BOSCH PLR 25 Telemeter Instruction Manual

October 30, 2023
Bosch

BOSCH-LOGO

BOSCH PLR 25 Telemeter

BOSCH-PLR-25-Telemeter-LOGO-PRODUCT

Product Information

The product is manufactured by Robert Bosch GmbH Power Tools Division located in 70745 Leinfelden-Echterdingen Germany. The product model number is 2 609 140 620 and the manual was last updated in July 2011.

Product Usage Instructions

  1. Before use, ensure that the product is compatible with the task at hand.
  2. Read the user manual carefully before operating the product.
  3. Ensure that the product is properly assembled and all components are securely attached before use.
  4. Use the product according to the instructions provided in the user manual.
  5. Do not operate the product if it is damaged or malfunctioning.
  6. Always wear appropriate protective gear, such as safety glasses or gloves, when using the product.
  7. Do not use the product for any purpose other than its intended use.
  8. Keep the product out of reach of children and pets.
  9. After use, clean and store the product in a safe and dry location, away from direct sunlight and moisture.

WHAT INBOX

BOSCH-PLR-25-Telemeter-FIG-1

Safety Notes

Working safely with the measuring tool is possible only when the operating and safety information are read completely and the instructions contained therein are strictly followed. Never make warning labels on the measuring tool unrecognizable.
SAVE THESE INSTRUCTIONS.

  • Caution – The use of other operating or adjusting equipment or the application of other processing methods than those mentioned here, can lead to dangerous radiation exposure.
  • The measuring tool is delivered with a warning label in German language (marked with the number 13 in the representation of the measuring tool on the graphic page).
  • Before putting it into operation for the first time, attach the supplied sticker in your national language over the German text on the warning label.
  • Do not direct the laser beam at persons or animals and do not stare into the laser beam yourself. This measuring tool produces laser class 2 laser radiation according to IEC 60825-1. This can lead to people being blinded.
  • Do not use the laser viewing glasses as safety goggles. The laser viewing glasses are used for improved visualization of the laser beam, but they do not protect against laser radiation.
  • Do not use the laser viewing glasses as sunglasses or in traffic. The laser viewing glasses do not afford complete UV protection and reduce color perception.
  • Has the measuring tool been repaired only through qualified specialists using original spare parts? This ensures that the safety of the measuring tool is maintained.
  • Do not allow children to use the laser measuring tool without supervision. They could unintentionally blind other persons or themselves.
  • Do not operate the measuring tool in explosive environments, such as in the presence of flammable liquids, gases or specks of dust. Sparks can be created in the measuring tool which may ignite the dust or fumes.

Product Description and Specifications

Intended Use
The measuring tool is intended for measuring distances, lengths, heights, and clearances, and for the calculation of areas and volumes. The measuring tool is suitable for measuring indoors and outdoors.

Product Features

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

  1. On/Off and memory delete button
  2. Button for selection of the reference level
  3. Memory subtraction button “M–”
  4. Memory add button “M+”
  5. 5 Area measurement button
  6. Length measurement button
  7. Display
  8. Alignment aid
  9. Measuring button
  10. Volume measurement button
  11. Memory retrieve button “M=”
  12. Tracking (continuous measurement) button
  13. Laser warning label
  14. Latch of battery lid
  15. Battery lid
  16. Laser beam outlet
  17. Reception lens
  18. Serial number
  19. Laser viewing glasses*
  20. Laser target plate*
  21. Protective pouch

The accessories illustrated or described are not included as standard delivery.

Display Elements

  • a Measuring functions

  • Length measurement

  • Tracking (continuous measurement)

  • Area measurement

  • Volume measurement

  • b Battery low indicator

  • c Temperature warning

  • d Measured value/result

  • e Unit of measure

  • f Measurement reference level

  • g Laser switched on

  • h Individual measured value (for length measurement: result)

  • i Measured values stored BOSCH-PLR-25-Telemeter-FIG-5

Technical Data

Article number 3 603 K16 200
Measuring range 0.05–25 mA)
Measuring accuracy (typically) ±2.0 mmB)
Lowest indication unit 1 mm
Operating temperature – 10 °C … +50 °CC)
Storage temperature – 20 °C … +70 °C
Relative air humidity, max. 90 %
Laser class 2
Laser type 635 nm, <1 mW
Laser beam diameter (at 25 °C) and at 10 m dis- tance, approx.

6 mm

Batteries Rechargeable batteries| 4 x 1.5 V LR03 (AAA)

4 x 1.2 V KR03 (AAA)

Battery live, approximately

–  Individual measurements

–  Continuous measurement

|

30000D)

5hD)

Weight according to EPTA-Procedure 01/2003 0.18 kg
Dimensions 58 x 104 x 36 mm
Degree of protection (excluding battery compartment)

IP 44 (splash water protected)

  • A) The working range increases depending on how well the laser light is reflected from the surface of the target (scattered, not reflective) and with the increased brightness of the laser point to the ambient light intensity (interior spaces, twilight). In unfavorable conditions (e.g. when measuring outdoors in intense sunlight), it may be necessary to use the target plate.
    B) In unfavorable conditions (e.g. at intense sunlight or an insufficiently reflecting surface), the maximum deviation is ±7mm per 25 m. In favorable conditions, a deviation influence of ±0.05 mm/m must be taken into account.
    C) In the continuous measurement function, the maximum operating temperature is +40 °C.
    D) Fewer measurements are possible when using 1.2 V rechargeable batteries than with 1.5 V batteries. Please observe the article number on the type plate of your measuring tool. The trade names of the individual measuring tools may vary. The measuring tool can be clearly identified with serial number 18 on the type plate.

Assembly

Inserting/Replacing the Battery
Using alkali-manganese or rechargeable batteries is recommended for the operation of the measuring tool. Less measurements are possible when using 1.2 V rechargeable batteries than with 1.5 V batteries. To open the battery lid 15, press the latch 14 in the direction of the arrow and remove the battery lid. Insert the batteries/rechargeable batteries. When inserting, pay attention to the correct polarity according to the representation on the inside of the battery compartment. When the battery symbol appears for the first time on the display, at least 100 measurements are still possible. When the battery symbol flashes, the batteries/ rechargeable batteries must be replaced; measurements are no longer possible. Always replace all batteries/rechargeable batteries at the same time. Do not use different brands or types of batteries/rechargeable batteries together.

  • Remove the batteries/rechargeable batteries from the measuring tool when not using it for longer periods. When stored for longer periods, the batteries/rechargeable batteries can corrode and discharge themselves.

Operation

Initial Operation

  • Do not leave the switched on measuring tool unattended and switch the measuring tool off after use. Other persons could be blinded by the laser beam.
  • Protect the measuring tool against moisture and direct sun light.
  • Do not subject the measuring tool to extreme temperatures or variations in temperature. As an example, do not leave it in vehicles for longer periods. In case of large variations in temperature, allow the measuring tool to adjust to the ambient temperature before putting it into operation. In case of extreme temperatures or variations in temperature, the accuracy of the measuring tool can be impaired.
  • Avoid heavy impact to or falling down of the measuring tool. After severe exterior effects to the measuring tool, it is recommended to carry out an accuracy check (see “Accuracy Check of the Measuring Tool”, page 22) each time before continuing to work.

Switching On and Off
To switch on the measuring tool, briefly press the On/Off button 1 or measuring button 9. When switching on the measuring tool, the laser beam is not switched on yet. To switch off the measuring tool, press the On/Off button 1 for a few seconds. If none of the measuring tool buttons are pressed for approx. 5minutes, the measuring tool switches off automatically in order to extend the service life of the battery. When a measured value has been stored, it is retained in automatic switch-off mode. When switching on the measuring tool again, “M” is indicated in the display.
Measuring Procedure
After switching on, the measuring tool is in the length measurement mode. Other measuring modes can be switched to by pressing the respective function/mode button (see “Measuring Functions”, page 18). After switching on, the rear edge of the measuring tool is preset as the reference level for the measurement. To change the reference level, see “Selecting the Reference Level”, page 18. Upon selection of the measuring function and the reference level, all further steps are carried out by pushing the measuring button 9. With the reference level selected, place the measuring tool against the desired measuring line (e.g. a wall). Push the measuring button 9 to switch on the laser beam.

  • Do not point the laser beam at persons or animals and do not look into the laser beam yourself, not even from a large distance. Aim the laser beam at the target surface. Push the measuring button 9 again to initiate the measurement. In the tracking function, the measurement already starts upon first actuation of the measuring button 9. Typically, the measured value appears after 0.5 and latest after 4 seconds. The duration of the measurement depends on the distance, the light conditions and the reflection properties of the target surface. The end of the measurement is indicatedby a signal tone. The laser beam is switched off automatically upon completion of the measurement. When no measurement has taken place approx. 20 seconds after sighting, the laser beam is switched off automatically to save the batteries.

Selecting the Reference Level (see figures A–B)
Two different reference levels are available for measuring:

  • The rear edge of the measuring tool (e.g. when placed against a wall),
  • The front measuring-tool edge (e.g. when measuring onward from a table edge).

To change the reference level, press button 2 until the requested reference level is indicated on the display. Each time after switching on the measuring tool, the rear end of the measuring tool is preset as the reference level.

Measuring Functions

Length Measurement
For length measurement, push button 6. The indicator for length measurement appears in the display.

Push the measuring button 9 once for sighting and once more to take the measurement. The measured value is indicated at the bottom in the display.

Area Measurement
For area measurements, push button 5. The indicator for area measurement appears in the display  Afterward, measure the length and the width, one after another, in the same manner as a length measurement. The laser beam remains switched on between both measurements.
After taking the second measurement, the area/surface is automatically calculated and displayed. The last individual measured value is indicated at the bottom in the display, while the final result is shown at the top.

Volume Measurement
For volume measurements, push button 10. The indicator for volume measurement appears in the display Afterwards, measure the length, width and height, one after another, in the same manner as for a length measurement. The laser beam remains switched on
between all three measurements. After taking the third measurement, the volume is automatically calculated and displayed. The last individual measured value is indicated at the bottom in the display, while the final result is shown at the top.

Continuous Measurement (Tracking) (see figure C)
For continuous measurements, the measuring tool can be moved relative to the target, whereby the measuring value is updated approx. every 0.5 seconds. In this manner, as an example, you can move a certain distance away from a wall, while the actual distance can always be read. For continuous measurements, push button 12. The indicator for continuous measurement (tracking) appears in the displayBOSCH-PLR-25-Telemeter-FIG-13
Press the measuring button 9 to initiate the measuring procedure. Move the measuring tool until the required distance value is indicated at the bottom of the display. Pushing the measuring button 9 interrupts the continuous measurement. The current measured value is indicated in the display. Repeated pushing of the measuring button 9 starts the continuous measuring again. The continuous measurement automatically switches off after 5 minutes. The last measured value remains indicated on the display. The continuous measuring can also be ended by pushing the buttons 6, 5 or 10 which changes the measuring function.

Deleting Measured Values
Briefly pressing button 1 deletes the last individual measuring value determined in all measuring functions. Briefly pressing the button repeatedly deletes the individual measured values in reverse order.
Memory Functions
When switching off the measuring tool, the value in the memory is retained.
Storing/Adding Measured Values

Push the memory add button 4 in order to store the current measured value – a length, area or volume value, depending on the current measuring function. As soon as a value has been stored, “M” is indicated in the display and the “+” behind it briefly flashes. If a value is already stored in the memory, the new value is added to the memory contents, however, only when the measures of unit correspond. As an example, when an area value is in the memory and the current measured value is a volume value, the addition cannot take place. “Error” briefly flashes in the display.
Subtracting Measured Values
Push the memory subtraction button 3 in order to subtract the current measured value from the memory value. As soon as a value has been subtracted, “M” is indicated in the display and the “–” behind it briefly flashes. If a value is already stored in the memory, the new measured value can be subtracted only when the measures of unit correspond (see “Storing/Adding Measured Values”).
Displaying the Stored Value
Push the memory retrieve button 11 in order to display the value stored in the memory. “M=” is indicated in the display. When the memory contents “M=” is indicated in the display, it can be doubled by pushing the memory add button 4 or set to zero by pushing the memory subtract button 3. Deleting the Memory
To delete the memory contents, first push the memory retrieve button 11, so that “M=” is indicated in the display. Then briefly press button 1; “M” is no longer indicated in the display.

Working Advice

General Information
The reception lens 17 and the laser beam outlet 16 must not be covered while taking measurement. The measuring tool must not be moved while taking a measurement (with the exception of the continuous measurement function). Therefore, place the measuring tool, as far as this is possible, against or on the measuring points. Measurement takes place at the center of the laser beam, even when target surfaces are sighted at an incline.
Influence Effects on the Measuring Range
The measuring range depends upon the light conditions and the reflection properties of the target surface. For improved visibility of the laser beam when working outdoors and when the sunlight is intense, use the laser viewing glasses 19 (accessory) and the laser target plate 20 (accessory), or shade off the target surface.
Influence Effects on the Measuring Result
Due to physical effects, faulty measurements cannot be excluded when measuring on different surfaces. Included here are:

  • Transparent surfaces (e.g., glass, water),
  • Reflecting surfaces (e.g., polished metal, glass),
  • Porous surfaces (e.g. insulation materials),
  • Structured surfaces (e.g., roughcast, natural stone).

If required, use the laser target plate 20 (accessory) on these surfaces. Also, air layers with varying temperatures or indirectly received reflections can affect the measured value. Sighting with the Alingment Aid (see figure D) With the alignment aid 8, sighting over larger distances is a lot easier. For this, look alongside the aligning aid on the top side of the measuring tool. The laser beam runs parallel to this line of sight.

Troubleshooting – Causes and Corrective Measures

BOSCH-PLR-25-Telemeter-FIG-19

The measuring tool monitors the correct function for each measurement. When a defect is determined, only the symbol shown aside flashes in the display. In this case, or when the above mentioned corrective measures cannot correct an error, have the measuring tool checked by an after-sales service agent for Bosch power tools BOSCH-PLR-25-Telemeter-FIG-16

Accuracy Check of the Measuring Tool
The accuracy of the measuring tool can be checked as follows:

  • Select a permanently unchangeable measuring section with a length of approx. 3 to 10metres; its length must be precisely known (e.g. the width of a room or a door opening). The measuring distance must be indoors; the target surface for the measurement must be smooth and reflect well.
  • Measure the distance 10 times after another.

The deviation of the individual measurements from the mean value must not exceed ±3 mm (max.). Log the measurements, so that you can compare their accuracy at a later point in time.

Maintenance and Service

Maintenance and Cleaning
Store and transport the measuring tool only in the supplied protective pouch. Keep the measuring tool clean at all times. Do not immerse the measuring tool in water or other fluids.Wipe off debris using a moist and soft cloth. Do not use any cleaning agents or solvents. Maintain the reception lens 17 in particular, with the same care as required for eye glasses or the lens of a camera. If the measuring tool should fail despite the care taken in manufacturing and testing procedures, repair should be carried out by an authorised after-sales service centre for Bosch power tools. Do not open the measuring tool yourself. In all correspondence and spare parts orders, please always include the 10-digit article number given on the type plate of the measuring tool. In case of repairs, send in the measuring tool packed in its protective pouch 21.
After-sales Service and Customer Assistance

  • Our after-sales service responds to your questions concerning the maintenance and repair of your product as well as spare parts. Exploded views and information on spare parts can also be found under:
  • www.bosch-pt.com.
  • Our customer service representatives can answer your questions concerning possible applications and adjustment of products and accessories.

Great Britain

  • Robert Bosch Ltd. (B.S.C.)
  • P.O. Box 98
  • Broadwater Park
  • North Orbital Road
  • Denham
  • Uxbridge
  • UB 9 5HJ
  • Tel. Service: +44 (0844) 736 0109
  • Fax: +44 (0844) 736 0146
  • E-Mail: boschservicecentre@bosch.com.

Ireland

  • Origo Ltd.
  • Unit 23 Magna Drive
  • Magna Business Park
  • City West
  • Dublin 24
  • Tel. Service: +353 (01) 4 66 67 00
  • Fax: +353 (01) 4 66 68 88

Australia, New Zealand, and the Pacific Islands

  • Robert Bosch Australia Pty. Ltd.
  • Power Tools
  • Locked Bag 66
  • Clayton South VIC 3169
  • Customer Contact Center
  • Inside Australia:
  • Phone: +61 (01300) 307 044
  • Fax: +61 (01300) 307 045
  • Inside New Zealand:
  • Phone: +64 (0800) 543 353
  • Fax: +64 (0800) 428 570
  • Outside AU and NZ:
  • Phone: +61 (03) 9541 5555
  • www.bosch.com.au.

Republic of South Africa
Customer service
Hotline: +27 (011) 6 51 96 00

Gauteng – BSC Service Centre

  • 35 Roper Street, New Centre Johannesburg
  • Tel.: +27 (011) 4 93 93 75
  • Fax: +27 (011) 4 93 01 26
  • E-Mail: bsctools@icon.co.za.

KZN – BSC Service Centre

  • Unit E, Almar Centre
  • 143 Crompton Street Pinetown
  • Tel.: +27 (031) 7 01 21 20
  • Fax: +27 (031) 7 01 24 46
  • E-Mail: bsc.dur@za.bosch.com.

Western Cape – BSC Service Centre

  • Democracy Way, Prosperity Park
  • Milnerton
  • Tel.: +27 (021) 5 51 25 77
  • Fax: +27 (021) 5 51 32 23
  • E-Mail: bsc@zsd.co.za
  • Bosch Headquarters

Midrand, Gauteng

Disposal
Measuring tools, accessories, and packaging should be sorted for environmentally friendly recycling. Do not dispose of measuring tools and batteries/rechargeable batteries into household waste!
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Robert Bosch GmbH

  • Power Tools Division
  • 70745 Leinfelden-Echterdingen
  • Germany
  • www.bosch-pt.com.
  • 2 609 140 620 (2011.07) O / 118 WEU

OBJ_DOKU-16620-002.fm Page 1 Thursday, July 14, 2011, 10:46 AM

References

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