User manual

3Clamp Meter Features 
Detecting AC Voltage Presence (Vsense)
54 U1190A Series User’s Guide
Detecting AC Voltage Presence (Vsense)
This measurement function is applicable for U1192A,
U1193A, and U1194A models only.
The Vsense detector is a non- contact voltage detector that
detects the presence of AC voltages nearby.
Set up your clamp meter to enable the Vsense function as
shown in Figure 3- 3.
WARNING
• You are advised to test on a known live circuit within the rated AC
voltage 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 the 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.
CAUTION
You are advised to measure voltage by using test leads through the 
AC V or DC V function after using the Vsense function, even if there is
no alert indication.
NOTE
If the presence of AC voltage is sensed, the clamp meter’s beeper will
sound. The audible alert allows you to easily sense nearby AC voltage
presence.
No resolution and accuracy of voltage measurement will be displayed in
this mode.
U119XA UG.book Page 54 Thursday, September 15, 2011 4:03 PM