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15
Chapter 17: TROUBLESHOOTING
If your device does not function properly:
Problem Possible Cause Solution
Stimulation is weak
1. Low Batteries
2. Poor electrode contact
3. Worn electrodes
1. Change Batteries
1. Reapply electrodes, secure
rmly
2. Replace electrodes
Stimulation stops
1. Low Batteries
2. Poor electrode contact
3. Damaged or worn lead wires
and/or electrodes
4. Therapy time complete
1. Change Batteries
2. Reapply electrodes, secure
rmly
3. Replace lead wires and/or
electrodes
4. Restart device
Stimulation weakens
with minutes after start
Normal “adaptation” response Increase intensity
Unintentional muscle
contractions
Intensity too high Decrease intensity
Stimulation
uncomfortable
1. Intensity too high
2. Improper electrode placement
3. Poor electrode contact
1. Decrease intensity
2. Reposition electrodes
3. Reapply electrodes, secure
rmly
Stimulation ineffective Improper electrode placement Reposition electrodes
Note: If there is any other problem, please call Zewa customer service at 1-888-993-3592.
Chapter 18: TECHNICAL SPECIFICATIONS
Wave form Asymmetrical Bi-Phasic square pulse
Channel Dual, isolated between channels.
Modes 3 Modes
Pulse Intensity Adjustable 0-100mA peak into 500 ohm load each channel
Pulse Rate 1-150Hz
Pulse Width 30-300uS
Timer 5 – 95 min. and continuous
Power source 3 x AAA Batteries (4.5V)
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