Monitor Circuits - Erbe VIO 300 S Service Manual

6 • Maintenance and servicing
NE monitoring of critical resis-
single surfaced
return electrodes
58
/ 64
• The test setup is designed as shown in the illustration above.
• The test specimen is connected to the power supply via the power
cord.
• The levels of power are determined with the HF power meter. The
measuring cables are plugged into the HF power meter direct.
Test procedure
1. Set test specimen to:
EndoCut I, Effect 1, Cutting duration 1, Cutting interval 1
2. Set HF power meter to:
RL = 1000 ohms
3. Connect the probe of an oscilloscope to AE and NE.
4. Set oscilloscope to:
200 V / Div, 20 ms
5. Activate test specimen via the CUT button on the electrode handle.
6. Determine the duration of the cutting pulse. The tolerance range is 90
to 110 ms.
1. Set test specimen to:
EndoCut Q, Effect 1, Cutting duration 4, Cutting interval 2
2. Set HF power meter to:
RL = 1000 ohms
3. Connect the probe of an oscilloscope to AE and NE.
4. Set oscilloscope to:
200 V / Div, 100 ms
5. Activate test specimen via the CUT button on the electrode handle.
6. Determine the duration of the cutting pulse. The tolerance range is
320 to 380 ms.

Monitor circuits

Testing and measuring equipment
tance
Erbe Art. No.
for
20194-070
20194-075
20100-033
20100-101
20189-302
Description
Patient cable NE
or
Patient cable NE, international
Adapter cable NE
VIO Testbox Symmetry/Resistance (NE
asymmetry/critical resistance)
Dual-pedal footswitch