Covidien Force FX, Service Manual

Page: 146 / 246

Calibrating the Generator
5-38
Force FX Electrosurgical Generator C Service Manual
c.
Stop activation. Do one of the following:
• If the output current reading was too high, lower the Z factor.
• If the reading was too low, raise the Z factor.
To change the Z factor by ones, press the Coag up (

) or down (

) arrow buttons.
To change it by hundreds, press the Cut up (

) or down (

) arrow buttons.
Repeat this step until the voltmeter reading is within the stated range.
4.
Disconnect the test cables and remove 200 Ω resistor.
5.
To save the reactance gain calibration and go to the next calibration step, press the
Bipolar up arrow (

) button.
Next, go to
Check and Adjust the ECON Factor
.
Checking and Adjusting the ECON Factor
Equipment required
• Two short test cables (less than 24" [61 cm] long) with banana plugs
• 30, 100, and 500 Ω noninductive power resistors (such as the Dale NH-250)
• Bipolar footswitch and monopolar footswitch
• Current transformer (such as the Pearson Model 411 or equivalent)
• True RMS voltmeter (such as the Fluke 8920 or equivalent)
Verify that the Bipolar display shows calibration step C8.
Checking Bipolar Output
1.
Connect the test equipment for bipolar output.
a.
Connect the two test cables to the Bipolar Instrument receptacle.
b.
Connect the 30 Ω resistor across the output jacks at the end of the test cables.
c.
Connect the bipolar footswitch to the Bipolar Footswitch receptacle.
2.
Press the Precise button.
3.
Check the ECON for the selected bipolar mode.
a.
Verify that the Coag display shows 30.
b.
Use the bipolar footswitch to activate bipolar output for between two and five
seconds.
c.
Stop activation. Verify that the Coag display changed to 70.
d.
Use the bipolar footswitch again to activate bipolar output for between two and
five seconds.