Operating instructions

where items fall out on the control iron will be rejected at about the 8 or 9 o’clock setting.

Most pull-tabs will fall out at around the 2 or 3 o’clock position and screw caps are

eliminated at the fully clockwise position.

NOTCH SELECT & NOTCH WIDTH

Note: The notch function is disabled when the Discriminate Control is fully anti clockwise,

or the Notch Controls are fully anti clockwise.

The notch feature is capable of notching in or out the target. When the position of the Notch

Select is below the position of the Discriminate Control (but not fully anti clockwise) the

targets selected by the Notch setting will be notched in. If the position of the Notch Select is

above the position of the Discriminate Control, the targets selected by the Notch control are

notched out. As an example, set the Discriminate Control to reject foil. Now set the Notch

Select to reject Pull-Tabs. It is possible to set the Notch Width so that Pull-Tabs through to

Screw Caps are rejected. This approache works well for rejecting or accepting (ie picking up)

certain targets or bands of targets. To turn off the notch feature, turn the Notch Select and

Notch Width both fully counter-clockwise.

NOTCH WIDTH

This control works in conjunction with the Notch Select. The Notch Width Control varies

the notch width from a notch of zero width up to about 30 degrees. As a starting point for

single targets, set the Notch Width Control to about 12 o’ clock position. Normally you will

not have to change this width setting. Some operators may require a Notch Width that is very

narrow or very wide. Turning the Notch Width Control counter-clockwise will narrow the

width. Do not turn too far otherwise the width will become to small and the notching feature

will cease to work. When the control is turned toward the 5 o’ clock position more than one

or perhaps a band of targets can be notched.

OVERDRIVE Large Target Indication

Large targets or targets close to the search head can overdrive the instrument and produce

erroneous results. This could give the operator an incorrect audio and LED reading. If

overdrive should occur the audio will produce a “motor boat” sound and the Error LED will

light on the bar graph. Raise the search head to eliminate the overdrive and sweep the target

again.

PIN-POINT

Before you pin-point a target, hold the search head steady for about 1 second before you

press and hold the Pin-Point button. To accurately locate a target you can detune the

instrument over the target by releasing then pressing the Pin-Point Button. It is very

important to hold the search head still when detuning the instrument Failure to do so may

produce confusing audio responses.