Product Manual
INTERFERENTIAL AND PREMODULATED MODALITY INFORMATION
DYNATRON® 25 SERIES™ | OPERATOR’S MANUAL 31
Target Sweep
e Sweep option literally moves the point of interference inward and outward in a somewhat spiral pattern, bathing about
80 percent of the area within the electrodes with the Interferential current. Sweep utilizes the Target feature and moves the
point of interference to cover a wider treatment area while still retaining the full Interferential beat. Sweep bathes a larger
area with the Interferential current.
Interferential Electrode Placement
When performing Interferential therapy with a two-channel or four-electrode setup, it is
important to arrange the electrodes in a crisscross manner so the current from one channel
will intersect with the current from the second channel at the point where treatment is to be
delivered. Consult published literature for electrode placements for specic sites and conditions.
Interferential / Premodulated Default Settings
e following default settings are set by the manufacturer and are selected when you select IFC or PREMOD. You may
change these defaults to your own preferred settings.
Interferential Default Settings
• High 80-150 Hz
• Target
• e rst available channel pair (1-2 or 3-4)
• Time: 10 minutes
• Frequency Ranges: High 80-150 Hz; Low 0-10 Hz
Premodulated Default Settings
• High 80-150 Hz
• Target
• e rst available channel pair (1 through 4)
• Time: 10 minutes
• Frequency Ranges: High 80-150 Hz; Low 0-10 Hz
• Interferential/Premodulated erapy: 4000 Hz sine wave frequency modulated by a 4000 to 4150 Hz variable
frequency sine wave of equal amplitude
Interferential Electrode Placement