Covidien Force FX, Service Manual

Page: 142 / 246

Calibrating the Generator
5-34
Force FX Electrosurgical Generator C Service Manual
Verify that the Bipolar display shows calibration step C6. The Cut and Coag displays show
the V (output voltage) factor. If it is four or more digits, the most significant digits are in
the Cut display.
Checking the Voltage Sense Gain for Bipolar Output
1.
Connect the test equipment for bipolar output.
a.
Connect the two test cables to the Bipolar Instrument receptacle.
b.
Pass one test cable through the current transformer and connect the current
transformer to the voltmeter.
c.
Connect the 1000 Ω resistor across the output jacks at the end of the test cables.
d.
Connect the bipolar footswitch to the Bipolar Footswitch receptacle on the rear
panel.
2.
Check and adjust the V factor for bipolar output.
a.
Press the Standard button.
b.
Press the bipolar footswitch pedal and check the voltmeter for a reading
equivalent to 98 ± 14 mA
rms
.
c.
Stop activation. Do one of the following:
• If the output current reading was too high, raise the V factor by pressing the
Coag up arrow
(

)
button.
• If the reading was too low, lower the V factor by pressing the Coag down
arrow
(

)
button.
Repeat this step until the voltmeter reading is within the stated range. The V factor
for the Precise and Macro modes adjusts automatically.
3.
Disconnect the test cables and remove the 1000 Ω resistor.
Notice
Do not adjust the voltage sense gain while the generator is activated.
Notice
Do not activate the generator with any load resistor lower than 1000
Ω
while calibrating the
voltage sense gain for bipolar output. Otherwise, product damage will result.