Minelab Excalibur II Instruction Manual download pdf (Page 16)

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In order to identify different targets, the Excalibur II rates

them along a scale. The conductivity and size of a target

determines where it will appear on the scale.

High-conductivity targets, for example, a US quarter,

Australian $1 coin, 1£ coin or

€.50 cent will produce a

high pitch signal.

Low-conductivity targets, for example, small alloy

coins, foil, 9 carat and fine jewellery, will produce a low

pitch signal.

Pull-tabs, rings, and certain coins will produce an

intermediate pitch depending upon the object’s

conductivity.

The size of objects will have some effect on the

conductivity rating for targets. Generally, the larger the

target, the higher the conductivity rating and the higher

the pitch.

Ferrous targets contain a large amount of iron (e.g. iron

nails or steel). Generally, ferrous objects are not wanted,

so appear on the left side of the scale.

Non-ferrous targets have little or no iron content, such

as pure gold, silver, copper and bronze. Generally non-

ferrous targets are more valuable, so appear on the right

end of the scale.

The Excalibur II can operate in two different modes.

This control selects either Disc (Discriminate) or

Pinpoint/All Metals mode.

Disc (Discriminate)

In Disc mode, the Discriminate control becomes active.

The Discriminate control is used to ignore various ferrous

objects. Typical ferrous objects encountered by treasure

hunters are nails, screws, washers and bits of wire. These

objects are generally not considered to be of value, so it

is a distinct advantage to be able to ignore them while

detecting. (pg. 28)

Pinpoint/All Metals

In Pinpoint/All Metals mode, the detector will produce

a sound on all metallic targets, detecting both ferrous

and non-ferrous targets. In this mode the Discriminate

control has no effect and the Excalibur II will respond

with the same pitch to all types of metal.

The signal response in the Pinpoint/All Metals mode

is much shorter than in Disc mode, making it easier to

poinpoint the exact location of a target before digging.

(pg. 30)

Disc or Pinpoint/All Metals

Selecting a Mode

Identifying Targets

Non-ferrous

Aluminium Foil Pull-tabs9K Gold Rings

Some Coins

18K Gold Rings, Brass,

Copper, Lead, Some Coins

Nail

Ferrous

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