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Ultrasound Applicator B
[h] Channel Status Channel stopped
Channel paused
Channel running
[i] Remaining treatment time. When a sequential protocol has been loaded, the value indicates the
total remaining treatment time of the sequential protocol.
[j] Output value
[k] Unit of Output value: µA, mA, V, W, W/cm
8.2.5.3 Adjusting current amplitude
To adjust the output current, touch the tab of the selected channel. Its colour will change to orange, after
which the current amplitude can be set with the central controller [7].
The current amplitude can only be adjusted when the clock has been set.
With 4 polar interferential current waveforms the current amplitude operates on both channels
simultaneously. In this case a balance facility is available for the classical interferential current waveform
(see paragraph 4.1.3 for details).
The unity of the displayed current amplitude depends on the previously selected current waveform and
can be expressed in mA, µA or V.
A treatment is started by adjusting the current amplitude, unless a surge program has been selected. To
start a surge program, touch the Start/Continue button in the navigation bar (8.2.5.6).
8.2.5.4 CC/CV mode
Depending on the selected current waveform, the electrotherapy channels can be used in the Constant
Current or Constant Voltage mode. It is advised to use the CV mode with dynamic electrode applications.
In CV mode the output current depends on the electrical contact with the patient and can therefore vary.
You can change the CC/CV setting in the parameter menu.
8.2.5.5 Current polarity
When DC currents are used, the red connection is the positive connection and the black one the
negative connection.
Manually changing the polarity during a treatment will result in a current decaying to 0, followed by a
current with the opposite polarity, rising to a value equal to 80% of the previous value.
8.2.5.6 Surge Programs
Surge programs allow you to program sequential increases and decreases in current amplitude. See fig
4.1.4.13 for details. Surge programs should not be confused with protocols:
• A single treatment step of a protocol could contain a surge program.
With independent channel operation the surge programs run independently over both channels. They can
independently be enabled and their parameters can individually be set. When the current channels are
linked, the surge programs are also linked, which implies that their parameters have identical values. In
this case a delay time can be set between the start of the surge on channel 1 and channel 2.
A treatment with a Surge Program is started by first finding the desired current amplitude. During this time
the system pauses. When the current amplitude has been established, the treatment can be started by
touching the Start/Continue button in the navigation bar.
Parameters:
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