Detecting Ac Voltage Presence (Vsense) - Keysight Technologies U1231A Guia Del Usuario

3 Multimeter Features

Detecting AC Voltage Presence (Vsense)

The Vsense detector is a non-contact voltage detector (for U1233A model only)
that detects the presence of AC voltages nearby.
You are advised to test on a known live circuit within the rated AC voltage
WARNING
range of this product before and after each use to ensure that the Vsense
detector works.
Voltage could still be present even if there is no Vsense alert indication. Do
not rely on Vsense detector with shielded wire. Never touch live voltage or
conductor without the necessary insulation protection or power off the
voltage source.
The Vsense detector may be affected by differences in socket design,
insulation thickness, and insulation type.
You are advised to measure voltage by using test leads through the VZ
CAUTION
AC V, or DC V function after using the Vsense function, even if there is no
alert indication.
Press and hold
position of the rotary switch except OFF).
If the presence of AC voltage is sensed, the multimeter's beeper will sound and
NOTE
the Vsense red LED at the top of the multimeter will turn on. The audible and
visual alert allows you to easily sense nearby AC voltage presence.
No resolution and accuracy of voltage measurement will be d isplayed in this
mode.
Press
sensitivity) or
86
for more than 1 second to enable the Vsense function (on any
to toggle the Vsense detector's sensitivity between
(low sensitivity).
Keysight U1231A, U1232A, and U1233A User's Guide
,
LOW
(high