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D E TA I L E D O P E R AT I N G I N S T R U C T I O N S
Set the Tone control
•
Adjust the Tone control until the threshold is at a comfortable tone
for your hearing. Interpretation of the target signals involves
understanding the difference between the rising and falling tone
and volume of the threshold in response to different targets.
HINT
Setting Tone to a high pitch may be more fatiguing, but is
more suitable for identifying the faintest target signals.
Set the Signal control
The human hearing is sensitive to changes in tone, so the operator
is more likely to hear a target signal when both the volume and the
tone change rather than volume alone.
The Signal control gives the operator, the ability to choose between
a target signal that has a large variance of tone or one which has
less variation.
High variance can give the operator more signal definition to
interpret, however in highly mineralised ground this high variance of
signal may cause confusion and a lower setting preferred.
Soil switch
Use this switch to optimise the detector's ability to detect in different
ground conditions (see page 24 for full description).
Rx switch
Selection of different positions of this switch, changes the
electromagnetic field of the coil thus giving better performance in
certain environments (see page 25 for more information).
Normal has the coil operate in a conventional Double D search
pattern with all the same advantages and disadvantages.
IMPORTANT
You will need to
re-ground balance every time you
select a new position for either the
‘Soil’ or ‘RX’ switches.
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E (Enhance) changes the way the coil transmits and receives its
signals. Operating in enhanced, the coil has some of the
characteristics of a Monoloop coil. Use of Enhance will often
increase the sensitivity of the detector but may also be a little more
unstable in heavily mineralised ground. Pinpointing will be off to the
left of centre.
Cancel changes the electromagnetic field of the coil so that it is
particularly stable in areas of electrical interference. This position is
ideal in areas where the operator wants to detect close to suburbia
or under power lines etc.
Set the Tune control
Fig u r e 5 . 1
Tuning should be done initially with the RX switch in Normal or in
E (Enhance). If the interference is still severe after completing the
tuning operation, change the RX switch to Cancel and then re-tune
detector again.
•
Hold the detector at waist height and the coil vertical.
•
Keeping the coil vertical, slowly move it through a half-circle
around your body.
•
Listen for an increase in interference as you move the coil.
•
When the interference is loudest, stop moving the detector, hold
it motionless in that position and momentarily press the Tune
switch.
The detector will then scan through the available range of
transmission frequencies and automatically select the frequency
that results in the greatest reduction of noise from
electromagnetic interference.
•
The end of tuning process (which takes approx. 60 sec.) is
announced by three beeps.
NOTE
While the detector is selecting the preferred
frequency, the coil must be kept motionless and clear of
metal objects.
Figure 5.1
T h e t u n i n g p r o c e s s
P 0 5 1 7 - A 2
IMPORTANT
When tuning detector in close
proximity to other detectors, each
operator needs to take turns
tuning. Do not try to tune two
detectors at one time.
