Performa
™
Professional Series
- 15 -
IFC (Interferential) Premodulated (2 Pole)
Premodulated Current is a medium frequency waveform. Current
comes out of one channel (two electrodes). A bipolar technique in
which the two frequencies are “mixed” inside the machine prior to
tissue delivery.
PARAMETERS:
Carrier Frequency
Carrier frequency is the base frequency
of the alternating current.
Beat Frequency
Occurs when two waveforms are in and out
of phases. The difference between the two
frequencies produces the modulated effect
(i.e. Beat H. of 4000 and Beat L. of 4150 will
yield a 150 pps beat frequency).
Cycle Time
Cycle time refers to the time that the current is
On and Off (in seconds). Example: For a cycle
time of 10/50, the current will be flowing for 10
seconds and resting for 50 seconds.
Ramp Time
Ramp time is used to set a gradual increase in
intensity during the “on-time”. Ramps occur at
the beginning and ending of a cycle.
Stimulator Output Parameters
Waveform Type
Sinewave
Output Mode
Electrodes
Mode Selection
CC (Constant Current) or
CV (Constant Voltage)
Carrier Frequency
2 – 10 KHz, Stepping 0.5KHz
Beat High
(Beat L.) – 200 Hz, Stepping 1Hz
Beat Low
1 – (Beat H.) Hz, Stepping 1Hz
Intensity
CC: 0 – 100mA, Stepping 0.5mA;
CV: 0 – 100V, Stepping 0.5V
Treatment Time
1 – 60 Minutes
Ramp
2s
Waveform Specifications
