User manual TEKNETICS DELTA 4000

[. . . ] METAL DETECTOR OWNER'S MANUAL If you do not have prior experience with a metal detector, we strongly recommend that you: 1) Adjust the Sensitivity to a low setting in the event of false signals. Always begin use at a reduced sensitivity level; this device is designed to work "into-the-noise", so expect chatter at high sensitivity. Many household appliances emit electromagnetic energy, which can interfere with the detector. If conducting an indoor demonstration, turn the sensitivity down and keep the search coil away from appliances such as computers, televisions and microwave ovens. [. . . ] With each press of , a category description will reappear, indicating that targets classified in that category will again be detected. Discrimination is a cumulative elimination system. Targets can be eliminated from left to right on the scale, with each additional press of , resulting in more objects being eliminated from detection. 3. to notch target categories IN or OUT while the NOTCH Whereas the discrimination feature eliminates all categories sequentially from detection, the NOTCH control allows you to selectively include or exclude target categories from detection. With each press of or , the notched category moves across the display screen. As you move the position of the notched category, you are changing the detection status of the selected category. · If a target category was previously eliminated (word not visible) then notching that category will return it to detection. · If a target category was previously retained (word is visible) then notching that category will remove it from detection. Only one target category at a time can be selected for notching. To notch multiple or categories in or out, wait for the icon to stop flashing and then press again to select the next notch. Each time you press to select notch, followed by , the notch program will begin by changing the status of the IRON segment 12 OPERATION and CONTROLS cont. MENU SELECTIONS continued NOTCH continued At any time, the display screen indicates the current category notches or discrimination settings. Any category whose description is not visible will not be detected. For example, the following settings tell us that: · The nickel, dime, quarter and 50¢ categories will be detected. · All other categories of targets (iron, foil, alum and zinc) will not be detected. 4. VOLUME While the VOLUME line is highlighted, use speaker volume. and to change the The default volume setting is 8. At levels 1, 2 and 3, high tones will be inaudible or barely audible. The speaker volume will diminish as battery voltage drops. For maximum speaker volume, use 1 or 2 tones, as the low and bass tones generate the loudest sounds. Volume can be set while in either the DISCRIMINATION or ALL METALS modes, but only one setting applies to both modes. Volume in the two modes cannot be set independently. 13 OPERATION and CONTROLS cont. MODE SELECTIONS There are three selections under the MODE section of the display. · Press · Press to toggle between DISCRIMINATION and ALL METALS. [. . . ] Many gold rings will also register here. ALUM: Older pull tabs, which always detached completely from the can, register here. Many medium size gold ring also register here. 18 Large and irregularly-shaped objects will yield less reliable depth readings When passing over an object, the indicators will light up and stay illuminated for three seconds. [. . . ]