Please make sure that the following steps are completed:
Step #1) Make sure lead(s) is fully inserted in respective CH1 or CH2 port on device.
Step #2) Make sure electrode pads are fully inserted into pin connectors on lead wire(s) .
Step #3) Make sure 2 or 4 electrodes ( 2 small or 1 XL pad per channel) are placed on the body. System can only function if conductive resistance is sensed by machine (all steps above) otherwise auto default to intensity level “0” is initiated. It’s a safety feature.
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