BOSCH 1 609 92A 8B4 Truvo Wall Scanner Instruction Manual

: July 9, 2024
: Bosch

Table of Contents

BOSCH 1 609 92A 8B4 Truvo Wall Scanner
Product Usage Instructions
Safety Instructions
Product Description and Specifications
Product features
Technical data
Assembly
Operation
Overview of indications
Working Advice
Maintenance and Service
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

BOSCH 1 609 92A 8B4 Truvo Wall Scanner

BOSCH-1-609-92A-8B4-Truvo-Wall-Scanner-product-image

Specifications

Brand: Bosch Power Tools GmbH
Model: Truvo
Operating Voltage: 110-240 V, 50-60 Hz
Frequency Range: 2000 m
Operating Temperature: 30-80%
Battery Life: >3 hours
Weight: 0.15 kg

Product Usage Instructions

Installation
To install or replace batteries, follow the instructions provided in the manual.

Operation
Before turning on the device, ensure that the sensor area is dry. If exposed to extreme temperature changes, allow the device to adjust before turning it on.
To turn on the device, slide the power switch downwards. To turn it off, slide the switch upwards. The device will automatically turn off after about 10 minutes of inactivity to preserve battery life.

Functionality
The device emits different signals based on the presence of objects in the sensor area. A yellow signal indicates no object detected, while a red signal indicates a metal object detected.

Troubleshooting
If the device provides inaccurate readings or the calibration is unsuccessful, manually calibrate the device. If the LED ring does not light up, try turning the device off and on again. If the batteries are low, replace them.
If the device is defective, contact an authorized Bosch service center for assistance.

FAQ

Q: How do I know if the device needs calibration?
- A: If you notice inaccurate or implausible readings, it may be necessary to calibrate the device manually.
Q: How long does the battery last?
- A: The battery life of the Truvo is approximately more than 3 hours under normal usage conditions.

Safety Instructions

All instructions must be read and observed. The safeguards integrated into the measuring tool may be compromised if the measuring 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 maintained.
Do not use the measuring tool in explosive atmospheres which contain flammable liquids, gases or dust. Sparks may be produced inside the measuring tool, which can ignite dust or fumes.
The measuring tool may not be 100 % accurate for technological reasons. To eliminate hazards, familiarise yourself with further sources of information, such as building plans and photographs taken during construction, etc. before carrying out any drilling, sawing or routing work on walls, ceilings or floors. Environmental influences, such as humidity, or proximity to devices that generate strong electric, magnetic or electromagnetic fields, moisture, metallic building materials, foillaminated insulation materials or conductive wallpaper or tiles may impair the accuracy of the measuring tool. The number, type, size and position of the objects may distort the measuring results.
If there are gas pipes in the building, check to ensure that none of them have been damaged after completing any work on walls, ceilings or floors.

Product Description and Specifications

Please observe the illustrations at the beginning of this operating manual.

Intended Use
The measuring tool is intended for the detection of metal (ferrous and non- ferrous metals, e.g. reinforcing steel) and live wires in walls, ceilings and floors.
The measuring tool is suitable for indoor use.

Product features

The numbering of the product features shown refers to the illustration of the measuring tool on the graphic page.

Gripping surface
On/off switch
Live wire indicator
Metal object indicator
Light-up ring
Left-hand and right-hand marking aids
Top marking aid
Sensor area
Serial number
Battery compartment cover
Locking mechanism of the battery compartment cover

Technical data

Depends on material and size of the objects, as well as material and condition of the substrate
Lower detection depth with non-live wires
Only non-conductive deposits occur, whereby occasional temporary conductivity caused by condensation is expected.

The serial number (9) 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.

Assembly

Inserting/changing the batteries
It is recommended that you use alkaline manganese batteries to operate the measuring tool.
To open the battery compartment cover (10), press the locking mechanism (11) and lift open the battery compartment cover. Insert the batteries.
When inserting the batteries, ensure that the polarity is correct according to the illustration on the inside of the battery compartment.
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 batteries can corrode and self discharge during prolonged storage in the measuring tool.

Operation

Protect the measuring tool from moisture and direct sunlight.
Do not expose the measuring tool to any extreme temperatures 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 precision of the measuring tool may be compromised if exposed to extreme temperatures or fluctuations in temperature.
Avoid hard knocks to the measuring tool or dropping it. After severe external influences and in the event of abnormalities in the functionality, you should have the measuring tool checked by an authorised Bosch after-sales service agent.
Hold the measuring tool by the intended gripping surface (1) only, so as not to influence the measurement.
Do not attach any stickers or labels to the sensor area (8) on the rear of the measuring tool. Metal labels in particular will affect measuring results.

Do not wear gloves when taking measurements and make sure that you are properly earthed. If you are not properly earthed, the identification of live wires may be impaired.
When taking measurements, avoid getting close to devices that emit strong electric, magnetic or electromagnetic fields, such as mobile telephones, laptops or tablets. If possible, deactivate all tools whose radiation could interfere with the measurement and switch off the corresponding functions or tools.

Starting Operation
Switching on/off

Before switching on the measuring tool, ensure that the sensor area (8) 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, push the on/off switch (2) down.

The measuring tool carries out a short self-check and calibrates itself automatically. Once the light-up ring (5) turns green, the measuring tool is ready to use.

To switch off the measuring tool, push the on/off switch (2) up.

If no measurement takes place for approx. 10 minutes, the measuring tool automatically switches off to save the batteries.
Note: When the measuring tool has switched off automatically, the on/off switch (2) will still be in the “on” position. To switch the measuring tool on again, first switch it off and then switch it on again.

How it Works
The measuring tool checks the substrate of the sensor area (8) up to the maximum detection depth.

Metal objects and live cables are automatically searched for during each measurement.

Always move the measuring tool in a straight line in a lateral direction over the substrate, applying light pressure, without lifting it off or changing the pressure. Hold the measuring tool by the gripping surface (1) with an even grip and do not touch the sensor area (8) while taking measurements.
For the best possible results, make sure that the measuring tool maintains contact with the surface throughout the measuring process.

Overview of indications

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Objects are only displayed roughly the first time you move over them. Move the measuring tool several times over the same surface in order to locate the object precisely.
The detection depth of the measurement depends on material and size of the objects, as well as material and condition of the substrate and may be less than the maximum detection depth.

Searching for Metal Objects
Preparing to take measurements and features of the measuring process

Remove any metal objects, such as rings, watches and other jewellery from the vicinity of the measuring tool to prevent interference with the measurement results.
The proximity of metal objects such as door frames and radiators can impede the search for other metal objects beneath the surface. This also applies to aluminium foil covering heating pipes or insulation, which is recognised as metal and indicated over large areas.

When approaching a metal object, the light-up ring (5) first lights up yellow and then changes to red. The metal object indicator (4) will light up and an acoustic signal is emitted.

Even when the light-up ring is yellow, there may be a metal object beneath the sensor area. Small or deep-lying metal objects are near the sensor, or the nature of the wall affects the measuring result.

Searching for Live Cables
The measuring tool displays single-phase live cables (110−240 V,
50−60 Hz). Other cables (multi-phase electricity cables, DC, higher/lower frequency or voltage) as well as non-live cables cannot be reliably detected, but they may be displayed as metal objects.

Preparing to take measurements and features of the measuring process

The cable must be live. You should therefore connect electricity consumers (e.g. lights, appliances) to the electricity cable you are trying to find. Switch on the electricity consumers to ensure that the electricity cable is live.
The 50–60 Hz signal from the electricity cable must be able to reach the measuring tool. If the cable is in damp walls (e.g. due to high humidity), behind metallic foils (e.g. from thermal insulation) or in an empty metal pipe, the signal will not reach the measuring tool and you will not be able to find the cable.
If the light-up ring (5) lights up yellow or red over a larger area, then the material is electrically shielded and the search for live cables is not reliable.
The measuring tool must be sufficiently earthed. To do this, hold it firmly (without gloves) by the gripping surface (1). Make sure that you are in good contact with the floor. Insulating shoes, ladders or platforms may compromise your contact with the floor. The floor must also be earthed in order for live cables to be detected.
The 50–60 Hz signal from the electricity cable must be stronger along the cable than in its immediate vicinity. If the wall is very dry or poorly earthed, the signal will be the same strength throughout the wall. This will result in the meaasuring tool indicating that it has found a signal over a large area, but it will not be able to detect the exact location of the cable. In this instance, it may be helpful to place your free hand on the wall 20−30 cm from the measuring tool in order to conduct the signal away from the wall.

If a live cable is found, the light-up ring (5) lights up red, the live cable indicator (3) lights up white and an audio signal is emitted.

Switch off power consumers and make sure that live cables are deenergized before drilling, sawing or milling into walls, ceilings or floors. After performing any kind of work, check to ensure that objects placed on the substrate are not live.

Working Advice

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 object, mark the sought location at the top marking aid (7) and the side marking aid (6). Connect the points with a vertical and horizontal line. The boundary or the centre of the object is located where the lines intersect.

Recalibration
Manually recalibrate the measuring tool if the light-up ring (5) continues to light up yellow or red even though there is no metal near the measuring tool.

Switch on the measuring tool using the on/off switch (2).
Remove a battery from the measuring tool whilst it is switched on.
Switch off the measuring tool using the on/off switch (2) after the battery has been removed.
Reinsert the battery into the measuring tool. Ensure that the polarity is correct.
Remove all objects near the measuring tool (including watches or metal rings) and hold the measuring tool in the air.
Switch the measuring tool on and off again within 3 s using the on/off switch (2). The light-up ring (5) will flash red slowly for the 3 s to indicate readiness for calibration.
Switch the measuring tool back on within 0.5 s. The calibration will start and take roughly 6 s. During calibration, the light-up ring (5) flashes green quickly. Once the light-up ring (5) lights up green continuously, the calibration is complete and the measuring tool is ready to use.

Note: If the sequence of switching off and switching on again is not observed, calibration will not take place. The light-up ring (5) continues to light up yellow or red even though there is no metal nearby. In this case, repeat the calibration in the exact same way.

Errors – Causes and Corrective Measures

Error when searching for and indicating metal

Maintenance and Service

Maintenance and Cleaning
Check the measuring tool before each use. If the measuring 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 optimum, 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 detergents or solvents.

After-Sales Service and Application Service
Our after-sales service responds to your questions concerning 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 accessories.
In all correspondence and spare parts orders, please always include the 10‑digit article number given on the nameplate of the product.

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 : boschservicecentre@bosch.com
You can find further service addresses at: www.bosch-pt.com/serviceaddresses

Disposal
Measuring tools, accessories and packaging should be recycled in an environmentally friendly manner.

Do not dispose of measuring tools or 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, according to the Directive 2006/66/EC, defective or drained batteries must be collected separately and disposed of in an environmentally 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 The Waste Electrical and Electronic Equipment Regulations 2013 (SI 2013/3113) (as amended) and the Waste Batteries and Accumulators Regulations 2009 (SI 2009/890) (as amended), products that are no longer usable must be collected separately and disposed of in an environmentally friendly manner.

Hereby, Robert Bosch Power Tools GmbH declares that the radio equipment type Truvo is in compliance with Directive 2014/53/EU. The full text of the EU declaration of conformity is available at the following internet address

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 Truvo 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