Selective Metal Detector SOREX PRO. Operating manual.
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significant (over 10 degrees) ambient temperature gradients, i.e. gear the device to
changed temperature conditions. To initiate forced (semi-
automatic) adaptation hold button
with further
shutdown of the device.
The device automatically initiates the ground
balancing (GB) when the searchcoil adaptation is over. The
ground balancing is a shift of the ground vector to the
horizontal axis. It shall be made in compliance with guidelines
of the Ground Balancing chapter. In previous models of the product line the value
(degrees) of this shift was equal to the GB value and it was displayed in the bottom left
part of the display after the sound indication.
However, each unit had unique GB level due to the spread of phase
characteristics of searchcoils. For Sorex PRO the aforementioned phase shift (with a
random pattern) is taken as default 0 for the GB behavior in the searchcoil adaptation
mode.
In this case all further GB phase corrections made during the search will be
performed against this predefined 0-level.
What are the advantages of this approach?
1.
The standardization principle is used in all units: all GB shift values are similar.
For example, if several devices get right GB in the adaptation mode in a certain
temperature and in one area, and then perform correction in operation balance
in changed temperature conditions, all devices will show relatively similar GB
phase shift.
2.
It is more comfortable to trace from 0 all balance changes caused by
temperature and mineralization. It enables better control over the GB quality
and better device overall performance and quality control. Such approach
allows quick and efficient evaluation of area cleanness for the balancing.
Nevertheless, we still display the value of the technically-dependent phase shift (F0)
in the top left part of the screen with forced GB phase zeroing in the adaptation mode.
This information is intended for the device testing during manufacture. To exit GB mode
and enter the search mode also press
.
If your device is equipped with several interchangeable searchcoils, we recommend
you, in case of idle periods (for instance, seasonal stop-over), to make hard-reset of the
detector before you start the search (attach the searchcoil
and turn on the device
holding). It should be mentioned here that the device has a built-in diagnostic system for
the searchcoil excitation circuit.
In case of circuit discontinuity and disconnected converter
the device onscreen message says "ADAPTATION OF THE COIL
IS IMPOSSIBLE" with the appropriate icon in the right part of
the screen showing the searchcoil symbol.
