User manual C-SCOPE CS1220

[. . . ] The other modes require more detailed explanation found in the following pages. IF A PROBLEM IS ENCOUNTERED REFER TO THE FULL INSTRUCTIONS. 1 CONTENTS: PAGE INTRODUCTION ASSEMBLY BATTERIES BATTERY CHECK CONTROLS AND WHAT THEY DO METHODS OF OPERATION GENERAL HINTS ACCESSORIES (OPTIONAL) AVAILABLE FROM C-SCOPE CHARGING BATTERIES THE IMPORTANCE OF THE RIGHT APPROACH SWEEPING TECHNIQUE METAL DETECTING AND THE ENGLISH LAW CODE OF CONDUCT FOR METAL DETECTOR USERS CARE OF YOUR DETECTOR TROUBLESHOOTING 4 4 4 5 6 9 13 15 16 16 17 18 19 19 20 2 Controls C-Scope CS1220 A B C D E A B C D E F G H I J K L M N O Battery Compartment Upper Stem & Handle Grips Din Plug & Socket Stem Connecting Nut Cable Lower Stem Search Head Fastener Power On / Off Tuning Signal Meter Sensitivity Discrimination Ground Select Retune Discrimination Select Function F G 3 INTRODUCTION To protect your investment complete both sections of the enclosed guarantee card and return to C-Scope. This is particularly important in order to obtain the free second year parts guarantee. In the event that your detector should ever require to be serviced, this package will be most suitable for postal protection. [. . . ] Periodically ensure the tune level is correctly set by raising the head 1-2 cm, depressing the RETUNE push button, then lowering the head and continuing the search. When searching satisfactorily the SENSITIVITY control can be adjusted up to obtain the optimum setting for the conditions (it will be necessary to retune the detector when this is done). All detected metal objects will be indicated by an increase in loudness. Manual Control Modes There are two manually set modes set by the FUNCTION switch. i) GD1 ii) GD2 The operation is the same for both modes. Initially GD1 or GD2 is selected. For a low to mid range of Discrimination GD1 is selected, and for mid to high range of Discrimination GD2 is selected. This is a useful coincidence because it means that Ground Exclusion and Discrimination against iron are possible at the same setting on wet sand with the CS1220. The Ground Exclude setting for beaches will vary significantly and in practice it is possible to reject silver paper and ground exclude on a severe beach. GD1 is the recommended mode setting and Discriminate level can be adjusted to suit the particular conditions. It is essential when operating on a beach that the Search head is kept at a constant height above the surface. It may also be necessary to reduce the SENSITIVITY further because of variation in the salt content over the area searched. Detecting To test for the type of signal you will get, take a coin or metal object and with the detector set up on a table tuned as previously described, move the metal object towards and across the search head. You will note that the volume will increase quickly as the metal object passes across the search head, with the loudest sound occurring when the search head is immediately centred over the metal object. As the object passes beyond the search head the sound will quickly fade. Since the detectors employ a Total response search head, the object can be detected across the full width, back to front, of the search head. Pinpointing (i) The strongest signal will always be received when the object is directly beneath the centre of the head (see X in the diagram below). To pinpoint the find, stop the search head when you are directly over the target object, then move the search head through 900 and sweep again, thus forming a cross with the two sweeps as show in the diagram. 14 (ii) To `focus' the target signal still further raise the search head, retuning if necessary, and pass the search head over the object until only a faint signal is heard. The faint signal will then be occurring at a point X under the centre of the head (see diagram). More accurate pinpointing, particularly of deep buried objects can be achieved by finding the centre of the target object as described above and fixing its position in the `minds eye'. Turning your detector through 900 and sweeping across the target again will give a second reading, accurately determining the centre of the object. With little practice, size shape and depth of an article may be estimated in this way before digging. ACCESSORIES (OPTIONAL) Available from C-Scope. Headphones: Headphones not only extend battery life but improve sensitivity by cutting extraneous noise. The headphones should be fitted with a standard stereo 1/4 inch (6. 35 mm) jack plug. [. . . ] Do not leave gates open when crossing fields, and do not damage crops or frighten animals. It is simple to extract a coin or other small objects 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. Bottle tops, silver paper and tin cans are the last thing you should throw away. [. . . ]