross negligence, and strict liability, breach of warranty and breach of
contract. Some states do not allow the exclusion or limitation of implied
warranties or consequential damages, so the above limitations may not
apply to you.
Manufacturer is not responsible or liable for indirect special or
consequential damages arising out of or in connection with the use
performance of the product or other damage with respect to loss of property
or loss revenues or profit.
14. SUGGESTED ELECTRODE PLACEMENT CHART

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Legal remedies
This warranty gives you specific legal rights, and you may also have other
rights that vary from state to state.
Warranty performance
During the above one-year warranty period, a product with a defect will be
repaired or replaced with a reconditioned comparable unit at distributor's
option when the product is returned to the distributor. The repaired or
replacement product will be in warranty for the balance of the one-year
warranty period and an additional one-month period. No charge will be
made for such repair or replacement.
Consumer service
For in warranty service for a product covered under the warranty period, no
charge is made for service and return postage. Please return the product
insured, packed with sufficient protection, postage insurance, prepaid to
the address. Customer's duty/brokerage fee, if any, must be paid by the
consumer.
Out of warranty service
There will be charges rendered for repairs made to the product after the
expiration of the aforesaid one (1) year warranty period, after purchaser is
advised appropriately.
The distributor cannot assume responsibility for loss or damage during
shipment. For your protection, carefully pack the product for shipment and
insure it with the carrier. Ensure that you return the unit and accessories
related to your problem and also that you indicate full return address. Also
send a copy of sales receipt or other proof of purchase to determine
warranty status. C.O.D. shipments cannot be accepted.
JOHARI DIGITAL HEALTHCARE LTD.
G-582-584, EPIP, Boranada, Jodhpur 342008 Rajasthan, India
Tel : [phone]
[email protected] | www.joharidigital.com
50SFG00003
50SFG00005
20MF08101
40CFG00003
IMPORTANT
The contents of this document is solely available for informational purpose only and are illustrative in
nature and must not be interpreted to be exhaustive and final & we reserve exclusive rights to change or
modify the contents at any stage without any prior intimation.
Subject to exclusive Jurisdiction to Courts in Jodhpur only
Carry Bag