Bosch DMD4 User Manual

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IMPORTANT: IMPORTANT : IMPORTANTE:

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Operating/Safety Instructions Consignes de fonctionnement/sécurité

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DMD4

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For English Version

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Versión en español

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FIG. 2

i h

5 6

FIG. 1 FIG. 3

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Safety Rules for Multi-Detector

WARNING

Read all instructions. Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury.

SAVE THESE INSTRUCTIONS

The multi-detector’s ability to detect objects is affected by the proximity of other equipment that produce strong magnetic or electromagnetic fields, and by moisture, metallic building materials, foil-laminated insulation materials and/or conductive wallpaper.

The multi-detector’s ability to detect wood substructures (studs) is also affected by inconsistency on the thickness of the surface material, such as plaster and lath.

It is possible that there may be metal, wood or wiring or something else, such as plastic pipes, beneath the scanned surface that is not detected.

WARNING

to locate items below the scanned surface.

Use other information sources to help locate items before penetrating the surface. Such additional sources include construction plans, visible points of entry of pipes and wiring into walls, such as in a basement, and standard 16” and 24” stud spacing practices.

WARNING

drill, router, saw or nail), always shut off the electrical power, gas and water supplies.

items when operational can result in personal injury.

The detector alone should not be relied on exclusively

Before penetrating a surface (such as with a

Cutting, drilling, etc… into these

Functional Description

Optimal operation of the multi-detector is possible only when the operating instructions and information are read completely, and the instructions contained therein are strictly followed.

SAVE THESE INSTRUCTIONS

The multi-detector is intended for the detection

INTENDED USE

of metals (ferrous and non-ferrous metals, such as pipes, metal studs and rebar), wood studs and joists, and “live” wires/conductors in walls, ceilings and floors.

PRODUCT FEATURES

The numbering of the product features shown refers to the illustration of the multi-detector on the graphic page 2.

1 Illuminated ring 2 Marking hole 3 Display 4 Metal mode “ZOOM” button (also used for

wood calibration)

5 Wood detection mode button 6 Metal detection mode button

7 “On/off” button 8 Felt pads 9 Sensor area 10 Battery lid 11 Pencil for marking (removable) 12 Latch of battery lid

“Live” wire indicator

a b Wood detection mode indicator c Metal detection mode indicator

“ZOOM”

d e “ZOOM” measuring indicator f Main measuring indicator g “AutoCal” calibration indicator h Magnetic metal indicator i Non-magnetic metal indicator j Switched-off audio signal indicator k Battery indicator

DISPLAY ELEMENTS

indicator

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Technical Data

DIGITAL MULTI-DETECTOR DMD4 Article number 3 601 K10 010 Maximum scanning depth*:

Ferrous metals 4" / 100 mm Non-ferrous metals (copper) 3-1/8" / 80 mm Copper wiring (live) 2" / 50 mm Wood Substructures (studs) 3/4" / 20 mm

Automatic switch-off After approx. 5 min Operating temperature 14 °F 122 °F

Storage temperature – 4 °F –158 °F

Battery 1 x 9 V 6LR61 Rechargeable battery 1 x 9 V 6F22 Operating lifetime (alkali-manganese batteries) Approx. 6 h Weight according to EPTA-Procedure 01/2003 0.53 lbs/ 0.24 kg

* Depends on material and size of objects as well as material and condition of structure.

** Less scanning depth for wires/conductors that are not “live”.

Please observe the article number on the type plate of your multi-detector.

–10 °C +50 °C

–20 °C +70 °C

Preparation

INSERTING/REPLACING THE BATTERY

Use only alkali-manganese or rechargeable batteries.

To open the battery lid in the direction of the arrow and fold up the battery lid. Insert the supplied battery. Pay attention that the polarity is correct, according to the + and - symbols on the inside of the battery lid.

• When the battery indication

lights up, measuring is possible for approx. 1 h when using alkali-manganese batteries (service life is shorter with rechargeable batteries).

10, press the latch 12

k in the display

• When the battery indication measuring is still possible for approx. 10 minutes.

• When the battery indication k and the illuminated ring measuring is no longer possible and the battery or the rechargeable battery respectively, must be replaced.

•

If the multi-detector is not used for a long period of time, the battery must be removed.

discharge itself over long periods.

1 (red) are flashing,

The battery can corrode or

k flashes,

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Operating Instructions

Before switching the multi-detector on, make sure that the sensor area 9 is not moist.

required, wipe the multi-detector dry using a cloth.

The multi-detector detects objects that are below the sensor area

If the multi-detector was subject to an extreme temperature change, allow it to adjust to the ambient temperature before switching on.

To switch the multi-detector on, press any button.

• When switching the multi-detector on with

the wood detection mode button metal-detection mode button automatically be in the respective detection mode. After a brief self-check, the multidetector is ready for operation.

• When switching the multi-detector on with the “on/off” button button 4, it will be in the detection mode last used. After a brief self-check, the multidetector is ready for operation.

• When the multi-detector is in the metaldetection mode, the service readiness is indicated through a check mark behind the “AutoCal” calibration indicator g.

• Avoid wearing jewelry such as rings or watches when using the detector. The metal may cause inaccurate detection.

• Move the multi-detector uniformly the surface without lifting it off or changing the applied pressure.

• During the scan, all three of felt pads always have contact with the surface.

• Make sure that your fingers of the hand holding the multi-detector do not touch the surface being scanned, which could interfere with the tool’s ability to effectively detect items below the surface.

• Do not touch the surface being scanned with your other hand or any other part of part of your body, because the moisture may affect the scanning.

• Always measure SLOWLY to achieve maximum sensitivity.

SWITCHING ON

5 or with the

6, it will

7 or with the “ZOOM”

RECOMMENDATIONS FOR

PROPER SCANNING

8 must

Detected objects can be marked as required.

For this, remove the pencil detector and carry out the scan as usual. Once you have found the limits or the center of an object, simply mark the sought after location through the marking opening good idea to establish a consistent practice of making one type of mark over places in which you such as O, and a different symbol over places in which you do want to penetrate, such as an X.

To switch the multi-detector off, press the “on/off” button

• If none of the multi-detector buttons are pressed for approx. 5 minutes, the multidetector switches off automatically in order to extend the service life of the battery.

SWITCHING OFF THE SIGNAL TONE

The signal tone can be switched on and off. For this, press the metal-detection mode button 5 at the same time. When the signal tone is switched off, the switched-off audio signal indicator j appears on the display. The signal tone setting is maintained after switching the multi-detector off and on again.

MARKING OBJECTS

11 from the multi-

do not want to penetrate (drill, nail, cut),

SWITCHING OFF

6 and the wood-detection mode button

2. It is a

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Scanning in Metal-Detection Mode

PRELIMINARY METAL SCAN

When scanning for metal objects, press the metal detection mode button detection mode indicator display and the illuminated ring

Position the multi-detector then move it uniformly across the surface.

• When the multi-detector comes close to a metal object, then the amplitude increases, as represented by the number of bars shown in the main measuring indicator

• When it moves away from the object, the amplitude and number of bars shown decreases.

At the position of maximum amplitude, the metal object is located below the center of the sensor (below the marking opening

As long as the multi-detector is above the metal object, the illuminated ring red and a steady tone sounds.

• The ability to detect nails, screws, rebar and other metal objects is somewhat dependent on their orientation. For example, at any given depth it is easier for the unit to detect the length of a screw or nail than it is to detect the end of a screw or nail.

• The entire width (3-1/8” / 8 cm) of the detector can detect metal near the surface of scanned items, so the unit is wide enough to scan for metal near the surface of a 3” wide board prior to sanding or planing.

• When a metal item is much narrower than the SENSOR area, the maximum signal might be displayed when the item is just under the left and right of the center hole, rather than the center of the hole, especially if the item is near the surface.

• Always measure SLOWLY to achieve maximum accuracy and sensitivity

• Use the ZOOM feature to maximize sensitivity, especially important when searching for deep items prior to drilling, sawing, nailing and/or routing.

2).

Notes:

6. The metal

c is indicated in the

1 lights up green.

1 lights up

ZOOM METAL SCAN

The ZOOM mode should be used AFTER the Preliminary Metal Scan for the purposes listed below.

• ALWAYS start the ZOOM Metal Scan near the location that the metal object was detected in the Preliminary Metal Scan.

• Press the “ZOOM” button PRESSED while continuing to move the multi-detector over the area. Observe only the ZOOM measuring indicator

Precision Location

be used to more-precisely locate the center of a metal object and for distinguishing between close metal objects. The “ZOOM” measuring indicator e has the greatest amplitude over the center of the metal object.

Detection of Small or Deep Objects - The ZOOM function can also be used when very small or deeply embedded metal objects are being detected but the main measuring indicator

Detection Though Material With Metal inclusions

used if there are any metal inclusions in the material being scanned, such as wire mesh in lath and plaster walls, then a continuous signal is indicated in the main measuring indicator

MAGNETIC VS. NON-MAGNETIC METALS

If the metal object found is a magnetic (e.g. iron or steel), then the indicator for magnetic metals

For non-magnetic metals, the indicator for non-magnetic metals

In order for the multi-detector to differentiate between the metal types, it must be positioned above the detected metal object and the detection must be strong enough that the illuminated ring

For weak signals, the indication of the metal type is not possible. For steel wire mesh and similar reinforcements in the scanned structural material, amplitude of the main measuring indicator complete surface. In this case, always use the “ZOOM” function for the scan. When scanning over steel mesh in concrete, typically (but not always) the indicator for magnetic metals displayed directly above the rebar; the indicator for non-magnetic metals displayed between the rebars.

f does not react.

- The ZOOM function can also be

h is displayed.

- The ZOOM function can

i is displayed.

1 lights up red.

4 and KEEP IT

f is displayed over the

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h is

i is

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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 wooddetection 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

1 go out.

ring

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 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 metaldetection 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

WALL

STUD

PIPE

MULTI-DETECTOR

AT PROBLEM

LOCATIONS FOR

STARTING

“WOOD” SCAN

STUD

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STUD

MULTI-DETECTOR

AT GOOD

LOCATIONS FOR

STARTING

“WOOD” SCAN

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Detection Through Special Surface Materials

Because of the uneven thickness of the plaster, it is difficult to detect wood studs using the wood detection mode. It will probably be easier to locate the studs by changing to the metal-detection mode to locate the nails that hold the lath to the studs.

Lath and Plaster with Metal Mesh

(See SCANNING IN METAL–DETECTION MODE).

Textured or Acoustic Walls and Ceilings

When scanning a wall or ceiling with an uneven surface, place thin cardboard on the surface to be scanned and scan over the cardboard. In wood-detection mode, calibrate with cardboard in place.

Lath and Plaster

Reinforcement

Scanning for “Live” Wires

The multi-detector can indicate “live” wires/conductors with 50 or 60 Hz of 120V AC or at higher voltages. If other wires/conductors are detected, they are indicated only as metal objects. “The multi-detector automatically scans for “live” wires/conductors in both the metal mode and wood mode.

When a “live” wire/conductor is detected, the indicator multi-detector over the surface repeatedly in order to locate the “live” wire/conductor more precisely. After moving the multi-detector over the surface several times, the “live” wire/conductor can be located quite precisely. If the multi-detector is very close to the wire/conductor (four or five bars in indicator a), the illuminated ring signal tone sounds with a rapid tone sequence.

• “Live” wires/conductors can be detected

• Wires/conductors with 110 V, 240 V and

a appears in the display. Move the

1 flashes red and the

more-easily when power consumers (e.g., lamps, appliances) are connected to the wire/conductor being sought and switched on.

380 V (three-phase current) are detected with about the same scan capacity.

If paper contains metallic foil, metallic fibers, see SCANNING IN METAL-DETECTION MODE. If paper is wet, it must be allowed to dry before scanning.

Wood Flooring, Wood Subflooring and

Drywall Over Plywood Sheathing

Because of the thickness of these materials, it is difficult to detect wood joists or studs using the wood-detection mode. It will probably be easier to locate these items by changing to the metal-detection mode to locate the nails that hold the materials to the joists or studs.

The DMD4 cannot detect wood studs and joists through carpeting. It might be possible to use the metal-detection mode to locate nails or screws that were used to attach the wood floor to the joist.

• Under certain conditions (such as when behind metal surfaces, shielded in conduit or behind surfaces with high water content), “live” wires/conductors cannot be detected with certainty. These ranges may be recognized in the metal detection mode as metal objects.

• Wires that are not “live” might be detected as metal objects with the metal-detection mode. However, unlike solid copper cables, stranded copper cables are not detectable.

• When “live” wiring is detected over a wide area, the scan for “live” wiring is not reliable because something in the surface material is shielding or distorting the electrical field.

WARNING

drill, router, saw or nail), always shut off the electrical power, gas and water supplies.

items when operational can result in personal injury.

Wallpaper

Carpeting

Before penetrating a surface (such as with a

Cutting, drilling, etc… into these

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Trouble Shooting

Metal Scan Issue Possible Reason Remedy

Image of metal object • DMD4's metal detection • Use ZOOM feature to more appears wider than actual is very sensitive. precisely determine location size. and center of metal object(s).

Difficulty detecting metal. • Metal objects are too • Use ZOOM feature

Seemingly false metal • Jewelry or mechanical • Remove jewelry detection. pencil are too close to

Wood Scan Issue Possible Reason Remedy

Difficult detecting wood • Studs and joists are • Change to metal scan to search studs and joists. too deep. for nails or screws that may

Difficult to successfully • Double and triple studs • Start scan farther away so starting scan near doors are usually found around that outer edge of multiple and/or windows. doors and windows. studs and /or headers are

More items than anticipated • Wood scan detects • Conduct metal scan as well are detected. metal and other dense to help determine which

deep. (See Maximun Scanning Depth, page 4.)

SENSOR area.

objects as well as studs detected items are metal, and joists. rather than something else,

• Scan in vertical direction as well as horizontal direction.

• Use non-mechanical pencil

• Recalibrate detector.

indicate location of the stud or joist.

detected.

such as wood studs or plastic pipes.

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Detection of Electrical Wiring

Issue Possible Reason Remedy

Area of voltage appears much larger than actual electrical wire.

• Static charge may be present on drywall, spreading voltage as much as 12 inches (305 mm) on either side of an actual electrical wire.

• It may help to put the other hand on the wall and measure again.

• Turn unit off then back on again at edge of where voltage was first detected and scan once more.

• Shut off the appropriate building circuit and restart scan. If searching for electrical wiring, use metal mode to search for metal objects that might be wiring.

Electrical wiring is not detected in area where it is thought to be.

• Wires may not be live (hot)

• Wires may be inside of metal wall covering.

• Wires may be too deep. (See Maximum Scanning Depth, page 4.)

Maintenance and Service

RECALIBRATION

If the main measuring indicator f continuously shows an amplitude even though there is no metal object in the vicinity of the multidetector, the multi-detector can be calibrated manually:

1. Remove all objects in the vicinity of the multi-detector (including wrist watches or rings of metal) and hold the multi-detector up in the air.

2. With the multi-detector switched off, press both the “on/off” button 7 and the wooddetection mode button illuminated ring the same time. Then release both buttons.

When the calibration process is successful, the multi-detector will start over after a few seconds and is then ready for operation.

MAINTENANCE AND CLEANING

• Protect multi-detector against moisture and

direct sunlight.

• Wipe away debris or contamination with a

dry, soft cloth. Do not use cleaning agents or solvents.

1 lights up red and green at

5 until the

• Make sure that circuit has power; make sure that power switches are turned on.

• Try plugging in a lamp into outlet and turning on switch to increase current and chance of detection.

• Use metal scan to check for detection of metal.

• In order not to affect the measuring ability of the multi-detector, decals/stickers or name plates, especially metal ones, may not be attached in the sensor area back side of the multi-detector.

• Do not remove the felt pads side of the multi-detector. Replace the felt pads when they are damaged or used. For this, completely remove the felt pads and glue the new felt pads onto the same spots.

• Store and transport the multi-detector only in the supplied protective case.

• In all correspondence and spare parts orders, please always include the 10-digit article number given on the type plate of the multi-detector.

“AutoCal” CALIBRATION INDICATOR

When the check mark behind the “AutoCal” calibration indicator g flashes over a longer period or if it is not displayed anymore (other than when the pressed down in the wood-detection mode), reliable scanning is no longer possible.

“ZOOM” button 4 has been

9 on the front or

8 on the back

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