Dynatronics Dynatron 550 Plus, Service Manual

Page: 84 / 153

Dynatron
®
850plus & 550plus
HIGH VOLT - General Information
76
High Volt Therapy
High voltage pulsed stimulation is a pulsed DC current with pulse widths in the microsecond
range and pulse rates ranging from 1 to 200 Hz, with a peak amplitude of up to 1.0 A
utilizing a twin-peak monophasic waveform.
The Dynatron 850plus and Dynatron 550plus provide the option of one high volt treatment
using the dedicated channel labeled HV. The treatment utilizes one channel with one or more
active electrodes and a large dispersive electrode. Electrodes are placed on opposite sides of
the affected area so treatment is “through” the affected area. An optional probe is available to
accommodate hands-on treatment delivery.
High Volt Therapy with Electrodes
High volt therapy may be delivered as an unattended treatment using electrodes. This
treatment setup uses one channel with two or more electrodes for unattended treatment. One
electrode acts as the dispersive electrode, and one electrode is the active electrode. The
active electrode is placed over the treatment site. It is recommended that the dispersive
electrode be at least double the size in area of the active electrode. The lead for the active
electrode may be bifurcated allowing placement of two active electrodes. However, the area
of the dispersive electrode is recommended to be at least double the combined total area of
the active electrodes.
High Volt with Optional Probes
High volt therapy with probes accommodates hands-on treatment. This therapy utilizes a
high volt probe and a dispersive electrode. The high volt probe is an optional accessory and
is not included in the standard accessory package for the Dynatron 850plus and 550plus.
High Volt Waveform
The high volt waveform is a twin-peak monophasic
decaying waveform with either positive or negative
polarity.
High Volt Settings
High and Low Sweep Pulse Rate. The user may
select High (80-120 Hz) or Low (1-10 Hz) frequency
ranges. During a treatment, the device scans through
the range of frequencies selected. The settings for
these pulse rate ranges may be modified and saved
by the user. The available range is 1 to 200 Hz.
Single Pulse Rate. The pulse rate may be set to a
100
µ
s pulse
interval spacing
At one-half
amplitude, pulse
width is 25
µ
s
Limited to less than 500 V, open load
High Volt Waveform for positive
polarity