Model 2601B-PULSE System SourceMeter® Instrument User's Manual Section 4: Operation
2601B-PULSE-900-01 Rev. A August 2021 4-17
Connections to LO on the 2601B-PULSE are not necessarily at 0 V. Hazardous voltages could
exist between LO and chassis ground. Make sure that high-voltage precautions are taken
throughout the test system. Alternatively, limit hazardous levels by adding external
protection to limit the voltage between LO and chassis. Failure to make sure high-voltage
precautions are used throughout the test system or a failure to limit hazardous levels could
result in severe personal injury or death from electric shock.
Figure 50: Noise shield
3 LO connected to noise shield
Using shielding and guarding together
The following figures show connections for a test system that uses a noise shield, a safety shield, and
guarding. The guard shields are connected to the driven guard of the SMU. The noise shield is
connected to LO. The safety shield is connected to the chassis and to protective earth
(safety ground).
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