www.
metaldetectors
.co.uk
Metal
Detectors
1 Angela Street
Mill Hill, Blackburn
BB2 4DJ
t:
+44 (0)1254 55887
f:
+44 (0)1254 676901
e:
viking@metaldetectors.co.uk
detected. In this mode the detector is silent until
an object is detected when it emits a sharp beep.
The sound occurs as the centre of the search
head passes the target object. This is the only
detection mode that provides discrimination.
All-Metal Mode
This mode provides a continuous faint audio
threshold tone, allowing the smallest signals to
be detected. In this mode the audio output will
continually, but slowly, retune to the threshold
level preventing the detector from drifting out of
tune, but requiring the search head to be kept
moving to detect items. This mode is not
available when detecting in Beach mode.
Non-Motion Mode
Similar to the All-Metal mode, this mode also
provides a faint audio threshold through the
speaker or headphones. In this mode the
detector does not automatically retune, but
enables the search head to be held stationary
over the target to allow accurate pinpointing. In
some cases changes in ground conditions and
temperature may cause the threshold to vary
from its faint preset level. In this case the
detector needs to be retuned,
Membrane Keypad
All the VK40's functions are controlled from the 5
keys on the front panel of the detector. Please
read this section carefully to understand how
these controls operate with each other.
Pressing this key once will turn the
detector on. When the detector has com
pleted its startup sequence and is in
detect mode, pressing this button again
will turn the detector off.
▼
When the detector is operating, this key
will switch from the current detection
mode to Motion mode. When the detector
is in Menu mode, this button will decre
ment the currently selected setting.
P
When the detector is in either Motion or
All-Metal detection modes, holding this
key will switch the detector into Non-
Motion mode until the key is released.
This allows for accurate pinpointing.
When the detector is working in Non-
Motion, holding this key retunes the
audio threshold to its preset level.
▲
When the detector is detecting in Motion
mode, pressing this key will switch to All-
Metal mode. Subsequent presses will
alternately switch the detector between
Non-Motion and All-Metal modes. When
the detector is in Menu mode, this key
will increment the currently selected
setting.
MENU
This key switches the detector into Menu
mode, allowing the Sensitivity, Discrimination
and Ground settings to be adjusted and the Auto
Power Off feature to be enabled or disabled.
Detector Setup
The VK40 provides a menu system to alter the
detector settings which can aid with detecting.
These settings are:
Discrimination
,
Sensitivity
and
Ground
. The effect of changing the value of
each of these is described below:
Discrimination
The Discrimination setting is used to alter the
detectors ability to ignore unwanted metal
objects when used in Motion mode. The higher
this setting, the more discriminating the detector
will be. When set at 0 all metal items will be
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