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Section 1: Introduction
Series 3700A System Switch/Multimeter User's Manual
1-4
3700AS-900-01 Rev. A / July 2011
Dangerous arcing can result (even when the multimeter is set to a voltage range) if the
minimum voltage spacing is reduced in the external connections. For details about how to
safely make high energy measurements, see High-energy circuit safety precautions in the
Series 3700A Reference Manual.
As described in the International Electrotechnical Commission (IEC) Standard IEC 664, the
Series 3700A is Installation Category I and must not be connected to mains.