DTI GmbH & Co. KG
Operating the Detector
The first start should be made with the coil being in the air. So you will learn the be-
haviour of the detector for a known metal object. The coil is a sensitive receiver and
antenna for pulsing signals., which for example are transmitted by monitors, televi-
sions and short wave instruments. So no of this type of instruments should be
switched on near the test location. You may eliminate interference signals by turning
or tipping up of the coil. There shouln’t be any big metals within a distance of 1,5 –
2 m (boxes, plates).
Place the coil (28 cm) in a fixed position. You should be able to reach it from all sides
with an object. Connect the coil. Please obey that the connector fits right. In case of a
loose contact the power amplifier can be destroyed.
Switch the detector on. After starting press pushbutton ‘F1’. The detector starts after
a few seconds with its factory settings and the operation display. The thermal starting
phase begins. A loaded rechargeable battery needs some minutes until it reaches to
its actually voltage. Also the electronic gets stabilized. Press the pushbutton
‘REFERENCE’ – from time to time. There must be no metal in the near of the coil
otherwise this object will be stored in the compare memory. Take an object of your
choice and move it to the coil. Comes the object in the detection area the graphic
display discribed under ‘Detectioin Display’ and the loudspeaker are showing a re-
sponse. Hold this point of detection in memory. Take the object away und press
‘REFERENCE’.
Now repeat this test. You will recognize that the detection depth has increased.
The compare memory has been loaded with current values in air without object. Now
bring the object so close to the coil that the tone or the all metal display are near the
maximum. Now press the pushbutton ‘REFERENCE’ again. When you now try the
object again you will recognize that you will have to get closer to get a signal.
This example shows you what happens when you press the pushbutton
‘REFFERENCE’ during working in the field.
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