Cosman G4, Руководство по обслуживанию

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Cosman G4 Radiofrequency Generator Service Manual (SPI
11291
Rev A)
Section 8
8.2.2 Thermal RF Settings
The Electrode Setup settings (Section 7.1) determine the number and configuration of electrodes when the
generator delivers Thermal RF output. When Thermal RF output is enabled by the user, it is delivered to all
electrodes selected as “active” on the Electrode Setup screen. The following settings determine the
Thermal RF output characteristics.
•
Mode :
•
Standard
: Time and Temperature control for the Thermal RF output is determined by the Auto
Ramp, Set Temp, and Set Time settings.
•
Stepped
: Time and Temperature control for Thermal RF output is determined by the Start Temp,
Step Temp Increment, Final Temp, Step Time, and Final Time settings. RF Voltage is controlled
automatically by the generator in order that the Temperatures of active electrodes vary in a
stepwise manner.
•
Stagger Start : When using multiple electrodes, electrodes will turn on sequentially from low to high
index, spaced in time by this setting value.
•
0 seconds
: All electrodes are energized simultaneous when the user enables Thermal RF
output using the front-panel Start button.
•
5-30 seconds
: After the user enables Thermal RF output using the front-panel Start button, each
electrode is not energized until Stagger Start seconds after the previous, lower-indexed
electrode is energized.
The following settings apply only when Thermal RF Mode = Standard.
•
Auto Ramp (Graphing Interface Only):
•
Off
: Thermal RF output Voltage is controlled manually by the user with the Output Control
Knob on the front panel of the generator.
•
On
: Thermal RF output Voltage increases automatically after the user has turned the output
on. Applicable only when Automatic Temperature Control is enabled (i.e. Set Temp is not
“Off”). The Output Control Knob is inactive.
•
Set Temperature (“Set Temp”):
•
Off
: Automatic Temperature Control is disabled. The generator will not control the Temperature
at any electrode or check for Temperature-related errors. Auto Ramp is set to Off and the
Thermal RF output Voltage must be controlled manually by the user with the Output Control
Knob. Use this setting with electrodes that do not monitor temperature, e.g. Cosman CR
Electrode.
•
37-90 °C
: Automatic Temperature Control enabled. Thermal RF output is automatically adjusted
to target the Set Temp value for each electrode.
•
Set Time: This setting determines the total amount of time that Thermal RF output is delivered to
each electrode. Once this time interval has elapsed for each electrode, electrode output is disabled
automatically.