BOSCH D-tect 120 Professional Wall Scanner Instruction Manual

June 13, 2024
Bosch

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BOSCH D-tect 120 Professional Wall Scanner

BOSCH-D-tect-120-Professional-Wall-Scanner-FIG-1

Product Information

  • Product Name: D-tect 120 Professional
  • Manufacturer: Robert Bosch Power Tools GmbH
  • Country: Germany
  • Website: www.bosch-pt.com
  • Model Number: 1 609 92A 7KZ
  • Date: 25.04.2022

Product Usage Instructions

Safety Instructions
Only allow qualified professionals to repair the measuring tool using original spare parts to ensure the safety of the tool.

Product and PerformanceDescription:

  • This measuring tool is suitable for indoor use.
  • Refer to the illustrations in the front section of the user manual.

Components:
The numbering of the components corresponds to the representation of the measuring tool on the graphic page.

Technical Specifications:

  • Model: D-tect 120
  • Weight: 0.50-0.61 kg (including battery)
  • Suitable Ambient Temperature during Operation: 5°C to 40°C
  • Suitable Ambient Temperature during Storage: -20°C to 70°C
  • Recommended Batteries: GBA 10.8V, GBA 12V
  • Recommended Chargers: GAL 12, GAX 18

Operation:

  • Power Supply: Battery or Batteries
  • Battery Operation (see Image B): Insert the battery into the tool.
  • Battery Operation (see Image C): Insert batteries into the battery adapter.

Startup:

  • Power On/Off: Before turning on the measuring tool, ensure that the sensor area (14) is not moist. Dry the tool if necessary.
  • If the measuring tool has been exposed to a significant temperature change, let it adjust to the temperature before turning it on.
  • There may be loose parts inside the measuring tool.

Operating Modes:
Moving the tool in any direction B.

Measurement Process:

  • For small or deeply embedded objects, the signal light (12) may glow yellow and there may be no sound signal.
  • Broader objects in the subsurface are recognizable by a continuous high deflection of the measurement display (e). The signal light (12) will glow red.

Determining Object Center:

  • To precisely locate the center of an object, move the measuring tool towards the indicated orientation arrow (d).
  • Pay attention to all signals from the measuring tool (signal light, measurement display, and orientation arrows for determining the object center).

Marking Objects:
Once you have found the boundaries or center of an object, mark the desired location using the upper marking aid (1) and the side marking aids (2). Connect the points with a vertical and a horizontal line. The intersection of the lines indicates the boundary or center of the object.

Safety Instructions

All instructions must be read and observed. The safeguards integrated into the measur-ing tool may be compromised if the measur-ing tool is not used in accordance with these instructions. STORE THESE INSTRUCTIONS IN A SAFE PLACE.

  • Have the measuring tool serviced only by a qualified specialist using only original replacement parts. This will ensure that the safety of the measuring tool is main-tained.

  • Do not use the measuring tool in explosive atmo-spheres which contain flammable liquids, gases or dust. Sparks may be produced inside the measuring tool, which can ignite dust or fumes.

  • Do not open the battery. There is a risk of short-circuit-ing.

  • In case of damage and improper use of the battery, va-pours may be emitted. The battery can set alight or ex-plode. Ensure the area is well ventilated and seek medical attention should you experience any adverse effects. The vapours may irritate the respiratory system.

  • If used incorrectly or if the battery is damaged, flam-mable liquid may be ejected from the battery. Contact with this liquid should be avoided. If contact accident-ally occurs, rinse off with water. If the liquid comes into contact with your eyes, seek additional medical attention. Liquid ejected from the battery may cause ir-ritation or burns.

  • The battery can be damaged by pointed objects such as nails or screwdrivers or by force applied externally. An internal short circuit may occur, causing the battery to burn, smoke, explode or overheat.

  • When the battery is not in use, keep it away from pa-per clips, coins, keys, nails, screws or other small metal objects that could make a connection from one terminal to another. A short circuit between the battery terminals may cause burns or a fire.

  • Only use the battery with products from the manufac-turer. This is the only way in which you can protect the battery against dangerous overload.

  • Only charge the batteries using chargers recommen-ded by the manufacturer. A charger that is suitable for one type of battery may pose a fire risk when used with a different battery.
    Protect the battery against heat, e.g. against continuous intense sunlight, fire, dirt, water and moisture. There is a risk of explosion and short- circuiting.

  • The measuring tool may not be 100 % accurate for technological reasons. To eliminate hazards, familiar-ise yourself with further sources of information, such as building plans and photographs taken during con-struction, etc. before carrying out any drilling, sawing or routing work on walls, ceilings or floors. The accur-acy of the measuring tool may be affected by environ-mental influences, such the level of humidity or there be-ing other electronic devices nearby. The structure and condition of the walls (e.g. damp, building materials con-taining metal, electrically conductive wallpaper, insulat-ing materials, tiles) and the number, type, size and posi-tion of the objects may distort the measuring results.

  • Make sure that you are properly earthed when taking measurements. If you are not properly earthed (e.g. by wearing insulating footwear or by standing on a ladder), it will not be possible to locate live cables.

  • If there are gas pipes in the building, check to ensure that none of them have been damaged after complet-ing any work on walls, ceilings or floors.

  • Live wires can be detected more easily when power con-sumers (e.g. lamps, appliances) are connected to the wire being sought and switched on. Switch off power consumers and make sure that live cables are de-ener-gised before drilling, sawing or milling into walls, ceil-ings or floors. After performing any kind of work, check to ensure that objects placed on the base ma-terial are not live.

  • When attaching objects to dry walls, and in particular when attaching them to the substructure, check to en-sure that both the wall and the fastening materials have a sufficient load-bearing capacity.

Product Description and Specifications

Please observe the illustrations at the beginning of this oper-ating manual.

Intended Use

  • The measuring tool is intended for the detection of objects in walls, ceilings and floors. Depending on the material and condition of the base material, it is possible to detect metal objects, timber joists, water-filled plastic pipes, conductors and cables.
  • The measuring tool complies with the limits of the standards specified in the declaration of conformity.
  • On this basis, clarification is required as to whether the measuring tool can be used in places such as hospitals, nuclear power plants and in the vicinity of airports and mobile phone base stations.
  • The measuring tool is suitable for indoor use.

Product features
The numbering of the product features shown refers to the il-lustration of the measuring tool on the graphic page.

BOSCH-D-tect-120-Professional-Wall-Scanner-FIG-2

  1. Top marking aid
  2. Left-hand and right-hand marking aids
  3. Concrete operating mode button
  4. Audio signal button
  5. Gripping surface
  6. Rechargeable battery/battery adapter release buttona)
  7. Battery packa)
  8. On/off button
  9. Universal operating mode button
  10. Drywall operating mode button
  11. Display
  12. Indicator light
  13. Serial number
  14. Sensor area
  15. Battery adapter capa)
  16. Battery adapter receptaclea)
  17. Battery bay
  18. Non-rechargeable batteriesa)
    Accessories shown or described are not included with the product as standard. You can find the complete selection of accessories in our accessories range.

Display elements (see figure A)

BOSCH-D-tect-120-Professional-Wall-Scanner-FIG-3

  • (a) Indicator for live wires
  • (b) Procedure indicator
  • (c) Object centre indicator (centre cross)
  • (d) Orientation arrows to determine the object’s centre
  • (e) Measuring indicator
  • (f) Service indicator
  • (g) Battery pack temperature monitoring indicator
  • (h) Interference from radio waves indicator
  • (i) Audio signal indicator
  • (j) State of charge of rechargeable batteries/non-rechargeable batteries

Technical data

  • Article number 3 601 K81 3..

  • Max. detection depthA)

    • Concrete operating mode 120 mm
    • Concrete operating mode: Metal objects 120 mm
    • Concrete operating mode: Cables and water-filled plastic pipes 60 mm
    • Universal operating mode 60 mm
    • Drywall operating mode 60 mm
    • Drywall operating mode : Wooden beams 38 mm
  • Accuracy of object centre measurementA) ±10 mm

  • Minimum distance between two neighbouring objectsA) 50 mm

  • Operating frequency range 2400–2483.5 MHz

  • Max. transmission power 0.1 mW

  • Max. altitude 2000 m

  • Relative air humidity max.

    • For detecting objects 90 % (non-condensing)
    • For classifying power cables 50 %
  • Pollution degree according to IEC 61010-1 2 B)

  • Measuring tool power supply

    • Rechargeable battery (Li-ion) 10.8 V, 12 V
    • Non-rechargeable batteries (alkaline manganese) 4 × 1.5 V LR6 (AA) (with battery adapter)
  • Approx. operating time

    • Rechargeable battery (Li-ion) 5 h
    • Non-rechargeable batteries (alkaline manganese) 5 h
  • Weight according to EPTA-Procedure 01:2014

    • With rechargeable battery 0.50−0.61 kgC)
    • With non-rechargeable batteries 0.46 kg
  • Recommended ambient temperature during charging 0 °C to +35 °C

  • Permitted ambient temperature during operation –10 °C to +40 °C

  • Permitted ambient temperature during storage –20 °C to +70 °C

  • Recommended rechargeable batteries

    • GBA 10,8V…
    • GBA 12V…
  • Recommended chargers

    • GAL 12…
    • GAX 18…
  • Depends on operating mode, material and size of the objects, as well as material and condition of the base material

  • Only non-conductive deposits occur, whereby occasional temporary conductivity caused by condensation is expected.

  • Depends on battery in use
    The serial number (13) on the type plate is used to clearly identify your measuring tool.

  • The accuracy and detection depth of the measuring result may be negatively affected if the condition of the substrate is unfavorable.

Operation

  • Protect the measuring tool from moisture and direct sunlight.
  • Do not expose the measuring tool to any extreme tem-peratures or variations in temperature. In case of large variations in temperature, leave the measuring tool to adjust to the ambient temperature before switching it on. The accuracy of the measuring tool and the functionality of the display may be compromised if ex-posed to extreme temperatures or variations in temperat-ure.
  • Avoid hard knocks to the measuring tool or dropping it. After severe external influences and in the event of ab-normalities in the functionality, you should have the measuring tool checked by an authorised Bosch after-sales service agent.
  • Certain ambient conditions fundamentally impair the measuring results. These include, e.g. the proximity of devices that generate strong electric, magnetic or electromagnetic fields, moisture, metal building ma-terials, foil-laminated insulation materials or conduct-ive wallpaper or tiles. Therefore, also refer to other in-formation sources (e.g. construction plans) before drilling, sawing or routing into walls, ceilings or floors.
  • Hold the measuring tool by the intended gripping sur-face (5) only, so as not to influence the measurement.
  • Do not attach any stickers or labels to the sensor area (14) on the rear of the measuring tool. Metal la-bels in particular will affect measuring results.
    • Do not wear gloves when taking measure-ments and make sure that you are properly earthed. If you are not properly earthed, the material identification of “live” wires may be im-paired.
    • When taking measurements, avoid devices that emit strong electric, magnetic or elec-tromagnetic fields. If possible, deactivate all tools whose radiation could interfere with the measurement and switch off the corresponding functions or tools.

Measuring Tool Power Supply
The measuring tool can be operated either with conventional non-rechargeable batteries or with a Bosch lithium-ion bat-tery.

  • Operation with rechargeable battery pack (see figure B)
    Use only the chargers listed in the technical data. Only these chargers are matched to the lithium-ion battery of your measuring tool.

BOSCH-D-tect-120-Professional-Wall-Scanner-FIG-4

  *  **Note:** The use of batteries unsuitable for your measuring tool can lead to malfunctions or damage to the measuring tool. Note: The battery is supplied partially charged. To ensure full battery capacity, fully charge the battery in the charger before using your tool for the first time.
  * The lithium-ion battery can be charged at any time without reducing its service life. Interrupting the charging process does not damage the battery.
  * The lithium-ion battery is protected against deep discharge by the “Electronic Cell Protection (ECP)”. A protective circuit switches the measuring tool off when the battery is drained. To insert the charged battery pack (7), slide it into the bat-tery bay (17) until you feel it engage.
  * To remove the battery pack (7), press the release buttons (6) and pull the battery pack out of the battery bay (17). Do not use force to do this.
  • Operation with non-rechargeable batteries (see figure C)
    • It is recommended that you use alkaline manganese batter-ies to operate the measuring tool.
    • The batteries are inserted into the battery adapter.
    • The battery adapter is intended only for use in desig-nated Bosch measuring tools and must not be used with power tools.
    • To remove the batteries (18), press the re-lease buttons (6) of the cap (15) and pull off the cap. Make sure that the batteries do not fall out by holding the measuring tool with the bat-tery bay (17) facing upwards. Remove the bat-teries. To remove the receptacle (16) from in-side the battery bay, reach into the receptacle and pull it out of the measuring tool, applying light pressure to the side wall as you do so.
    • Always replace all the batteries at the same time. Only use batteries from the same manufacturer and which have the same capacity.
    • Take the batteries out of the measuring tool when you are not using it for a prolonged period of time. The bat-teries can corrode and self-discharge during prolonged storage in the measuring tool.

BOSCH-D-tect-120-Professional-Wall-Scanner-FIG-5

Starting Operation
  • Switching on/off
    • Before switching on the measuring tool, ensure that the sensor area (14) is dry. If necessary, use a cloth to dry the measuring tool.
    • If the measuring tool has been exposed to a significant change in temperature, leave it to adjust to the ambient temperature before switching it on.
    • To switch on the measuring tool, press the on/off button (8).
    • To switch off the measuring tool, press the on/off button (8) again.
    • If no button on the measuring tool is pressed for approx.
    • 5 minutes, the measuring tool will automatically switch itself off to preserve battery life.
    • Check the measuring tool before each use. Safe operation cannot be guaranteed in the following circumstances:
    • The measuring tool has visible damage or there are loose components inside the measuring tool.
    • The measuring indicator (e) constantly deflects, even when holding the measuring tool in the air.
    • The measuring indicator (e) does not deflect at all, even when holding a finger in the sensor area.
    • None of the operating mode buttons light up.
  • Switching audio signal on/off
    The audio signal can be switched on/off with the audio signal button (4). When the audio signal is switched off, the audio signal indicator (i) appears on the display.
Operating Modes
  • Once it has been switched on, the measuring tool defaults to the universal operating mode.

  • To change the operating mode, press the button for the required operating mode (button for universal operating mode (9), button for concrete operating mode (3) or button for drywall operating mode (10)). The selected operating mode is indicated by the illuminated button.

  • By selecting the operating mode, you can adjust the measuring tool to different wall materials and, if required, prevent the detection of unwanted objects.

  • If the wall material is not known, you should begin with the universal operating mode.

  • Universal operating mode
    The universal operating mode is suitable for most applications in masonry. Metal objects, water-filled plastic pipes, electrical lines and cables can be detected. Hollow spaces in brick-work or empty plastic pipes with a diameter of less than 2 cm remain potentially undetectable. The max-imum measuring depth is 6 cm.

  • Concrete operating mode
    The concrete operating mode is particularly suitable for applications in reinforced con-crete. Rebar, metal pipes, water-filled plastic pipes, electrical lines and cables can be detec-ted. The maximum measuring depth is 12 cm.

  • Drywall operating mode
    The drywall operating mode is suitable for de-tecting timber joists, metal supports, electrical lines and cables in drywalls (wood, plaster-board, etc.). Water-filled plastic pipes can also be detected. Empty plastic pipes normally cannot be detected. The maximum measuring depth is 6 cm.

How it works (see figure D)

  • The measuring tool checks the base material of the sensor area (14) in the measurement direction A up to the max-imum detection depth. Objects that are different from the material of the wall are detected.
  • Always move the measuring tool over the base material ap-plying light pressure, without lifting it off or changing the pressure.
  • The measuring tool can be moved in any direction B.

BOSCH-D-tect-120-Professional-Wall-Scanner-FIG-6

Measuring process

  • Position the measuring tool on/against the surface being in-spected.
  • If there is an object below the measuring tool when it is set down, the indicator light (12) lights up red if there is suffi-cient signal strength, the measuring indicator (e) deflects and an audio signal sounds.
  • If no object is detected when the measuring tool is set down, the proceed indicator (b) is displayed and the indicator light (12) lights up yellow. Move the measuring tool over the surface without lifting it off, until the proceed indicator dis-appears.
  • If no object is detected below the measuring tool, the indic-ator light (12) lights up green.
  • When the measuring tool approaches an object, the deflec-tion in the measuring indicator (e) increases, the indicator light (12) lights up red and an audio signal sounds. When it moves away from the object, the deflection in the measuring indicator decreases.
  • For small or deep-lying objects, the indicator light (12) can light up yellow without the audio signal sounding.
  • Wider objects in the base material can be identified by a con-tinuous high deflection of the measuring indicator (e). The indicator light (12) lights up red.
  • Before drilling, sawing or routing into walls, refer to other sources of information to ensure that you elim-inate hazards. As the measuring results can be influ-enced through ambient conditions or the condition of the wall, there may be a hazard even though the measuring indicator (e) does not indicate an object in the sensor range and the indicator light (12) lights up green.

Determining an object’s centre

  • If an object is detected, the signal light (12) will light up red. With sufficient signal strength, the orientation arrows (d) are displayed to determine the object’s centre.
  • To locate the object’s centre, move the measuring tool in the direction of the orientation arrow (d) displayed.
  • Over the centre of an object, the measuring indicator (e) will exhibit maximum deflection, and with sufficient signal strength, the centre cross (c) will appear. The orientation arrow (d) will also disappear.
  • For a more accurate location of the object’s centre, pay at-tention to the square; if there is sufficient signal strength, this will be shown in the immediate vicinity of the object’s centre in addition to the centre cross (c).
  • If the orientation arrows (d) are not displayed, an object may nevertheless be located in the immediate vicinity.
    Always check all the signals of the measuring tool (in-dicator light, measuring indicator and orientation ar-rows for locating the object’s centre).

Indicator for live wires
The scan for live wires takes place automatically for each measurement (regardless of the operating mode). When a live wire is detected, the indicator for live wires (a) appears in the display, the indicator light (12) flashes red and the audio signal sounds at a faster rate.

Notes:

  • In certain conditions (such as behind metal surfaces or behind surfaces with high water content), live wires cannot always be detected. The signal strength of a live wire depends on the position of the cable. There-fore, take further measurements in close proximity or use other information sources to check if a live wire is present.
  • Static electricity can cause wires to be detected inaccur-ately (e.g. over a large area) or prevent them from being detected at all. To improve the detection, place your free hand flat on the wall next to the measuring tool, in order to remove the static electricity.
  • Live wires can be detected more easily when power con-sumers (e.g. lamps, appliances) are connected to the wire being sought and switched on. Switch off electricity consumers before drilling, sawing or milling into the wall.

Marking objects
If required, detected objects can be marked. Perform a measurement as usual.
Once you have found the boundaries or the centre of an ob-ject, mark the sought location at the top marking aid (1) and the side marking aid (2). Connect the points with a vertical and horizontal line. The boundary or the centre of the object is located where the lines intersect.

Errors – causes and corrective measures

BOSCH-D-tect-120-Professional-Wall-Scanner-FIG-11

Maintenance and Service

Maintenance and Cleaning

  • Check the measuring tool before each use. If the meas-uring tool is visibly damaged or parts have become loose inside the measuring tool, safe function can no longer be ensured.
  • Always keep the measuring tool clean and dry to ensure op-timum, safe operation.
  • Never immerse the measuring tool in water or other liquids.
  • Wipe off any dirt using a dry, soft cloth. Do not use any de-tergents or solvents.

After-Sales Service and Application Service

  • Our after-sales service responds to your questions concern-ing maintenance and repair of your product as well as spare parts. You can find explosion drawings and information on spare parts at: www.bosch-pt.com
  • The Bosch product use advice team will be happy to help you with any questions about our products and their accessor-ies.
  • In all correspondence and spare parts orders, please always include the 10‑digit article number given on the nameplate of the product.
  • Malaysia
    • Robert Bosch Sdn. Bhd.(220975-V) PT/SMY
    • No. 8A, Jalan 13/6
    • 46200 Petaling Jaya
    • Selangor
    • Tel.: (03) 79663194
    • Toll-Free: 1800 880188
    • Fax: (03) 79583838
    • E-Mail: [email protected]
    • www.bosch-pt.com.my
  • Great Britain
    • Robert Bosch Ltd. (B.S.C.)
    • P.O. Box 98
    • Broadwater Park
    • North Orbital Road
    • Denham Uxbridge
    • UB 9 5HJ
    • At www.bosch-pt.co.uk you can order spare parts or arrange the collection of a product in need of servicing or repair. Tel. Service: (0344) 7360109
    • E-Mail: [email protected]
    • You can find further service addresses at: www.bosch-pt.com/serviceaddresses

Transport

  • The recommended lithium-ion batteries are subject to legis-lation on the transport of dangerous goods. The user can transport the batteries by road without further require-ments.
  • When shipping by third parties (e.g.: by air transport or for-warding agency), special requirements on packaging and la-belling must be observed. For preparation of the item being shipped, consulting an expert for hazardous material is re-quired.
  • Dispatch battery packs only when the housing is undam-aged. Tape or mask off open contacts and pack up the bat-tery in such a manner that it cannot move around in the packaging. Please also observe the possibility of more de-tailed national regulations.

Disposal

  • Measuring tools, rechargeable/non-re-chargeable batteries, accessories and pack-aging should be sorted for environmental-friendly recycling.
  • Do not dispose of the measuring tools or bat-tery packs/batteries with household waste.

Only for EU countries:

  • According to the Directive 2012/19/EU on waste electrical and electronic equipment and its transposition into national law, measuring tools that are no longer usable, and, accord-ing to the Directive 2006/66/EC, defective or drained bat-teries must be collected separately and disposed of in an en-vironmentally correct manner.
  • If disposed incorrectly, waste electrical and electronic equipment may have harmful effects on the environment and human health, due to the potential presence of hazardous substances.

Only for United Kingdom:
According to Waste Electrical and Electronic Equipment Reg-ulations 2013 (2013/3113) and the Waste Batteries and Accumulators Regulations 2009 (2009/890), measuring tools that are no longer usable must be collected separately and disposed of in an environmentally friendly manner.

Battery packs/batteries:
Li-ion:
Please observe the notes in the section on transport (see “Transport”, page 17).

Hereby, Robert Bosch Power Tools GmbH declares that the radio equipment type D‑tect 120 is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address: http://eu-doc.bosch.com/

Declaration of Conformity

Hereby, Robert Bosch Limited as authorised representative acting on behalf of Robert Bosch Power Tools GmbH declares that the radio equipment type D‑tect 120 is in compliance with the Radio Equipment Regulations 2017. The full text of the declaration of conformity is available at the following internet address: https://gb-doc.bosch.com

References

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