Covidien Force FX, Service Manual

Page: 56 / 246

Output Characteristics
3-26 Force FX Electrosurgical Generator C Service Manual
Output Waveforms
Instant Response technology, an automatic adjustment, controls all bipolar modes and all
cut modes. It does not control the coag modes because of their fulguration capabilities.
For more information, refer to Chapter 4,
Instant Response Technology and Instant
Response Algorithm .
Bipolar
Monopolar Cut
Monopolar Coag
Precise 470 kHz sinusoid
Standard 470 kHz sinusoid
Macro 470 kHz sinusoid
Low 390 kHz sinusoid. Similar to the Pure cut mode except
the maximum voltage is limited to a lower value.
Pure 390 kHz sinusoid
Blend 390 kHz bursts of sinusoid, recurring at 27 kHz
intervals. 50% duty cycle.
Desiccate 240 kHz sinusoid repeated at 39 kHz. 8% duty cycle
Fulgurate 470 kHz damped sinusoidal bursts with a repetition
frequency of 30 kHz into 500
Ω
LCF Fulgurate 470 kHz damped sinusoidal bursts with a repetition
frequency of 57 kHz into 500
Ω
Spray 390 kHz sinusoidal bursts with a randomized
repetition centered at 28 kHz. Frequencies include
21 kHz < f < 35 kHz. Output is further modulated by a
random 250 Hz envelope with a variable duty cycle.