Nexus Metal Detectors User Manual page 4

CONTROLS
The Nexus Coronado has five primary rotary control knobs (six rotary
control knobs for Nexus Coronado SGE), located on the front of the control
box and two toggle switch controls (one toggle switch control for Nexus
Coronado SGE) located on the back of the control box..
Volume Control with On-Off Switch It is located at the top left side on the
front of the Control box and it is combined with the Volume control knob.
After turning on the switch the audio signal is quiet. Turning the Volume
Control Knob to the greatest digit 10 on the scale will allow stronger audio
signals.
Threshold This knob is located at the bottom left side on the front of the
Control box. It sets the level of the threshold tone. The Nexus Coronado
may be operated in silent mode, with no audible background tone or with
this tone set to give a slight tone level. In order to readily discern the
faintest and smallest of signals, operation with a slight background tone is
recommended.
Sensitivity This knob is located between the threshold and the Ground
Balance knobs on the front of the Control box. It controls the level of
sensitivity of the responses. The sensitivity level setting will depend on the
soil conditions.
On contaminated or highly mineralized sites, it may be necessary to reduce
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