GLM 50 Professional - Laser pointer BOSCH - Free user manual and instructions

USER MANUAL GLM 50 Professional BOSCH

Measuring accuracy (typical) 1.5 mm±0.05 mm/m

Measuring accuracy (typical under unfavourable condi- tions)

Laser type 635 nm, <1 mW Laser beam diameter (at 25 °C) approx. –at 10m distance –at 50m distance 6mm

Automatic switch-off after approx. –Laser –Measuring tool (without measurement) 20 s 5min Batteries Rechargeable batteries 2x1.5VLR03(AAA) 2x1.2VHR03(AAA) Battery life, approximately – Individual measurements – Continuous measurement

Weight according to EPTA- Procedure 01:2014

OBJ_BUCH-1444-007.book Page 12 Thursday, June 9, 2016 1:34 PMEnglish | 13 Bosch Power Tools 1 609 92A 1YM | (9.6.16) Product Features The numbering of the product features shown refers to the il- lustration of the measuring tool on the graphic page. 1 Display 2 Measuring button 3 Button for area/surface, volume and indirect height measurement (Pythagoras) 4 Delete / On/Off button** 5 Minus button 6 Button for selection of the reference level 7 Fixture for carrying strap 8 Plus button 9 Length and continuous measurement button 10 Battery lid 11 Laser beam outlet 12 Reception lens 13 Serial number 14 1/4" thread 15 Laser warning label 16 Latch of battery lid 17 Protective pouch 18 Tripod* 19 Laser viewing glasses* 20 Laser target plate*

• The accessories illustrated or described are not included as standard delivery. ** Keep button pressed to call up the extended functions. Display Elements a Measured-value lines b Result line c Measuring functions d Laser, switched on e Measurement reference level f Temperature warning g Battery low indicator h “ERROR” indication Assembly Inserting/Replacing the Batteries Using alkali-manganese or rechargeable batteries is recom- mended for operation of the measuring tool. Less measurements are possible when using 1.2 V recharge- able batteries than with 1.5 V batteries. To open the battery lid 10, press the latch 16 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 inserting the batteries/rechargeable batteries, pay at- tention 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 possi- ble. The continuous measurement mode is deactivated. When the battery symbol flashes, the batteries/recharge- able 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 batter- ies/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/rechargea- ble batteries can corrode and self-discharge. Dimensions 53 x 114 x 30 mm Degree of protection IP 54 (dust and splash water protected) A) The working range increases depending on how well the laser light is reflected from the surface of the target (scat- tered, not reflective) and with increased brightness of the la- ser point to the ambient light intensity (interior spaces, twilight). In unfavourable conditions (e.g. when measuring outdoors at intense sunlight), it may be necessary to use the target plate. B) For measurements from the rear measuring-tool edge. In unfavourable conditions (e. g. at intense sunlight or an insuf- ficiently reflecting surface), a deviation influence of ±0.15 mm/m must be taken into account. In favourable conditions, a deviation influence of ±0.05 mm/m must be taken into ac- count. C) In the continuous measurement function, the maximum operating temperature is +40 °C. D) The width of the laser line depends on the surface charac- teristics and on the ambient conditions. E) Less measurements are possible when using 1.2 V re- chargeable batteries than with 1.5 V batteries. The battery life listed refers to measurements without display illumina- tion. The measuring tool can be clearly identified with the serial number 13 on the type plate. Digital Laser Measure GLM 50 Length measurement Continuous measurement Area/surface measurement Volume measurement Simple Pythagoras Measurement OBJ_BUCH-1444-007.book Page 13 Thursday, June 9, 2016 1:34 PM14 | English 1 609 92A 1YM | (9.6.16) Bosch Power Tools Operation Initial Operation Do not leave the switched-on measuring tool unattend- ed 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 tempera- tures or variations in temperature. As an example, do not leave it in vehicles for a long time. In case of large vari- ations 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 tempera- ture, 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 “Ac- curacy Check of the Distance Measurement”, page 16) each time before continuing to work. Switching On and Off For switching on the measuring tool, the following possibili- ties are given: – Pressing the On/Off button 4: The measuring tool is switched on and is in length measurement mode. The laser is not activated. – Pressing the measuring button 2: Measuring tool and laser are switched on. The measuring tool is in length measure- ment mode. 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 the On/Off button 4 for a few seconds. When no button on the measuring tool is pressed for approx. 5 minutes, the measuring tool automatically switches off to save the batteries. Measuring Procedure After switching on by pressing the measuring button 2, the measuring tool is always in length measurement mode. Other measuring modes can be switched to by pressing the respec- tive function/mode button (see “Measuring Functions”, page 14). After switching on, the rear edge of the measuring tool is pre- set as the reference level for the measurement. By pressing the reference level button 6, the reference level can be changed (see “Selecting the Reference Level (see figure A)”, page 14). Place the measuring tool with the selected reference plane against the desired starting point of the measurement (e.g. a wall). Briefly press the measuring button 2 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. Briefly press the measuring button 2 again to initate the measurement. In the continuous measurement mode, the measurement be- gins immediately upon switching on the function. Typically, the measured value appears after 0.5 seconds and latest after 4 seconds. The duration of the measurement de- pends on the distance, the light conditions and the reflection properties of the target surface. 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 figure A) For the measurement, you can select between three different reference planes: – the rear measuring-tool edge (e.g. when measuring on- ward from a wall), – the front measuring-tool edge (e.g. when measuring on- ward from a table edge), – The centre of thread 14 (e.g. for tripod measurements). To select the reference level, press button 6 until the request- ed reference level is indicated on the display. Each time after switching on the measuring tool, the rear end of the measur- ing tool is preset as the reference level. Display Illumination The display illumination is automatically activated, depending on the ambient brightness. When no button is pressed after the display illumination switches on, it is dimmed to save the batteries. Measuring Functions Simple Length Measurement (see figure B) For length measurements, press button 9 until the “length measurement” indication appears on the display. To switch the laser on and for measuring, briefly press the measuring button 2 once each time. The measured value is displayed in the re- sult line b. For several subsequent length measurements, the last meas- ured results are displayed in the measured-value lines a. Area Measurement (see figure C) For area/surface measurements, press button 3 until the indi- cator for area/surface measurement appears on the dis- play. Afterwards, measure the length and the width, one after an- other, in the same manner as a length measurement. The laser beam remains switched on between both measurements. OBJ_BUCH-1444-007.book Page 14 Thursday, June 9, 2016 1:34 PMEnglish | 15 Bosch Power Tools 1 609 92A 1YM | (9.6.16) Upon completion of the second measure- ment, the surface is automatically calcu- lated and displayed in the result line b. The individual measured values are dis- played in the measured-value lines a. Volume Measurement (see figure D) For volume measurements, press button 3 until the indicator for volume measurement appears on the display. Afterwards, measure the length, width and the height, one after another, in the same manner as for a length measure- ment. The laser beam remains switched on between all three measurements. Upon completion of the third measure- ment, the volume is automatically calcu- lated and displayed in the result line b. The individual measured values are dis- played in the measured-value lines a. Values above 999999 m

cannot be indi- cated; “ERROR” appears on the display. Divide the volume to be measured into individual measurements; their values can then be calculated separately and then summarized. Continuous Measurement (Tracking) (see figure E) 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 ex- ample, you can move a certain distance away from a wall, while the actual distance can always be read. For continuous measurements, press button 9 until the indi- cator for continuous measurement appears on the display. To start the continuous measurement, press the measuring button 2. The current measured value is displayed in the result line b. Pressing the measuring button 2 ends the continuous measurement. The last meas- ured value is displayed in the result line b. Pressing the measuring button 2 again re- starts a continuous measuring run. Continuous measurement automatically switches off after 5 min. The last measured value remains indicated in the result line b. Indirect height measurement / Simple Pythagoras Meas- urement (see figure F) The indirect height measurement is used to measure distanc- es 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 Theorem). Pay attention that the reference plane of the measurement (e.g. the rear edge of the measuring tool) remains exactly at the same location for all individual measurements within a measuring sequence. The laser beam remains switched on between the individual measurements. Press button 3 until the indication for simple Pythagoras measurement appears on the display. Measure distances “1” and “2” in this sequence as for a length measurement. Pay attention that a right angle exists between distance “1” and the sought distance “X”. Upon completion of the last measure- ment, the result for the sought distance “X” is displayed in the result line b. The in- dividual measured values are displayed in the measured-value lines a. Deleting Measured Values Briefly pressing button 4 deletes the last individual measuring value determined in all measuring functions. Briefly pressing the button repeatedly deletes the individual measured values in reverse order. Adding Measured Values To add measuring values, firstly carry out a measurement. Then press the plus button 8. For confirmation, “+” appears on the display. To add volumes or areas/surfaces, press the plus button 8 af- ter the first completed measuring process. For confirmation, “+” appears on the display left of the volume/area symbol. Then carry out a second measurement. To call up the sum of both measurements, press the plus button 8 again. The calcula- tion is indicated in the measured-value lines a, and the sum in the result line b. After calculation of the sum, further measured values can be added to this re- sult when pressing the plus button 8 prior to each measurement. Notes on the addition: – Mixed length, area/surface and volume values cannot be added together. For example, when a length and area val- ue are added, “ERROR” briefly appears on the display af- ter pressing the plus button 8. Afterwards, the measuring tool switches back to the last active measuring mode. – For each calculation, the result of one measurement is added (e.g. the volume value); for continuous measure- ments, this would be the displayed measured value in re- sult line b. The addition of individual measured values from the measured-value lines a is not possible. Subtracting Measured Values To subtract measuring values, press mi- nus button 5; For confirmation, “–” is in- dicated on the display. The further proce- dure is analog to “Adding Measured Values”. Working Advice General Information The reception lens 12 and the laser beam outlet 11 must not be covered when taking a measurement. The measuring tool must not be moved while taking a meas- urement (with the exception of the continuous measurement OBJ_BUCH-1444-007.book Page 15 Thursday, June 9, 2016 1:34 PM16 | English 1 609 92A 1YM | (9.6.16) Bosch Power Tools function). 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 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 (ac- cessory) 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 ex- cluded 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. Furthermore, faulty measurements are also possible when sighting inclined target surfaces. Also, air layers with varying temperatures or indirectly re- ceived reflections can affect the measured value. Accuracy Check of the Distance Measurement The accuracy of the distance measurement can be checked as follows: – Select a permanently unchangeable measuring section with a length of approx. 1 to 10 metres; its length must be precisely known (e.g. the width of a room or a door open- ing). The measuring distance must be indoors; 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 mean value must not exceed ±2 mm (max.). Log the measure- ments, so that you can compare their accuracy at a later point of time. Working with the Tripod (Accessory) The use of a tripod is particularly necessary for larger distanc- es. Position the measuring tool with the 1/4" thread 14 onto the quick-change plate of the tripod 18 or a commercially available camera tripod. Tighten the measuring tool with the locking screw of the quick-change plate. Set the corresponding reference level for measurement with a tripod by pushing button 6 (the reference level is the thread). Troubleshooting – Causes and Corrective Measures Cause Corrective Measure Temperature warning indicator (f) flashing; measure- ment not possible The measuring tool is outside the operating temperature range from –10°C to +50°C (in the continu- ous measurement function up to +40 °C). Wait until the measuring tool has reached the op- erating temperature “ERROR” indication in the display Addition/Subtraction of measured values with different units of measure Only add/subtract measured values with the same units of measure The angle between the laser beam and the target is too acute. Enlarge the angle be- tween the laser beam and the target The target surface reflects too in- tensely (e.g. a mirror) or insuffi- ciently (e.g. black fabric), or the ambient light is too bright. Work with the laser tar- get plate 20 (accessory) The laser beam outlet 11 or the re- ception lens 12 are misted up (e.g. due to a rapid temperature change). Wipe the laser beam out- let 11 and/or the recep- tion lens 12 dry using a soft cloth Calculated value is greater than 999999 m/m

OBJ_DOKU-26762-007.fm Page 179 Friday, June 10, 2016 9:34 AM180 | 한국어 1 609 92A 1YM | (9.6.16) Bosch Power Tools

OBJ_BUCH-1444-007.book Page 185 Thursday, June 9, 2016 1:34 PM186 | 1 609 92A 1YM | (9.6.16) Bosch Power Tools

2x1.5 LR03 (AAA) 2x1.2 HR03 (AAA)

GLM 50 OBJ_BUCH-1444-007.book Page 186 Thursday, June 9, 2016 1:34 PM | 187 Bosch Power Tools 1 609 92A 1YM | (9.6.16)

OBJ_BUCH-1444-007.book Page 188 Thursday, June 9, 2016 1:34 PM | 189 Bosch Power Tools 1 609 92A 1YM | (9.6.16)

OBJ_BUCH-1444-007.book Page 189 Thursday, June 9, 2016 1:34 PM190 | 1 609 92A 1YM | (9.6.16) Bosch Power Tools