9
When the instrument detects a metal edge,
the indicator light will change from green to
red and a beep will be heard. The detection
signal strength display area (18) will also be at
100%. Mark this point with a pencil using the
marker point on the top of the wall detector.
Continue moving the instrument in the same
direction until the detection signal strength
display area (18) drops below 100%. Slowly
go back until it reaches 100% again and mark
this second point with a pencil. The midpoint
of these two marks is the central location of
the measured metal object.
The instrument will also detect the centre
point of the metal object and display the
center display icon (17). It is best to use both
methods for a more accurate result.
If the red indicator light on the detector flashes and a beep is heard it has detected both a metal
and AC signal.
When the detector displays a non-magnetic
symbol, it indicates the current object being
measured is generally a wire or copper pipe.
When the detector displays a magnetic symbol, it indicates the current object being measured is
generally steel bar.
When the detector does not display a magnetic or non-magnetic symbol, it indicates the current
object being measured is generally an alloy.
When the alternating current symbol on the detector flashes, it indicates that there is an
alternating current signal nearby.
Note: When detecting metal, the detection depth value will be displayed on the display screen
along with the detection operation. The accuracy of the depth value is related to the shape and
material of the metal being measured, the distribution of the relative detector of the object being
measured, and the surrounding media properties of the object being measured. When the
measured object is standard steel bar or copper tube with a diameter of 18mm, the accuracy of
depth value is high. Otherwise, the depth value can only be used as a rough reference value.
WARNING! The detector may not be able to accurately indicate live wires in walls if internal
equipment fails or is not properly operated, so do not rely solely on the instrument to identify the
presence of dangerous live wires. Other evidence, such as construction drawings or visual
identification of wiring or pipe entry points, should be used.
%
N S
cm
N S
N S
non-magnetic
magnetic
Summary of Contents for 502291833
Page 106: ...106...
