Assessments - 3, GPA: 3.7
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Figure 4 6. Plug in the search coil’s plug into the search coil jack on the Tool’s control panel. Make sure that the pins on the plug align with the holes in the jack (see Figure 4). Note: The search coil’s plug fits into the connector only one way. Never force the plug; the plug could become damaged. To disconnect the plug, never pull on the cable; always take hold of the plug and pull it out of the connector. Loosen the knob at the search coil’s 7. end, then adjust the search coil’s end, then adjust the search coil to the desired angle. The search coil should be parallel with the ground. Tighten the knob enough to keep the search coil from rotating or wobbling. Figure 5 8. To insert the arm support (see Figure 5), loosen the knob at the base of the handle. Insert the arm support and tighten the knob to hold the arm support in place. Battery Installation The Tool is powered by three, 9 Volt batteries. Battery installation is described below: Figure 6 1. If the Tool is on, turn MODE to OFF (see Figure 6). 2. Press the right battery compartment cover’s tab and slide the cover in the direction of the arrow (see Figure 7). Place one 9 Volt bat3. tery into the battery compartment on top of the ribbon. Place Figure 7 the battery so that it matches the polarity symbols (+ and -) that are marked inside the compartment. Replace the right battery compart4. ment cover. 5. Press the left battery compartment cover’s tab and slide the cover off in the direction of the arrow (see Figure 8). Place two 9 Volt bat6. teries into the battery compartment on top of the ribbons, matching the polarity symbols (+ and -) marked. Replace the left battery compartment cover. Note: The life of the batteries can be extended by using headphones (not included), which require less power than the built-in speaker. See the section on headphones below. CAUTION! Always remove old or weak batteries; old batteries can leak chemicals that can damage electronic parts. If you do not plan to use the Tool for a week or more, remove the batteries. Use only fresh batteries of the required size. Do not mix old and new batteries or different types of batteries. Testing Batteries Test the battery power when the Tool does not turn on, or has weak volume, or will not tune properly or operates erratically. Set the MODE to VLF (very low frequency). To test the batteries in the left battery compartment, set BATT TEST to B1. To test the battery in the right battery compartment, set BATT TEST to B2 (see Figure 9). Figure 10If the pointer on the viewmeter is within the BATT scale’s green area, the batteries have enough power. If the pointer is not within the green area, the batteries need to be replaced (see Figure 10). Meter Adjustment Figure 11Set MODE to OFF. Using a screwdriver, adjust the alignment control until the pointer lines up with O on the scale (see Figure 11). Figure 9 Figure 8 Earphone Use Figure 12Stereo earphones (not included) can be connected to the Tool. Using earphones saves battery power and makes it easier to identify changes in the sound patterns. Earphones are connected to the ear jack on the side of the Control Housing (see Figure 12). When using earphones, protect your hearing by: Set the volume to the lowest setting a. before you begin listening. Adjust the volume to a comfortable level. Never listen at extremely high volb. ume levels; permanent hearing loss can result. Once the volume is set, do not c. increase it. Over time, your ears adapt to the volume level, so a volume level that does not cause discomfort might still damage your hearing. Operation This tool distinguishes between ferrous and non-ferrous metals. Ferrous metals contain iron. Non-ferrous metals do not (examples: gold, silver, copper, platinum, aluminum, lead, and zinc). When the Tool senses a metallic object, the meter reading changes and the detector might sound a tone. The reaction depends on what metal is detected. Basic Operation Set the 1. BATT TEST to OPERATE. 2. Hold the detector comfortably, then as shown in Figure 13, rotate MODE to the desired position. Set it to • VLF to test the battery power and adjust TUNE and GROUND (see directions below and on page 8). Set it to • TR1 to detect extreme differences in metals, such as between gold and iron. The difference shows on the meter (iron as a ferrous metal, gold as a non- ferrous metal). Set it to • TR2 to detect finer distinctions between metals. For example, between aluminum and gold. Tuning TUNE fine tunes the balance between the tool’s receiver and the transmitter circuitry, to provide consistent pointer and tone indications. Figure 14Figure 15To Tune, do the following and see Figure 14 and 15, above: Rotate 1. VOLUME to the 10 o’clock position. Set 2. MODE to VLF. Figure 13 Set 3. GROUND, DISCRIMINATION, and SENSITIVITY to mid-range. Figure 16 4. Hold the search coil at least 1 foot away from the ground and any metal object. Hold down the red button on the handle and slowly rotate TUNE until the viewmeter ...