
MAXIMUM and use the CREDO DDM Volume knob on the control box to
set the volume level.
Controls
The CREDO DDM has six rotary control knobs and three toggle switches
(two located on the front panel of the control box and one underneath the
control box).
DDM – Definite Discrimination Meter
The DDM meter is based on LED technology and provides a reliable visual
discrimination analysis in All-Metal Mode and Iron Rejection Mode. The bar
will light RED for non ferrous targets and will not indicate Iron targets.
Discrimination
This knob sets the level of the discrimination. Rotating the Discrimination
knob clockwise (from 0 to 10) will INCREASE the level so that Iron is
increasingly not detected (but high settings will result in the loss of
potentially good targets). Generally, the discrimination level should be set
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