Bosch Power Tools DMD4 manual Scanning in Wood-Detection Mode, To scan for wood objects, Wall

BM 2609140574 08-08 9/3/08 8:40 AM Page 7

Scanning in Wood-Detection Mode

The wood-detection mode actually detects more than just wood substructures (studs and joists). It may also detect metal and other dense materials such as water-filled pipes plastic pipes near the back of the surface in the wall or ceiling. To help identify wood substructures, first conduct a metal scan and mark the location of any detected metal items. Then conduct a scan in the wood-detection mode. Items that are detected in the wood- detection mode but not in the metal-detection mode are items that are possibly wood substructures.

To scan for wood objects,

1. Press the wood detection mode button 5.

•The wood mode indicator b and the “ZOOM” indicator d are shown in the display, the arrow below the “ZOOM” indicator d flashes, and the “AutoCal” calibration indicator g and the illuminated ring 1 go out.

2.Position the multi-detector onto the surface to be scanned.

3.Then press the “ZOOM” button* 4 AND KEEP IT PRESSED.

•Now the illuminated ring 1 lights up green, the AutoCal” calibration indicator g is displayed again, and the “ZOOM” indicator d as well as the arrow below it go out, all indicating that the multi-detector is calibrated for the wood scan.

4.After the multi-detector has

been calibrated and while continuing to press the “ZOOM” button 4, move the multi-detector uniformly over the surface without lifting it off or changing the applied pressure. During the scan, the

felt pads 8 must always have contact with the surface.

•When an object is detected, an amplitude is displayed in the main measuring indicator f. Move the multi-detector over the surface repeatedly to locate the object more precisely. After moving over the same area several times, the object can be indicated quite accurately: The illuminated ring 1 lights up red and a steady tone sounds as long as the multi-detector is over the object. The main measuring indicator f has the greatest amplitude (as represented by the number of bars shown in the main measuring indicator f ) over the center of the object.

Note: While the “ZOOM” button 4 is pressed during the wood scan, the “ZOOM” feature and ZOOM measuring indicator e are inactive.

Notes:

•If the scan (and thus calibration) starts over a dense object, such as a stud or a pipe, and is then moved across the surface, the main measuring indicator f and the arrow below the “ZOOM” function indicator d flash and the illuminated ring 1 flashes red, indicating a calibration failure. If this happens, move the detector horizontally to a different location and start the scan again (Fig. 4).

•During a wood scan, metal objects at depths between 3/4" and 2" may also be detected. To help distinguish between wood and metal objects, switch to metal- detection mode (see “Detecting Metal Objects”). When an object is indicated at the same location in the metal-detection mode, then it is likely a metal object or a wood stud or joist with nails or screws in it. To continue searching for wood objects, switch back to the wood-detection mode.

FIG. 4		STUD				STUD		STUD
			PIPE
	WALL
				MULTI-DETECTOR			MULTI-DETECTOR
					AT PROBLEM		AT GOOD
					LOCATIONS FOR		LOCATIONS FOR
					STARTING		STARTING
					“WOOD” SCAN		“WOOD” SCAN

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