Dynatronics Dynatron 550 Plus, Service Manual

Page: 44 / 153

Dynatron
®
850plus & 550plus
HIGH VOLT - Treatment Instructions
36
Press the HI VOLT key; the device
automatically selects the high volt
channel (HV). Connect one lead with
two output connections to the HV
channel. It is best to use a lead that is
marked to show polarity. The active
electrode is connected to the positive
output. The dispersive electrode is
connected to the output end that is
marked negative. Ensure electrodes
are attached correctly to ensure the
polarity selected on the front panel of
the device is delivered
If desired, a bifurcated lead extension
may be attached to the positive (active)
end of the lead wire, allowing two active
electrodes to be used. In this case, be sure the dispersive electrode is at least twice the size
(in area) of the combined sizes of the active electrodes. The bifurcated lead wire extension is
an optional accessory available through your Dynatronics dealer.
During the treatment current flows in one direction between the active and dispersive
electrodes. Changing the polarity in the treatment parameters has the effect of reversing the
direction of the current flow between electrodes. It is important to attach the active electrode
to the positive output of the lead wire to ensure you are getting the selected polarity.
Set Up High Volt Treatment with Optional Probe
This attended form of high volt therapy is delivered
using a hand-held probe (optional accessory) in
conjunction with a dispersive electrode. The hand-
held probe is connected to the selected High Volt
output jack on the front of the machine.
With a probes treatment, intensity is controlled on the
front panel of the device; keep the device nearby so
you can change the intensity as needed. If you select
an on/off cycle (rather than continuous), you can watch
the channel display; when the HV LED begins
blinking, this indicates the treatment is in the off or
“rest” portion of the cycle and you can position the
probe at the next treatment site. By repositioning the
probe only during the rest portion of the cycle, you
ensure that the ramp is applied when the current again
comes on—the ramp provides greater patient comfort
as the current resumes. The continuous duty cycle
may be uncomfortable to the patient as it provides no
ramping of current when the probe is repositioned.
Dispersive electrode
A bifurcated extension may be attached
to the lead to allow TWO active
electrodes if desired. However, the
dispersive electrode should still be twice
the combined size (in area) of the two
active electrodes.
Active electrodes
High volt electrodes with bifurcated active lead.
DISPERSIVE
ELECTRODE:
Should be at least
twice the size in
area of the paddle
attachment used
with the probe.
Intensity is controlled at the front panel of
the device. Be sure the applicator
surface is making full contact with the
patient's skin before setting intensity.
Plug this cable into
the "HV" channel.
High Volt Probe Setup