Measuring Current with A Current Transformer
If a current transformer is used for measuring current, you must use a current transformer with
internal secondary protection. Using a current transformer without protection may result in a haz-
ardous voltage resulting in a severe shock or death. In addition, this may cause damage to the instru-
ment.
Crest Factor
Exceeding the crest factor limit may result in an inaccurate or lower reading display. Do not exceed
the crest factor limit to avoid instrument damage and risk of electric shock. The crest factor limit is lis-
ted in the product data sheet at
www.keysight.com/find/truevolt-doc
.
Measurement Limits
To avoid instrument damage and the risk of electric shock, do not exceed any of the Measurement Lim-
its defined in the following section.
This product complies with EN/IEC 61326-2-1, for sensitive test and measurement equip-
ment:
When subjected to transient radiated and/or conducted electromagnetic phenomena, the
product may have temporary loss of function or performance which is self-recovering. Recov-
ery may take longer than 10 seconds.
When subjected to continuously present electromagnetic phenomena, some degradation of
performance may occur.
Unless otherwise noted in the specifications, this instrument or system is intended for indoor
use in an installation category II, pollution degree 2 environment per IEC 61010-1 and 664
respectively. It is designed to operate at a maximum relative humidity of 5% to 80% at 40 °C or
less (non-condensing). This instrument or system is designed to operate at altitudes up to
3000 meters, and at temperatures between 0 and 55 °C.
Measurement Limits
The Truevolt Series DMMs provide protection circuitry to prevent damage to the instrument and to protect
against the danger of electric shock, provided the Measurement Limits are not exceeded. To ensure safe
operation of the instrument, do not exceed the Measurement Limits shown on the front and rear panel,
and defined as follows:
Safety and Regulatory Information
16
Keysight True
volt
Series Operating and Service Guide
