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3
Multimeter Features
Non-Contact AC Voltage Detection (Vsense)
Vsense is a non-contact voltage detector that detects the presence of AC voltages nearby.
– You are advised to test on a known live circuit within the rated AC voltage range of
WARNING
this product before and after each use to ensure that Vsense works.
– Voltage could still be present even if there is no Vsense alert indication. Do not rely on
Vsense with shielded wires. Never touch live voltage or conductors without the
necessary insulation protection or switching off the voltage source.
– Vsense 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 voltage measurement
CAUTION
function after using Vsense, even if there is no alert indication.
1 Press and hold
and
If the multimeter senses the presence of AC voltage, the multimeter will beep and the red
NOTE
Vsense LED at the top of the multimeter will turn on. The
on the LCD. The audible and visual alert allows you to easily sense the presence of AC
voltage in close proximity.
No resolution and accuracy of voltage measurement will be d isplayed in this mode.
2 Press
sensitivity (Lo.SE).
3 Press and hold
When Vsense is disabled, the multimeter will return to the primary function of the current
NOTE
rotary knob position regardless of what function it was in before Vsense was enabled.
98
Vsense
to enable Vsense (on any position of the rotary switch except
).
OUT
to toggle the Vsense's sensitivity between high sensitivity (Hi.SE) or low
Range
Vsense
again to disable Vsense.
symbol will also be displayed
Keysight U1281A/U1282A User's Guide
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