User manual C-SCOPE METADEC

[. . . ] You will then be able to obtain all of the advantages designed into your detector. It is also strongly recommended that you experiment with the detector's operations indoors in air, with various test samples, in order to learn to identify and understand the detector's capabilities and responses. Always remember that becoming a good metal detective is like becoming a good photographer or fisherman. Although It is an advantage to buy the best equipment having bought it, patience and hours of practice are needed to become proficient. 2 DIAGRAM 1. A. C. B. D. [. . . ] An increase in pitch or no change signa, ls a good object. In practice the operator concentrates on careful sweeping of the search head in large arcs, keeping the search head near to the ground and level. When a signal is received, the operator can then take the search Iclead away from the influence of the object, hold it steady at the operating height, carefully retune the detector and then carefully re-scan across the object to analyse and pinpoint the object. With practice, this procedure becomes automatic, and various combinations of audio and meter discriminate can be used to fully analyse doubtful objects. ADC ANALYTICAL METHOD OF OPERATION The METADEC II is really two detectors in one. 1. or 2. A totally programmed detector A full manual analytical ADC detector. The programmed method of operation as described on P. (C) is the recommended method of operation, because it ensures a high level of performance, but there are, however, sites and users requiring full manual control of both ground exclusion and discrimination. The METADEC II is therefore designed to operate as an Analytical ADC detector. There is a Ground Exclude - ALL Metal Mode which is selected on the meter console by depressing the ADC Ground push button (viI. There is also a Discriminate Mode which is selected by depressing the ADC Discriminate push button (vii). Usually the Ground Mode (vi) is used for general searching, and the Discriminate Mode is used for analysing a target object once it has been located. The ADC method relies on the Ground and Discriminate switches (vi) and (vii), and these will not operate if the AUDIO or METER DISCRIMINATION switches (iii) or (iv) are in the ON position. For reference a series of diagrams has been prepared to illustrate this. Diagram 5 Diagram 6 Diagram 7 Diagram 8 Diagram 9 Diagram 10 Diagram 11 Inland Site with Ground Effect. Method 1. Method 2. Recommended Settings Inland Site with Ground Effect If pre-set-ground is off. and all other meter console switches are off and manual ground exclude is set at O. and when the search head is lowered to the ground the signal on the meter falls to the left. then the site has NEGATIVE GAOUND EFFECT caused by iron mineralisation. If when the search head is lowered the signal rises to the right the site has POSITIVE GROUND EFFECT. or 6. . . n If the site has no Ground Effect, when the search head is lowered the meter signal will not fall or rise irrespective of where the manual ground exclude is set. There is no negative signal. l Only good objects register. When AUDIO or METER DISCRIM are ON th_ bunolll function solely 85 RETUNE BUTTONS and either may be used. DIAGRAM 5. Inland Site with Ground Effect Method 1. Any position, overridden by PRE-8ET GROUND Iil --. L~ Any position overriden by AUDIO and METER DISCRIM. Tune with RETUNE (viI of (viiI depressed 85 per TUNING (P. 6. 1 One of the Inland II Sening. ------~~~~~~~~~ DIAGRAM 6. Inland Site with Ground Effect Method 2. [. . . ] Join your local archaeological society if you are interested in ancient history. It is perfectly simple to extract a coin or other small object buried a few inches under the ground without digging a great hole. Use a sharpened trowel or knife to cut a neat circle or triangle (do not remove the plug of earth entirely from the ground); extract the object; replace the soil and grass carefully and even you will have difficulty in finding the spot again. 16 3. Help keep Britain tidy - and help yourself. Bottle tops, silver paper and tin cans are the last things you should throwaway. [. . . ]