ADA INSTRUMENTS Wall Scanner 80 Operating Manual page 7

INSTRUMENTS
If the measuring tool was subject to an extreme temperature change, allow it to the adjust to the ambient temperature before
switching on. Press ON/OFF button to switch on the instrument. After a short test the detector is ready for operation. The
measuring tool automatically enter the function mode of metal detection. It is necessary to calibrate the instrument if you
hear sound alarm and see the red light indicator.
The calibration method is: place the instrument on nonmetallic surface or hold it in the hand away from any materials. Press the
metal button 7 until you hear sound alarm and green light is lit. Sound alarm and green light indicator show that the calibration
has been finished. Release button 7 to detect metal objects.
DETECTION OF OBJECTS
The detection of metal objects
Press button 7 to detect metal objects. Symbol b (the metal detection indicator) is indicated on the display and the green light is lit.
Place the measuring tool onto the surface to be scanned and move it sidewards, when the measuring tool comes close to a metal
object, the amplitude of the measuring indicator g increases. When it moves away from the object, the amplitude decreases, at the
position of maximum amplitude, the metal object is located below the center of the sensor. Indicator f is displayed on the display
and a steady tone sounds.
Indicator d (detection depth value) is displayed on the display when scanning metal objects. The accuracy of depth value is a
relation of shape and position of scanning metal objects. Symbol a shows whether metal is magnetic or not.
The detection of wooden objects
When scanning for wooden objects, the detector must come close to the wall. Then press the wood detection button 6. Don't
move the instrument. Wait for the completion of calibration. When the calibration will be finished, you will see green light detec-
tor and there will be icon b (wood) on the display.
Place the measuring tool onto the surface and move around. When the detector come close to the wooden objects, the display
scale of g in the display will gradually increase. When the detector slowly moves away from object, the display scale will gradu-
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MEASUREMENT FOUNDATION