U1272A Datasheet, PDF (4/22 Pages) Keysight Technologies – U1270 Series Handheld Digital Multimeters

4 | Keysight | U1270 Series Handheld Digital Multimeters - Data Sheet
Key Functions
Low impedance mode
Stray voltages are usually found in non-
energized electrical wiring adjacent to
powered wires due to capacitive or induc-
tive coupling between these wires. The low
impedance mode serves to eliminate false
readings by dissipating these stray voltag-
es thus improves safety and measurement
efficiency during voltage measurement.
Peak detect at 250 µs
The peak detect function allows you to
capture the engine or motor startup tran-
sient as fast as 250 µs.
Figure 2. U1272A helps you identify the presence of stray voltage on a disconnected wire running parallel with the wire powering up the
VFD to an industrial motor. The image on the right shows the U1272A in low impedance mode.