Calibrating the Force EZ-C Series Electrosurgical Generator
6-32
Force EZ-C Series Service Manual
c.
Connect the resistors in series to achieve a 750 ohm load 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.
or
Connect the monopolar footswitch to the Footswitch receptacle on the front
panel and press the Footswitch Selector button until the left arrow indicator
illuminates green.
3.
Check and adjust the V factor for bipolar output.
a.
Press the footswitch pedal and check the voltmeter for a reading
equivalent to 0.252 +0/–.005 A
rms
(0.247 to 0.252 A
rms
).
b.
Stop activation. If the output current was not within the stated range,
adjust the V factor. Use the Coag Power Control knob for small
adjustments and the Cut Power Control knob for larger adjustments.
Approach the value from the low side to give consistent calibration results.
Adjust until the current is as close as possible to 0.252 A
rms
, but not over
0.252 A
rms
.
Repeat 3a and 3b until the output current is within the stated range.
4.
Disconnect the test cables and remove the resistors.
Checking the Voltage Sense Gain for Monopolar Output
1.
Connect the test equipment for monopolar output.
a.
Connect the test cables to the Monopolar Instrument receptacle.
b.
Connect the resistors in series to achieve a 3000 ohm load. Ensure that one
test cable passes through the current transformer.
c.
Connect a monopolar footswitch to the Monopolar Footswitch receptacle
on the rear panel.
2.
Check and adjust the V factor for the pure mode.
a.
Press the Pure button.
b.
Press the footswitch cut pedal and check the voltmeter for a reading
equivalent to 0.217 +0/–.004 A
rms
(0.213 to 0.217 A
rms
).
c.
Stop activation. If the output current was not within the stated range, use
the Cut and Coag Power Control knobs to adjust the V factor.
Approach the value from the low side. Adjust until the current is as close as
possible to 0.217 A
rms
, but not over 0.217 A
rms
.
Repeat 2b and 2c until the output current is within the stated range.
Notice
Do not activate the generator with any load resistor lower than 3000 ohms while
calibrating the voltage sense gain for the pure cut mode. Do not activate the
generator with any load resistor lower than 2000 ohms while calibrating the
voltage sense gain for the blend mode. Otherwise, product damage will result.
