8
8
THE FEATURES IN DETAIL
•
LED Bar Graph
•
Power/Sensitivity
•
Discriminate
•
Pinpoint button
•
Notch Select
•
Notch Width
•
SST Scan
The
LED bar graph
provides target identification, depth (in inches) and indicates that the
ground Scan is activated.
The
Power/Sensitivity
control
turns the unit on and sets the
level of sensitivity. When
searching adjust the knob clockwise until the LEDs begin to lock on as though it something
was detected, then back off slightly until the LEDs go out. This feature will require a little
experimentation to find the best setting.
The
Discriminate
control eliminates items in the sequence Iron, Silver Paper (aluminium
foil), new 10p, old 10p, Bottle Cap, £1 coin. Sweep a sample of the item you want to
discriminate over the search head while adjusting the control until it is rejected. Make sure
there is no other metal near the search head when setting the Discrimination.
The
Pin-Point
button can be used to locate the target more precisely and to measure depth.
When pin-pointing, move the search head close to the target, then hold the search head
perfectly still while you depress and hold the button. Sweep the search head in ever shorter
swings until the target response is a mere blip. That is the centre of the target.
Note the position
of centre mentally, and then holding the unit slightly off to one side,
depress and hold the button and move towards the centred target. Note the LEDs lighting
from left to right. Each LED indicates the depth of the target in inches and can also be used to
verify the position of the target.
Notch Select and Notch Width
both operate in conjunction with the Discriminate control.
These controls work together to notch-in or notch-out selected targets. The range of the
Notch Select is exactly the same as the Discrimination Control. Generally speaking any target
that can be discriminated out by the Discrimination Control can be notched in or out with the
Notch Control. For example, say a target is picked up when the Discriminate Control is at the
1 o’clock position, but when you advance the control to just
past the 1 o'clock position, then
the target is rejected. To notch this target simply set the Notch Select to the 1 o’clock
position. This will be true no
matter where the target falls out on the Discriminate control.
The width of the notch band is adjusted to the optimum setting with the Notch Width control.
The
SST Scan
is a visual indication that the detector ground scan is operating (the ground
scan always functions whether the SST Scan is enabled or not). To enable this feature the
pinpoint button should be held down momentarily when the detector is turned on. When
enabled the LEDs illuminate consecutively across the bar graph in a rapid scan movement.
Do not hold the pinpoint button down too long (more than 2-3 seconds) when turning the
