General Tools and Instruments MSV350D - Manual (Page 8)

8
NOTES FOR VOLTAGE DETECTION
• Some walls may contain metallic fiber for
fireproofing; this will spread the area of voltage
pick-up. Placing your free hand on the wall
may cancel the effect.
• Rubbing or banging the instrument on the wall
may generate static electricity and cause a
false reading.
• Only a small amount of electricity will trigger
the detector and can cause false readings,
such as a badly insulated cable touching a
damp wall.
• When the instrument gives a “No Voltage”
reading, check the unit on a known voltage
source before touching any conductor.
• It will not detect shielded conductors (i.e. those
in metal conduct, the unit only shows presence
of METAL).
• Never take risks! If unsure, consult a qualified
electrician.
• The instrument can operate both Metal
Detecting and Stud Seeking simultaneously.
Since plumbing may exist at same location
inside the wall (see Figure 5), Metal as well
as Stud Indicators will come on together. If the
wiring that is carrying voltage is located at
the wall batten or stud inside the wall
(see Figure 5), Voltage as well as Stud
indicators will come on together.
In case of abnormal performance when
operating the unit, replace with a fresh battery.
Figure 5
Water Pipe
and Stud
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