Encore Medical Intelect TENS Instruction Manual page 13

9. High or Low Frequency Tens. Set the mode selector switch to
Timer (min)
the "N" position.
9
C
60
30
10. Adjust Pulse Frequency. Turn the Pulse Frequency control to
10
the setting recommended by your medical professional.
Frequency (Hz)
10
C
60
115
150
2
9