Valleylab SurgiStat II, Service Manual, Page: 66 / 82

7-2 SurgiStat II Service Manual
Recommended Equipment for Troubleshooting
Use the following equipment to troubleshoot the SurgiStat II electrosurgical
generator.
• Digital multimeter with leads
• Electrosurgical analyzer or a true RMS voltmeter, such as a Fluke 8920A
• Wideband current transformer, such as a Pearson 4100
• Noninductive RF load resistors 200
Ω
, 500
Ω
, 800
Ω
, 1000
Ω
• Oscilloscope (dual channel) at 100 MHz
• Oscilloscope probes, (2) 10X and 1000X
• Valleylab footswitch
• Valleylab handswitching pencil (single use or reusable)
• Standard technician’s tool kit
• Miscellaneous test leads and cables
Troubleshooting the SurgiStat II
If the generator is not functioning properly, use the information in this section to
perform the following activities:
• Identify and correct the malfunction.
• If the system displayed an error code, take the appropriate action(s) to correct
the error condition.
Inspecting the Generator
If the SurgiStat II malfunctions, check for obvious conditions that may have
caused the problem.
1. Check the generator for visible signs of physical damage.
2. Verify that all accessory cords are properly connected.
3. Check the power cord. Replace the power cord if you find exposed wires,
cracks, frayed insulation, or a damaged connector .
4. Open the fuse drawer and inspect the fuse housing and fuses for damage and
corrosion.
5. Verify that the fuses are firmly seated. An internal component malfunction in
the generator can damage the fuses .
6. You may need to replace the fuses if the generator fails the self-test or stops
functioning. Refer to
Fuse Replacement in Section 6.