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Combination 860
65
LP - modulé en longues périodes
The LP waveform provides an MF signal for 5 seconds. Then over the next
2.5 seconds the other phase of the 50Hz rectified signal is smoothly
increased in amplitude to give a DF signal for a further 5 seconds. Finally
the signal returns to MF by smoothly reducing one phase of the rectified
signal over the next 2.5 seconds. The complete sequence takes 15
seconds. Part of the LP waveform showing how the alternate phase
increases in amplitude is shown above.
RS – rythme syncopé
The RS waveform is 1 second of MF followed by 1 second of zero output,
this sequence being repeated continually.
Two channels of output are available with independent intensity control.
Polarity
The above waveforms exhibit Pos (+) polarity as they all travel above the
ground (zero volts) level (equivalent to the flat part of the waveforms). The
polarity switch enables the user to reverse this
Neg (-) so that the above waveforms would be rendered ‘upside-down’
(both channels are inverted). This feature is particularly useful in
combination mode, when the ultrasound head becomes one electrode, and
we can select the polarity of the waveform relative to the head. A third
option is Auto-reverse, in which the polarity automatically reverses half way
through the selected treatment time.
Summary of Contents for 125
Page 1: ...User Manual PRIMO COMBINATION 860 Model 125 ...
Page 2: ...Combination 860 2 ...
Page 77: ...Combination 860 77 ...