[. . . ] Signals from targets likely to be valuable will give a high pitch tone. Signals from targets likely to be worthless will give a low pitch tone. For beach hunting switch the site selector (16) to `beach' and press the retune button. [. . . ] It is good detecting practice to press the retune button every few minutes or whenever you feel that that the detector may have drifted away from its sensitivity setting. Wind the search-head lead (9) around the stem as shown in the photograph. Adjust the stem for length according to your height (it's easier on your back if you can stand up straight while detecting) and tighten the twistlock stem adjuster (6). Check that the search-head (7) is parallel to the ground when being swept in an arc and tighten (be careful not to over-tighten) the search-head retaining screw (8). (Keep these parts clean - if they become covered in mud or sand wash and dry these parts at the end of a day's detecting. Don't allow any form of lubricant onto the rubber friction washers. ) Battery Push back the retaining clip and remove the cover (13) of the battery compartment (12). There are guide strips to ensure the battery is fitted the right way round. It should slide in easily to connect with contact strips in the compartment. Remove the battery if the detector is to be stored for more than a few days. Searching Technique: Try out a variety of targets to test the reaction of the audio target analysis system. Note how the detector signal changes and, as you gain experience of this feature, you will become adept at making decisions about whether to dig or not. Keep the search-head as close to the ground as possible, even at the ends of the arc where there is a natural tendency for the search-head to lift. Maintain a strict search pattern so that the area being searched is completely covered. (You will be more successful if you cover a small area of ground thoroughly than if you search a large area of ground in random fashion. [. . . ] However, the control box should be treated with similar care as any electronic product. Stem and search-head parts should be washed with tap water and dried at the end of a day's detecting. warranty & Service The CS770XD is guaranteed free of manufacturing defects as confirmed in our written warranty document. [. . . ]