C-SCOPE CS1220XD Instructions Manual page 11

Tune the detector with the search head 1-2 cm above the ground. Sweep the detector in an arc,
ensuring the head is level and as close to the ground as possible. Advance half a head length at a
time. Periodically ensure the tune level is correctly set by raising the head 1-2 cm, depressing the
RETUNE push button, then lowering the head and continuing the search.
When searching satisfactorily the SENSITIVITY control can be adjusted up to obtain the
optimum setting for the conditions (it will be necessary to retune the detector when this is done).
Meter Disc
This mode is similar to operate to the Meter Audio Disc. The only difference is the way the
CS1220XD responds to metal objects. All detected metal objects will be indicated by an increase
in loudness. The meter will indicate whether the target is accepted or rejected. In this mode the
audio pitch is constant.
Manual Control Modes
There are two manually set modes set by the FUNCTION switch.
i) GD1
ii) GD2
The operation is the same for both modes.
Initially GD1 or GD2 is selected. For a low to mid range of Discrimination GD1 is selected, and
for mid to high range of Discrimination GD2 is selected. See page 8 for an explanation of the low
and high range.
The detector is turned on and tuned with the search head 1-2 cm above the ground by holding in
the RETUNE push button and turning the POWER ON/OFF TUNE control until the audio tone is
just audible. The RETUNE button is then released. If necessary the detector may be reset to this
level by pressing the RETUNE button at any time.
The principle of the Manual Control mode searching is to set the detector to ignore the Ground
Mineralisation by momentarily depressing the GROUND push button. This enables the detector
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