TENS 3000 Walkthrough and Review

What is it?

The TENS 3000 unit is an electrotherapy  device that is used to relieve both chronic and acute musculoskeletal  pain.
What does TENS mean?
The letters TENS stand for:
What does transcutaneous electrical nerve stimulation mean?
These words mean that the TENS 3000 uses electrical impulses to stimulate the nerves underneath the skin. Contrary to what that may suggest, though, the TENS 3000 unit is completely non-invasive and virtually painless. In addition to that, it doesn’t have any side effects like pain medications do. 
What does it do?
The TENS 3000 device alters the manner in which nerves perceive pain so that they don’t send pain signals to the brain. 

What is the TENS 3000 used for?
Transcutaneous electrical nerve stimulation is used to relieve:
  • Low back pain. 
  • Hip neuralgia. 
  • Phantom limb.
  • Sciatica. 
  • Bicipital tendonitis. 
  • Temporal mandibular joint pain (TMJ). 
  • Shoulder pain. 
  • Reflex sympathetic dystrophy. 
  • Trigeminal neuralgia. 
  • Cervical pain. 
  • Chronic cervical strain. 
  • Chronic cervical spine pain (postlaminectomy). 
  • Cervical osteoarthritis. 
  • Unilateral cervical spine pain. 
  • Mastectomy.
  • Cervical and lumbar degenerative arthritis.
  • Lateral rib cage pain. 
  • Chronic hip pain. 
  • Herpes zoster neuralgia. 
  • Acute muscle and ligament tear (ankle). 
  • Post podiatric surgery (involving lateral toes). 
  • Post-operatory knee pain. 
  • Degenerative arthritis (knee pain). 
  • Recurrent patellar subluxation. 
  • Low extremity pain (reflex sympathetic dystrophy). 
  • Lower leg pain (diabetic neuropathy). 
  • Carpal tunnel syndrome. 
  • Wrist pain. 
  • Elbow and forearm pain.
  • Upper extremity pain (reflex sympathetic dystrophy). 
  • Ulnar nerve lesion atypical facial pain.
How to use it.
Making sure the unit is turned off, connect the plug end of the lead wires to the sockets on the top of the device, and the pin connectors of the lead wires to the electrode pads. Wash and dry the area to be treated and place the electrodes. Turn the machine on and adjust it to the settings that your doctor has recommended for you. The TENS 3000 is a dual channel unit, which means that up to four electrodes may be used at a given time (one set of two electrodes connected to each channel). 
What are the parts of a TENS 3000 unit?
A TENS 3000 device comes with the following accessories:
  • 4 adhesive electrodes.
  • 2 electrode leads.
  • 1 nine volt battery.
  • 1 instruction manual.
  • 1 carrying case.
  • 1 belt clip.
  • The TENS 3000 unit itself is comprised of:
  • Slide cover.
  • Display LED.
  • On/off switch and intensity controls.
  • Mode control.
  • Pulse rate control.
  • Pulse width control.
  • Lead connectors.
  • Timer.
  • Battery compartment.
What are the TENS 3000 modes?
This device includes three different treatment modes:
Normal (N): 
  • Provides constant stimulation
Burst (B): 
  • Emits bursts two times per second.
  • Adjustable pulse width.
  • 100 hz fixed frequency.
Modulation (M)
  • Pulse rate varies in ten-second cycles.
  • Decreases by 40% over four seconds, remains constant for one second, then increases 40% over four seconds.
Other technical specifications include:
  • Channel: Dual, isolated between channels.
  • Pulse amplitude : adjustable, 0-80 mA peak into 500 ohm load each channel.
  • Pulse rate : Adjustable, from 2 to 150 hZ.
  • Pulse width : adjustable, from 30 to 260 microseconds.
  • Wave form : asymmetrical bi-phasic square pulse.
  • Timer: 15, 30 minutes or continue.
  • Voltage: 0 to 40 V (load: 500 ohm).
  • Maximum charge per pulse: 20 micro-coulombs.
  • Power supply: 9v battery.
  • Battery life: approx. 50 hrs at nominal settings.
  • Size: 95 x 65 x 23.5 mm.
  • Weight: 115 gm (with battery).
When is the TENS 3000 contraindicated?

Tens therapy is contraindicated in patients with:
  • A pacemaker or any other metal implant.
  • Known or suspected heart disease.
Additionally, electrode pad should not be placed on the front or sides of the neck. Electrical current should not flow through the thorax or through the head. The TENS 3000 should be used with caution or not used at all around electronic monitoring equipment or when operating potentially dangerous machinery. 
The TENS 3000 unit is a symptomatic treatment but has no curative value. In other words, it relieves pain but does not address the underlying condition that is causing. Moreover, electrotherapy should not be used for pain which etiology  hasn’t been established.