Direct Supply Direct Choice DSDC2CPD User manual

Please keep and refer to this Owner’s Manual.
Thank you for purchasing a Direct Supply®Direct Choice™ 2-Channel
Digital TENS Device with Preset Programs from Direct Supply Equipment
& Furnishings®. Please read this entire guide carefully and keep it for future
reference. This guide will provide you with instructions, warnings, warranty
information and other important information about your 2-Channel Digital
TENS Device. Share this information with your housekeeping, nursing and
maintenance staff to help ensure the 2-Channel Digital TENS Device is used
and cared for properly.
Direct Supply®Direct Choice™
2-Channel Digital TENS Device
with Preset Programs
Model #DSDC2CPD
Owner’s Manual

2
Table of Contents & Introduction
Introduction..........................................................................2
Definitions and Symbols.....................................................3
Safety Notices – Warnings and Cautions .......................4-6
Contraindications.................................................................7
Product Description..........................................................8-9
Technical Specifications....................................................10
Waveforms .........................................................................11
Replacement Parts and Accessories ................................12
Functions and Use ........................................................13-17
Preset Treatment Programs..............................................18
Battery Information ...........................................................19
Care and Maintenance.......................................................20
Troubleshooting............................................................20-21
Electromagnetic Capability (EMC) Tables...................22-26
Conformity to Safety Standards.......................................27
Limited Warranty..........................................................28-29
Customer Service...............................................................30
Introduction
Thank you for purchasing this Direct Supply Direct Choice
2-Channel Digital TENS Device with Preset Programs from Direct
Supply Equipment & Furnishings, a division of Direct Supply®,
Inc. In this owner’s manual, you’ll find important information
that you should read before using this device. Please keep this
manual available for future reference. Should you have any
questions, please contact your Direct Supply Equipment &
Furnishings account manager.
Transcutaneous Electrical Nerve Stimulation (TENS) is a
noninvasive, drug-free method of controlling pain. TENS uses
tiny electrical impulses sent through the skin to nerves to modify
your pain perception. TENS does not cure any physiological
problem; it only helps control the pain. TENS does not work for
everyone. However, in most patients it is effective in reducing or
eliminating the pain, allowing for a return to normal activity.

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Definitions and Symbols
Definitions and Symbols
NOTE: Indicates a tip.
• Attention. Read the instructions.
WARNING: Calls attention to a potential danger that requires
correct procedures or practices in order to prevent personal injury.
CAUTION: Indicates correct operating or maintenance
procedures in order to prevent damage to or destruction of
the equipment or other property.
DEVICE: Your Direct Supply Direct Choice 2-Channel Digital
TENS Device with Preset Programs.
YOU and YOUR: The facility, community or other entity that
has purchased the device.
WE, US and OUR: Direct Supply Manufacturing, Inc.
: Batch code.
: Serial number.
: Dispose of your device properly. Please contact the
organization responsible for your waste disposal for more
information.
: Type BF applied part.
: Type of protection against electric shock: Class II
Equipment.
: Read Owner’s Manual.

4
Safety Notices –
Warnings and Cautions
Check your Direct Supply Direct Choice 2-Channel Digital
TENS Device with Preset Programs each week based on the
following checklist:
1. Check the device for external damage, such as deformation
of the housing and damaged or defective output sockets.
2. Check the device for defective operating elements, such as
the switches or knobs. Check the legibility of labels.
3. Check that the LCD is displaying information when a
channel is turned on.
4. Check the usability of accessories. Check that the cables
and electrodes are not damaged. If the device appears
to be damaged in any way, do not use the device and
contact Direct Supply Equipment & Furnishings for
troubleshooting assistance.
•WARNINGS
Read and follow all directions and warnings before using
this device. Do not operate this product without first reading
and understanding this user manual. Damage, injury or even
death may result from improper use of this device or not
following directions and warnings. This device is intended
for use by trained and licensed healthcare or senior care
providers in normal, indoor conditions.
• CautionshouldbeusedinapplyingTENStopatients
suspected of having heart disease. Further clinical data is
needed to show there are no adverse results.
• TENSdeviceshavenoAP/APGprotection.Donotusethemin
the presence of explosive atmosphere and flammable mixture.
• ThesafetyofTENSdevicesforuseduringpregnancy
or birth has not been established. Do not use TENS
during pregnancy.

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• TENSisnoteffectiveforpainofcentralorigin.(This
includes headache.)
• TENSdeviceshavenocurativevalue.
• TENSisasymptomatictreatmentandassuchsuppresses
the sensation of pain which would otherwise serve as a
protective mechanism.
• Electronicmonitoringequipment(suchasEGGmonitors
andEGGalarms)maynotoperateproperlywhenTENS
stimulation is in use.
• Thereshouldbeaprominentlyplacedstatementwarning
that stimulus delivered by this device may be sufficient to
cause electrocution. Electrical current of this magnitude
must not flow through the thorax because it may cause a
cardiac arrhythmia.
• Donotplaceelectrodesonthefrontofthethroatasspasm
of the laryngeal and pharyngeal muscle may occur.
• Careshouldbetakensothatwhenoperatingpotentially
dangerous machinery the stimulator controls are not
changed abruptly.
• Keepthisdeviceoutofthereachofchildrenandindividuals
with cognitive impairment.
• Neveruseinenvironmentswithhighhumiditysuchasin
the bathroom or when having a bath or shower.
• Electrodesshouldneverbeplacedovertheeyes,inthe
mouth, near the genitals, or internally.
• Donotusewhilesleeping.
• Skinirritationandelectrodeburnsarepossibleadversereactions.
If either occurs, discontinue use and consult your physician.
• Residentswithanimplantedelectronicdevice(forexample,
a pacemaker) should not undergo TENS treatment without
first consulting a doctor. The same applies to patients with
any metallic implants.

6
Safety Notices –
Warnings and Cautions (cont.)
• Thisdeviceshouldnotbeusedwhiledriving,operating
machinery, close to water or during any activity in which
involuntary muscle contractions may put the user at undue
risk of injury.
• Federallawrestrictsthisdevicetosalebyorontheorderof
a physician. This device is intended for use under the order
of a healthcare practitioner licensed by your state.
•CAUTIONS
• Isolatedcasesofskinirritationmayoccuratthesiteof
electrode placement following long-term application.
Effectiveness is highly dependent upon patient selection by
a person qualified in the management of pain patients. This
device should be used under the supervision of a licensed
healthcare professional.
• Possibleallergiestogel,skinirritationandelectrodeburn
are potential adverse reactions.
• IfTENStherapybecomesineffectiveorunpleasant,
stimulation should be discontinued until its use is
reevaluated by a licensed healthcare professional.
• Alwaysturnthedeviceoffbeforeapplyingorremoving
electrodes.

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Contraindications
• Thisdeviceshouldnotbeusedforsymptomaticlocal
pain relief unless etiology is established or unless a pain
syndrome has been diagnosed.
• TENSisnotrecommendedforpatientswithknownheart
disease without physical evaluation of risk.
• Thisdeviceshouldnotbeusedwhencancerouslesionsare
present in the treatment area.
• Stimulationshouldnotbeappliedoverswollen,
infected, inflamed areas or skin eruptions (e.g. phlebitis,
thrombophlebitis, varicose veins, etc.).
• Electrodesmustnotbeappliedtositesthatmightcause
current/stimulationtoflowthroughthecarotidsinusregion
(anterior neck) or transcerebrally (through the head).
• Donotusethisdeviceifthepatienthasademand-type
cardiac pacemaker or any implanted defibrillator.
• Thisdeviceshouldnotbeusedoverpoorlyenervatedareas.
• Epilepsy.
• Seriousarterialcirculatoryproblemsinthelowerlimbs.
• Abdominaloringuinalhernia.

8
Device Description
The Direct Supply Direct Choice 2-Channel Digital TENS
Device with Preset Programs is a portable electrotherapy
device featuring Transcutaneous Electrical Nerve Stimulation
(TENS) therapy, which is used to assist with pain relief.
The device sends a gentle electrical current to underlying
nerves and muscle group via electrodes applied on the skin.
The parameters of device are controlled by the buttons. Its
intensity level is adjustable according to the needs of patients.
1. Output socket
2. Adapter receptacle
3. Select the treatment time
4. Increasing the output intensity of channel 1
5. Decreasing the output intensity of channel 1
6. LCD display: Shows the operating state of the device
7. Therapeutic part program selection
8. Increasing the output intensity of channel 2
9. Decreasing the output intensity of channel 2
10. Press button to turn on or turn off the device
11. Belt clip
12. The battery compartment cover
1
2
Top
Side Front Back
3
4
5
6
7
8
9
10
11

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1. Display TENS therapeutic mode
2. Lock function indicator
3. Low-battery indicator
4. Display numbers of the treatment time
5. Timer symbol
6. Display numbers of the output intensity for channel 1
7. Display numbers of the output intensity for channel 2
8. Display therapeutic program by body part
1
23
4
5
6
7
8

10
Technical Specifications
Specification Technical Description
Channels Dual; isolated between channels
Power Supply One 9V battery or optional AC power
adaptor
Operating
Conditions Temperature: 40°F - 104°F Relative Humidity: 30% - 75%
Atmospheric Pressure: 525 mmHg -
795 mmHg
Storage Conditions Temperature: 14°F - 122°F
Relative Humidity: 10% - 90%
Atmospheric Pressure: 525 mmHg -
795 mmHg
Tolerance There may be a ±10% tolerance of
output intensity and ±5% on all other
setting parameters
Electrode Detection
Function The amplitude level will be reset to 0mA when the amplitude level is
12mA or greater and an open circuit
is detected at either channel
Waveform Mono-phase square pulse wave
Timer 15 minutes, 30 minutes, 60 minutes
and continuous
Pulse Amplitude Adjustable, 0~105mA at 1,000 ohm
loadateachchannel;1mA/step
Pulse Width From 100 to 260 µs
Pulse Rate From 50 to 150 Hz
Size 4.5"L x 2.55"W x 0.9"H
Weight 4.48 oz. (battery included)

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Waveforms
Normal
Pulse Width Modulation
Pulse Rate Modulation
Modulation/PulseWidthandPulseRate
CycleTime
CycleTime
CycleTime

12
Replacement Parts
and Accessories
Please contact your Direct Supply Equipment & Furnishings
account manager to order replacement parts or accessories
for your 2-Channel Digital TENS Device with Preset Programs.
Only Direct Supply Direct Choice accessories are intended for
use with this device.
Available accessories may include:
• Electrodeleadwires
• Electrodes
• Owner’smanual
• Carryingcase
• ACadaptor(optional)

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Functions and Use
Connect Electrodes to Lead Wires:
Insert the lead wire connector into electrodes connector
(standard 0.08" female connection). Make sure no bare metal
of the pins is exposed.
Attachment of Electrode Lead Wires:
The wires provided with the system insert into the jack
sockets located on top of the device. Holding the insulated
portion of the connector, push the plug end of the wire into
one of the jacks. One or two sets of wires may be used. This
device has two output receptacles controlled by Channel 1
and Channel 2 at the top of the device. You may choose to
use one channel with one pair of lead wires or both channels
with two pairs of lead wires. Using both channels gives the
user the advantage of stimulating two different areas of the
resident’s body at the same time.
• WARNING: Do not insert the plug of the patient lead wire
into any AC power supply socket.
Electrode Options:
The electrodes are disposable and should be routinely
replaced when they start to lose their adhesive nature. If you
are unsure of your electrodes’ adhesive properties, order
replacement electrodes. Replacement electrodes should be
re-ordered through or on the advice of your physician to

14
Functions and Use (cont.)
ensure proper quality. Follow application procedures outlined
in electrode packing, to maintain optimal stimulation and to
prevent skin irritation.
Electrode Placement:
The placement of electrodes can be one of the most important
parameters in achieving success with TENS therapy. Of utmost
importance is the willingness of the clinician to try the various
styles of electrode placement to find which method best fits
the needs of the individual patient. Contiguous placement is
the most common placement technique. It involves placing
the electrodes alongside the localized pain site, in such a way
as to direct the flow of current through or around the area
of pain. In a single-channel application, this would involve
placing each pad on either side of the pain site, if the pain is
localized on a limb and deep within the tissue. Pad placement
on the posterior and anterior aspects of the affected limb will
allow the current to flow completely through the limb and
thus through the endogenous pain site. With a two-channel
application, the clinician may either direct the current flow to
cross through the pain site or, in what is called the “bracket”
method, allow the current to flow on either side of the
painful area, generally through the nerve branches that feed
into the pain site.
Application of Adhesive Electrodes:
Application:
• Cleananddrytheskinattheprescribedareathoroughly
with soap and water prior to application of electrodes.
• Inserttheleadwireintothepinconnectoronthe
pre-wired electrodes.
• Removetheelectrodesfromtheprotectivelinerandapply
the electrodes firmly to the treatment site.

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Removal:
• Liftattheedgeofelectrodesandpeel;donotpullonthe
lead wires because it may damage the electrodes.
• Placetheelectrodesonthelinerandremovetheleadwire
by twisting and pulling at the same time.
Care and Storage:
• Betweenuses,storetheelectrodesintheresealedbagina
cool dry place.
• Itmaybehelpfultoimproverepeatedapplicationby
spreading a few drops of cold water over the adhesive and
turn the surface up to air dry. Over-saturation with water
will reduce the adhesive properties.
•WARNING:
• Onlyusethedevicewithelectrodesprovidedbythe
manufacturer.
• Donotapplyelectrodestobrokenskin.
• Theelectrodesshouldbediscardedwhentheynolonger
adhere to the skin.
• Theelectrodesareintendedforsinglepatientuseonly.
• Ifirritationoccurs,discontinueuseandconsultyourclinician
or other healthcare professional.
• Readtheinstructionsforuseofself-adheringelectrodes
before application.

16
Tips for Resident Skin Care
To avoid skin irritation, especially if the resident has sensitive
skin, follow these suggestions:
• Washtheareaofskinwhereyouwillbeplacingthe
electrodes, using mild soap and water before applying
electrodes, and after taking them off. Be sure to rinse soap
off thoroughly and dry skin well.
• Excesshairmaybeclippedwithscissors;donotshave
stimulation area.
• Wipetheareawiththeskinpreparationyourclinicianhas
recommended. Let this dry. Apply electrodes as directed.
• Manyskinproblemsarisefromthe“pullingstress”from
adhesive patches that are excessively stretched across the
skin during application. To prevent this, apply electrodes
from center outward; avoid stretching over the skin.
• Tominimize“pullingstress,”tapeextralengthsoflead
wires to the skin in a loop to prevent tugging on electrodes.
• Whenremovingelectrodes,alwaysremovebypullinginthe
direction of hair growth.
• Itmaybehelpfultorubskinlotiononelectrodeplacement
area when not wearing electrodes.
• Neverapplyelectrodesoverirritatedorbrokenskin.
Selecting the Programs on the 2-Channel Digital TENS
Device with Preset Programs:
This device has 10 preset programs. For the details of the
programs please refer to the Preset Programs table later in this
owner’s manual. The therapeutic part program can be selected
by pressing the [S] button control. The therapeutic part program
indicator will flash after you have selected it. Apply electrodes to
the exact site indicated by your physician or therapist.
Functions and Use (cont.)

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Selecting the Treatment Time:
There are four choices available for the treatment time:
15 minutes, 30 minutes, 60 minutes and continuous. The
treatment time can by selected by pressing the [T] button.
Adjusting the Channel Intensity:
Press the intensity control button (arrow-up and arrow-down
buttons) to control the intensity output. Slowly press the
desired intensity button control until you reach the setting
recommended by your physician or therapist. Repeat for the
other channel, if both channels are being used.
•WARNING: If the stimulation levels are uncomfortable or
become uncomfortable, reduce the stimulation intensity to a
comfortable level and contact your physician or therapist if
the problem persists.
Safety Lock Feature:
The Safety Lock Feature automatically activates after there is
no operation in the panel for 30 seconds; it operates by locking
out the ability to press the buttons. This is a safety feature to
prevent accidental changes to your settings and to prevent
accidental increases to the intensity levels. You can press either
one of the arrow-down buttons to unlock the device.
Turn On/Off:
To turn the device on or off, press the power button on the
front of the device.
• CAUTION: If there is no operation for three (3) minutes in
the waiting state, the device will shut off automatically. In
shutdown state, keep pressing the channel 2 down-arrow first,
and then press the power button at the same time to restore
factory parameter settings.

18
Preset Treatment Programs
•WARNING: Always verify with a licensed healthcare
professional that a preset program is appropriate for a specific
resident before using the device.
Program Waveform Mode Frequency
(Hz)
Pulse
Width
(µs)
Default
Treatment
Time (min)
NECK Modulation 60-100 100-
150 30
SHOULDER Pulse rate modulation 80-100 260 30
MIDBACK Pulse rate modulation 100-150 100 30
LOWBACK Frequency modulation 50-80 260 30
ELBOW Continuous 100 100 30
WRIST Continuous 100 260 30
HIP Pulse rate modulation 100-150 200 30
KNEE Pulse width modulation 120 100-
150 30
ANKLE Continuous 100 100 30
FOOT Modulation 60-100 100-
180 30

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Battery Information
Low Battery Indicator:
A battery symbol is shown on the display when the battery is
almost empty. As long as the stimulator is working normally
you can continue the treatment. When stimulation feels weaker
than usual or the stimulator turns off, it is time to replace
the new battery. If you suspect the device is not functioning
correctly due to a low battery, immediately discontinue use
until the battery has been replaced.
Check/Replace Battery:
Over time, in order to ensure the functional safety of TENS,
changing the battery is necessary.
1. Make sure that both intensity controls are switched to
off position.
2. Slide the battery compartment cover and open.
3. Remove the battery from the compartment.
4. Insert the battery into the compartment. Note the polarity
indicated on the battery and in the compartment.
5. Replace the battery compartment cover and slide to close.
6. Discard the old battery in accordance with state and local
regulations.
The Direct Supply Direct Choice Digital TENS device can be
used with a rechargeable battery when necessary. If you
use rechargeable batteries, please follow the instructions
accompanying the batteries.
NOTE: Rechargeable batteries are not included.
Prior to the use of a new unit, the rechargeable battery
should be charged according to the battery manufacturer’s
instructions. Before using the battery charger, read all
instructions and cautionary markings on the battery and in
this owner’s manual. After being stored for 60 days or more,
the batteries may lose their charge. After long periods of
storage, batteries should be charged prior to use.

20
Care and Maintenance &
Troubleshooting
Care and Maintenance
Always verify the device is properly functioning before use. Use
a non-flammable cleaning solution to clean the device. Stains
and spots can be removed with a mild cleaning solution. When
transporting the device, use the padded carrying case to keep
the device protected. If the device is not to be used for a long
period of time, remove the battery and place the device and
accessories in the carrying case and store in a cool, dry place.
The device should be stored or transported in a temperature
range of 0°-140°F, relative humidity between 20% and 95%, and
an atmospheric pressure range of 375-795 mmHg.
•WARNING: Do not submerge the device in liquids or
expose it to large amounts of water.
Troubleshooting
•WARNING: Do not try to repair your device. Contact Direct Supply
Equipment & Furnishings for additional troubleshooting assistance.
Problem Possible Cause Solution
Display fails
to light up Battery contact failure 1. Try fresh batteries
2. Ensure batteries are
inserted correctly
Stimulation
is weak Electrodes are not adhering properly
or are not placed
properly
Replace electrodes
Leadswiresareold/
worn/damaged
Replace lead wires
Stimulation is
uncomfortable Intensity is too high Decrease intensity
Electrodes are too
close together Reposition electrodes
Damaged or torn
electrodes or lead wires Replace lead wires
Electrode active area
is too small Replace electrodes with ones
that have an active area of
no less than 16.0 sq. cm