Bosch Laser Measure GLM 40 Professional Instructions

BOSCH Laser Measure GLM 40 Professional

Safety Notes

All instructions must be read and observed in order to work safely with the measuring tool. The integrated protection in the measuring tool may be compromised if the measuring tool is not used in accordance with the instructions provided. Never make warning signs on the measuring tool unrecognizable. STORE THESE INSTRUCTIONS IN A SAFE PLACE AND INCLUDE THEM WITH THE MEASURING TOOL WHEN GIVING THEM TO A THIRD PARTY.

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 provided with a warning label (marked with the number 10 in the representation of the measuring tool on the graphics page).
• If the text of the warning label is not in your national language, stick the pro-vided warning label in your national language over it before operating for the first time.
• Do not direct the laser beam at persons or animals and do not stare into the direct or reflected laser beam yourself, not even from a distance.
• You could blind somebody, cause accidents or damage your eyes.
• If laser radiation strikes your eye, you must deliberately close your eyes and immediately turn your head away from the beam.
• Do not make any modifications to the laser equipment.
• 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 by 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 dust. Sparks can be created in the measuring tool which may ignite the dust or fumes.

Product Description and Specifications

Please unfold the fold-out page with the representation of the measuring tool and leave it unfolded while reading the operating instructions.

Intended Use
The measuring tool is intended for measuring distances, lengths, heights, and clearances, and for calculating areas and volumes.

Technical Data

• A) For measurements from the rear measuring tool edge, weak backlighting and 25 °C operating temperature are applicable for the high reflectivity of the target (e.g. a white-painted wall). In addition, a deviation influence of ± 0,05 mm/m must be taken into account.
• B) For measurements from the rear measuring tool edge, strong backlighting and – 10 °C to +45 °C operating temperature are applicable for low reflectivity of the target (e.g. a black box). In addition, a deviation influence of ±0.15 mm/m must be taken into account.
• C) The width of the laser line depends on the surface characteristics and on the ambient conditions.
• D) except battery compartment The measuring tool can be clearly identified with the serial number 9 on the type plate.

Product Features

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

1. Display
2. Measuring button[ ] 3 Minus button[–]
3. Function button[Func] 5 On/Off button[ ] 6 Plus button[+]
4. Battery lid
5. The latch of the battery lid
6. Serial number
7. Laser warning label
8. Reception lens
9. Laser beam outlet
10. Laser target plate*
11. Laser viewing glasses*
    • The accessories illustrated or described are not included as standard delivery.

Display Elements

• a Laser switched on
• b Temperature warning
• c Battery low indicator d Value
• e Unit of measure
• f Measuring functions
• Length measurement
• Continuous measurement
• Area/surface measurement
• Volume measurement
• Simple Pythagoras Measurement
• g Memory value displays h
• Error message “Error”

Assembly

Inserting/Replacing the Batteries

Using alkali-manganese or rechargeable batteries is recommended for the operation of the measuring tool. With 1.2-V-rechargeable batteries, fewer measurements could be possible than with 1.5-V-batteries. To open the battery lid 7, press the latch 8 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 individual 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 storing for longer periods, the batteries/rechargeable batteries can corrode and self-discharge.

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 sunlight.
• Do not subject the measuring tool to extreme temperatures or variations in temperature. As an example, do not leave it in vehicles for a long time. 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 on the measuring tool, it is recommended to carry out an accuracy check (see “Accuracy Check of the Distance Measurement”, page 31) each time before continuing to work.

Switching On and Off

• To switch on the measuring tool and the laser, briefly press the measuring button 2
• To switch on the measuring tool without the laser, briefly press the On/Off button 5
• 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.
• To switch off the measuring tool, press and hold the On/Off button 5
• The values in the memory are retained when you switch the tool off.

Measuring Procedure

Once switched on, the measuring tool is in the length measurement function. You can set other measuring functions by repeatedly pressing the button 4 Place the measuring tool against the desired starting point of the measurement (e.g. a wall). Note: If the measuring tool has been switched on using the On/Off button 5, briefly press the measuring button 2 to switch the laser on. To initiate the measurement, briefly press the measuring button 2 . Then the laser beam is switched off. To switch the laser beam on again, briefly press the measuring button 2. To initiate a further measurement, briefly press the measuring button 2 again.

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.

In the continuous measurement mode, the measurement begins immediately upon switching on the function.
Note: The measured value typically appears within 0.5 seconds and no later than 4 seconds. The duration of the measurement depends on the distance, the lighting conditions, and the reflective properties of the target surface. Upon completion of the measurement, the laser beam is automatically switched off.
Measuring Functions
Length Measurement

• For length measurements, repeatedly press button 4 [Func] until the indicator for length measurement appears on the display 1.
• To switch on the laser beam, briefly press the measuring button 2
• To measure, briefly press the measuring button 2 [].
• The measured value will be shown at the bottom of the display.
• Repeat the above-mentioned steps for each subsequent measurement.
• The last 3 measured values are shown on the display.
• The last measured value is at the bottom of the display, the penultimate measured value is above it, and so on.

Continuous Measurement (Tracking)

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, repeatedly press button 4 [Func] until the indicator for continuous measurement appears on the display 1. To switch on the laser beam, briefly press the measuring button 2  Move the measuring tool until the required distance value is indicated at the bottom of the display. Briefly press the measuring button 2 to end the continuous measurement. The last measured value will be shown at the bottom of the display. Continuous measurement automatically switches off after 5 mins. Briefly press the measuring button 2 to end the continuous measurement. The last measured value will be shown at the bottom of the display. Continuous measurement automatically switches off after 5 mins.

Area Measurement
For area measurements, repeatedly press button 4 [Func] until the indicator for area measurement appears on the display 1. Then measure the width and length one after the other as with a length measurement. The laser beam remains switched on between the two measurements. The distance to be measured flashes in the indicator for area measurement. The first measured value is shown at the top of the display. After the second measurement has been completed, the area will be automatically calculated and displayed. The end result is shown at the bottom of the display, while the individual measured values are shown above it.

Volume Measurement
For volume measurements, repeatedly press button 4 [Func] until the indicator for volume measurement appears on the display 1. Then measure the width, length, and depth one after the other as with a length measurement. The laser beam remains switched on between the three measurements. The distance to be measured flashes in the indicator for volume measurement. The first measured value is shown at the top of the display, while the second measured value is shown below it. After the third measure-ment has been completed, the calculated area from the two previous measurements will be displayed at the top of the display. The end result of the volume measurement is shown at the bottom of the display, while the last measured value is shown above it.

Simple Pythagoras Measurement 
The indirect height measurement is used to measure distances that cannot be measured directly because an obstacle would obstruct the laser beam or no target surface is available as a reflector. Correct results are achieved only when the right angles required for the respective measurement are exactly adhered to (Pythagorean Theo-rem).
For simple Pythagoras measurements, repeatedly press button 4 [Func] until the indicator for simple Pythagoras measurement appears on the display 1. Make sure that there is a right angle between the sought distance (height) and the horizontal distance (depth)! Then measure the depth and diagonal one after the other as with a length measurement. The laser beam remains switched on between the two measurements. The distance to be measured flashes in the indicator for simple Pythagoras measurement. The first measured value is shown at the top of the display. After the second measurement has been completed, the height will be automatically calculated and displayed. The end result is shown at the bottom of the display, while the individual measured values are shown above it.

Deleting Measured Values
Briefly pressing the On/Off button 5 [ ] will delete the last measured value in all measuring functions. Repeated brief pressing of the On/Off button 5 [ ] will delete the measured values in reverse order.

Memory Functions

Memory value display: Maximum of 10 values (measured values or end results) can be retrieved. To display memory values, repeatedly press button 4 [Func] until the symbol is shown on the display 1. The number of the memory value is shown at the top of the display, the corresponding memory value is shown at the bottom and the corresponding measuring function is shown on the left. Press button 6 [+] to browse forwards through the saved values. Press button 3 [–] to browse backward through the saved values.
If there is no value available in the memory, “0.000” is shown at the bottom of the display and “0” at the top.

The oldest value is located in position 1 in the memory, while the newest value is in position 10 (when 10 memory values are available). If a further value is saved, the oldest value in the memory is always deleted.

Deleting the Memory
To delete the contents of the memory, press button 4 [Func] so that the symbol appears on the display. Then briefly press the On/Off button 5 [ ] to delete the displayed value.
If the measuring tool is switched off during the memory function, the memory value shown on the display will be deleted.

Adding/Subtracting Values

Measured values or end results can be added or subtracted.

Adding Values
The following example describes the addition of areas: Measure an area as described in section “Area Measurement”, see page 27.

• Press button 6 [+]. The calculated area is shown on the display, and the symbol “+” flashes.
• Press the measuring button 2 [ ] to start another area measurement. Measure the area as described in the section “Area Measurement”, see page 27.
• Press button 6 [+] to calculate the sum. The end result is shown at the bottom of the display.

To exit addition, press button 4 [Func].

Subtracting Values
To subtract values, press button 3 [–]. The subsequent steps are the same as for “Adding Values”.

Changing the Unit of Measure
Unit of measure “m” (meters) is set by default. Switch the measuring tool on. Press and hold button 4 [Func] until “ ” and “MFT” flash on the display. “0.000 m” is shown at the bottom of the display. Press button 6 [+] or button 3 [–] to change the unit of measure. “0.000 ft” is shown at the bottom of the display. 

Press button 6 [+] or button 3 [–] to change the unit of measure again. “0’00”” is shown at the bottom of the display.

To exit the menu item, press the measuring button 2 [ ] or the On/Off button 5 [ ]. The selected setting remains saved after you switch off the measuring tool.

Switching the Sound On and Off

The sound is switched on by default. Switch the measuring tool on.

• Press and hold button 4 [Func] until “ ” and “MFT” flash on the display. “0.000 m” is shown at the bottom of the display.
• Press and hold button 4 [Func] again until “ ” and “Sound” flash on the display. “On” is shown at the bottom of the display.

• Press button 6 [+] or button 3 [–] to switch off the sound. “OFF” is shown at the bottom of the display.

• To switch on the sound, press button 6 [+] or button 3 [–] again.
• To exit the menu item, press the measuring button 2 [ ] or the On/Off button 5
• The selected setting remains saved after you switch off the measuring tool.

 

Display Illumination

The display illumination is continuously switched on. When no button is pressed, the display illumination is dimmed after approx. 10 seconds to preserve the batteries/rechargeable batteries. When no button is pressed after approx. 30 seconds, the display illumination goes out.

Working Advice

General Information
The reception lens 11 and the laser beam outlet 12 must not be covered when taking a measurement.
The measuring tool must not be moved while taking measurements. Therefore, place the measuring tool, as far as this is possible, against or on a firm stop or supporting surface.

Influence Effects on the Measuring Range
The measuring range depends on the lighting conditions and the reflective properties of the target surface. For better visibility of the laser beam in extraneous light, use the laser viewing glasses 14 (accessories) and the laser target plate 13 (accessories) or shade the target area.
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 13 (accessory) on these surfaces. Furthermore, faulty measurements are also possible when sighting inclined target surfaces.

Also, air layers with varying temperatures or indirectly received reflections can affect the measured value.

Accuracy Check of the Distance Measurement
The accuracy of the measuring tool can be checked as follows:

• Select a permanently unchangeable measuring section with a length of approx. 3 to 10 meters; its length must be precisely known (e.g. the width of a room or a door opening). The measurement should be carried out under favorable conditions, meaning, the measuring distance must be indoors and the target surface for the measurement must be smooth and reflect well.
• Measure the distance 10 times in succession.

The deviation of the individual measurements from the average value must not exceed ±4 mm over the entire measuring section in favorable conditions. Record the measurements in order to be able to compare the accuracy at a later date.

Troubleshooting – Causes and Corrective Measures

The measuring tool monitors the proper function for each measurement. When a defect is detected, all indicators on the display flash. In this case, or when the corrective measures listed above cannot correct the error, have your dealer forward the measuring tool to an authorized Bosch after-sales service.

Maintenance and Service

Maintenance and Cleaning

• 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 11 in particular, with the same care as required for eyeglasses or the lens of a camera. After-sales Service and Application Service 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 Bosch’s application service team will gladly answer questions concerning 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: [email protected]

Ireland

• Origo Ltd.
• Unit 23 Magna Drive
• Magna Business Park
• City West
• Dublin 24
• Tel. Service: (01) 4666700
• Fax: (01) 4666888

Australia, New Zealand, and Pacific Islands Robert Bosch Australia Pty. Ltd.

• Power Tools
• Locked Bag 66
• Clayton South VIC 3169
• Customer Contact Center

Inside Australia:

• Phone: (01300) 307044
• Fax: (01300) 307045

Inside New Zealand

• Phone: (0800) 543353
• Fax: (0800) 428570

Outside AU and NZ

• Phone: +61 3 9541555 www.bosch.com.au

Republic of South Africa

• Customer service
  • Hotline: (011) 6519600

Gauteng – BSC Service Centre 35 Roper Street, New Centre Johannesburg

• Tel.: (011) 4939375
• Fax: (011) 4930126
• E-Mail: [email protected]
• KZN – BSC Service Centre

Unit E, Almar Centre 143 Crompton Street Pinetown

• Tel.: (031) 7012120
• Fax: (031) 7012446
• E-Mail: [email protected]

Western Cape – BSC Service Centre Democracy Way, Prosperity Park Milnerton

• Tel.: (021) 5512577
• Fax: (021) 5513223
• E-Mail: [email protected]