9
5. EMI (Electromagnetic Interference)
The searchcoil produces a magnetic field and then detects changes in that
magnetic field caused by the presence of metal objects. This magnetic field
that the detector creates is also susceptible to the electromagnetic energy
produced by other electronic devices. Cell phones, cell phone towers,
power lines, microwave ovens, lighting fixtures, TVs, computers, motors,
etc… all produce EMI which can interfere with the detector and cause it to
beep when no metal is present, and sometimes to beep erratically.
The SENSITIVITY control lets you reduce the strength of this magnetic field,
and therefore lessen its susceptibility to EMI. You may want to operate at
maximum strength, but the presence of EMI may make this impossible, so if
you experience erratic behavior or “false” signals, reduce the sensitivity.
HEADPHONE JACK
This detector has a 1/4” headphone
jack.
It works with any stereo headphone
that has a 1/4” plug.
When the headphone jack is
connected, speaker volume is
disabled.
USING
HEADPHONES
Using a detector with headphones
facilitates detection of the weakest
signals and also extends the battery
life.
It also allows you to hear subtle changes in the sound more clearly, particularly
if searching in a noisy location. For safety reasons, do not use headphones
near traffic or where other dangers are present. This device is to be used with
interconnecting cables/headphone cables shorter than three meters.
THE BASICS OF METAL DETECTING
12
HOW DEEP WILL IT GO?
The Eurotek
®
Metal Detector will detect a coin-sized object to a distance of
about 20 cm (8”) from the searchcoil at maximum sensitivity. Large metal
objects can be detected to a depth of more than a meter. Detectability is directly
related to the size of the metal object -- the larger the object, the deeper it can
be detected.
Accuracy of target identification is also related to distance from the searchcoil.
Targets on the fringe of detection will have less accurate Target-IDs than targets
closer to the searchcoil.
2. DISC (Discrimination)
The DISC control allows the user to eliminate a range of targets from detection.
The user selects a 2-digit number; targets less than or equal to this setting will
not be detected.
Be aware that some irregular targets, and targets on the fringe of the detectable
range, may induce different Target-ID numbers on subsequent passes. As such,
it may be possible that a target intended for elimination may not always be
eliminated.
Press
to illuminate the DISC menu icon.
With each press of
or
, the DISC setting changes by one.
Press-and-Hold
or
to rapidly advance or reduce the DISC setting.
MENU SELECTIONS
Bulgarian 10
stotinkas, 1999
Bulgarian 50
stotinkas,
1999 - 2007
Peter I, 1705,
Silver, 0.25 gr.
Mikhail
Fedorovich,
1613-1645
50 kopeek
Nikolay II,1896,
Silver
5 kopeek,
Ekaterina II, 1781
2 kopeek,
Alexander I, 1816
10 ct Napoleon III
(bronze, France)
