GLL 280 P Professional - Niveau laser BOSCH - Free user manual and instructions

USER MANUAL GLL 280 P Professional BOSCH

OBJ_BUCH-907-005.book Page 2 Monday, July 4, 2016 2:41 PM3 | 1 609 92A 1YU | (4.7.16) Bosch Power Tools

OBJ_BUCH-907-005.book Page 3 Monday, July 4, 2016 2:41 PM1 609 92A 1YU | (4.7.16) Bosch Power Tools 4 | 30 mm

OBJ_BUCH-907-005.book Page 4 Monday, July 4, 2016 2:41 PM5 | 1 609 92A 1YU | (4.7.16) Bosch Power Tools

• The accessories illustrated or described are not included as standard delivery. Technical Data Line laser GLL 2-80 P Article number 3 601 K63 2.. Working range

–Standard –With pulse function – With laser receiver 20 m 15 m 5–80m Levelling Accuracy ±0.2mm/m Self-levelling range, typically ±4° Levelling duration, typically <4s Operating temperature –10 °C ... +45 °C Storage temperature –20 °C ... +70 °C Relative air humidity, max. 90 % Laser class

Shortest pulse duration 1/1600 s Divergence of laser line

0.5 mrad (full angle)

Tripod mount 1/4", 5/8" Batteries 4x1.5VLR6(AA) Operating duration –With 2 laser planes –With 1 laser plane

18 h Weight according to EPTA-Procedure 01:2014

Dimensions (length x width x height) 159 x 54 x 141 mm Degree of protection IP 54 (dust and splash water protected)

1) The working range can be decreased by unfavourable environmental

conditions (e.g. direct sun irradiation). The measuring tool can be clearly identified with the serial number 13 on the type plate. OBJ_BUCH-907-005.book Page 12 Monday, July 4, 2016 2:41 PMEnglish | 13 Bosch Power Tools 1 609 92A 1YU | (4.7.16) Assembly Inserting/Replacing the Batteries Alkali-manganese batteries are recommended for the meas- uring tool. To open the battery lid 10, slide the latch 11 in the direction of the arrow and fold the battery lid up. Insert the batteries. When inserting, pay attention to the correct polarity accord- ing to the representation on the inside of the battery lid. When the batteries become weak, a single 5 s audio signal will sound. The battery low indicator 2 continuously flashes red. The measuring tool can be operated for less then 2 h. If the batteries are weak when switching on the measuring tool, the 5 s audio signal will sound directly after switching on the measuring tool. Always replace all batteries at the same time. Only use batter- ies from one brand and with the identical capacity. Remove the batteries from the measuring tool when not using it for extended periods. When storing for extended periods, the batteries can corrode and self-discharge. Operation Initial Operation Loud audio signals will sound under certain conditions while operating the measuring tool. Therefore, keep the measuring tool away from your ear or other per- sons. The loud audio signal can cause hearing damage. 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. Damage to the measuring tool can impair its accuracy. After heavy impact or shock, compare the laser lines or plumb beams with a known horizontal or vertical reference line or with already checked plumb points. Switch the measuring tool off during transport. When switching off, the levelling unit, which can be damaged in case of intense movement, is locked. Switching On and Off To switch on the measuring tool, slide the On/Off switch 7 to the “on” position (when working without automatic level- ling) or to the “on” position (when working with automat- ic levelling). Imm ediately after switching on, the measuring tool sends laser beams out of the exit openings 1. 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. 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. To switch off the measuring tool, slide the On/Off switch 7 to the “off” position. When switching off, the levelling unit is locked. When exceeding the maximum permitted operating tempera- ture of 45 °C, the measuring tool switches off to protect the laser diode. After cooling down, the measuring tool is ready for operation and can be switched on again. Deactivating the Automatic Shut-off When no button on the measuring tool is pressed for approx. 30 minutes, the measuring tool automatically switches off to save the batteries. To switch on the measuring tool after automatic shut-off, either slide the On/Off switch 7 to the “off” position and then switch the measuring tool on again or press the operating mode button 5 once or press the pulse-function button 3 once. To deactivate the automatic shut-off, keep the operating mode button 5 pressed for at least 3 s (while the measuring tool is switched on). Deactivation of the automatic shut-off is confirmed by brief flashing of the laser beams. To activate the automatic shut-off, switch the measuring tool off and then on again or press and hold the operating mode button 5 for at least 3 s. Deactivating the Signal Tone After the measuring tool has been switched on, the audio sig- nal is always activated. To deactivate/activate the audio signal, press and hold the operating mode button 5 and the pulse-function button 3 at the same time for at least 3 s. The audio signal activation and deactivation are both con- firmed by three short beeps. Operating Modes The measuring tool has three operating modes between which you can switch at any time: – Horizontal operation: generates a horizontal laser plane, – Vertical operation: generates a vertical laser plane, – Cross-line operation: generates a horizontal and vertical laser plane. After switching on, the measuring tool is in horizontal opera- tion. Press the operating mode button 5 to change the operat- ing mode. All three operating modes can be selected either with or with- out automatic levelling. Pulse Function When working with the laser receiver 17, the pulse function must be activated, – independent of the selected operating mode. In pulse function, the laser lines flash at very high frequency and thus become detectable by the laser receiver 17. To switch on the pulse function, press button 3. When the pulse function is switched on, the pulse-function indicator 4 lights up green. When the pulse function is switched on, the visibility of the la- ser lines is reduced for the human eye. Therefore, shut off the pulse function by pushing button 3 again when working with- out laser receiver. When the pulse function is switched off, the pulse-function indicator 4 is deactivated. OBJ_BUCH-907-005.book Page 13 Monday, July 4, 2016 2:41 PM14 | English 1 609 92A 1YU | (4.7.16) Bosch Power Tools Automatic Levelling Working with Automatic Levelling Position the measuring tool on a level and firm support, attach it to the holder 19 or to the tripod 22. When working with automatic levelling, push the On/Off switch 7 to the “ on” position. After switching on, the levelling function automatically com- pensates irregularities within the self-levelling range of ±4°. The levelling is finished as soon as the laser beams do not move any more. If automatic levelling is not possible, e.g. because the surface on which the measuring tool stands deviates by more than 4° from the horizontal plane, the laser lines begin to flash rapid- ly. When the audio signal is activated, a fast-beat signal sounds for 30 s (maximum). This alarm is deactivated within 10 s after switching on, in order to allow adjustment of the measuring tool. Set up the measuring tool in level position and wait for the self-levelling to take place. As soon as the measuring tool is within the self-levelling range of ±4°, all laser beams light up continuously and the audio signal is switched off. In case of ground vibrations or position changes during oper- ation, the measuring tool is automatically levelled in again. To avoid errors, check the position of the horizontal and ver- tical laser line with regard to the reference points upon re- levelling. Working without Automatic Levelling For working without automatic levelling, slide the On/Off switch 7 to the “ on” position. When automatic levelling is switched off, indicator 6 lights up red and for the first 30 s laser beams flash slowly. When the automatic levelling is switched off, the measuring tool can be held by hand or placed on an inclined surface. In cross-line operation, the two laser lines do not necessarily run at a right angle to each other. Levelling Accuracy Influences on Accuracy The ambient temperature has the greatest influence. Espe- cially temperature differences occurring from the ground upward can divert the laser beam. Because the largest difference in temperature layers is close to the ground, the measuring tool should always be mounted on a tripod when measuring distances exceeding 20 m. If pos- sible, also set up the measuring tool in the centre of the work area. In addition to external influences, device-specific influences (e.g. falls or heavy impacts) can also lead to deviations. For this reason, check the levelling accuracy each time before beginning work. Firstly, check the levelling accuracy of the horizontal laser line and then the levelling accuracy of the vertical laser line. Should the measuring tool exceed the maximum deviation during one of the tests, please have it repaired by a Bosch after-sales service. Checking the Horizontal Levelling Accuracy of the Lateral Axis For this check, a free measuring distance of 5 m on a firm sur- face between two walls A and B is required. –Mount the measuring tool onto a tripod or place it on a firm and level surface close to wall A. Switch on the measuring tool. Select cross-line operation with automatic levelling. – Direct the laser against the close wall A and allow the meas- uring tool to level in. Mark the centre of the point where the laser lines cross each other on the wall (point I). –Turn the measuring tool by 180°, allow it to level in and mark the cross point of the laser lines on the opposite wall B (point II

– Without turning the measuring tool, position it close to wall B. Switch the measuring tool on and allow it to level in. – Align the height of the measuring tool (using a tripod or by underlaying, if required) in such a manner that the cross point of the laser lines is projected against the previously marked point II on the wall B.

OBJ_BUCH-907-005.book Page 14 Monday, July 4, 2016 2:41 PMEnglish | 15Bosch Power Tools 1 609 92A 1YU | (4.7.16) – Without changing the height, turn around the measuring tool by 180°. Direct it against the wall A in such a manner that the vertical laser line runs through the already marked point I. Allow the measuring tool to level in and mark the cross point of the laser lines on the wall A (point III). –The difference d of both marked points I and III on wall A results in the actual height deviation of the measuring tool alongside the lateral axis. On the measuring distance of 2 x 5 m =10m, the maximum allowable deviation is: 10 m x±0.2mm/m =±2mm. Thus, the difference d between points I and III must not ex- ceed 2 mm (max.). Checking the Levelling Accuracy of the Vertical Line For this check, a door opening is required with at least 2.5 m of space (on a firm surface) to each side of the door. –Position the measuring tool on a firm, level surface (not on a tripod) 2.5 m away from the door opening. Allow the measuring tool to level in while in vertical operation with automatic levelling, and direct the laser beam at the door opening.– Mark the centre of the vertical laser line at the floor of the door opening (point I), at a distance of 5 m beyond the other side of the door opening (point II) and at the upper edge of the door opening (point III). – Rotate the measuring tool by 180° and position it on the other side of the door opening directly behind point II. Al- low the measuring tool to level in and align the vertical laser line in such a manner that its centre runs exactly through points I and II. – Mark the centre of the laser line at the upper edge of the door opening as point IV. – The difference d of both marked points III and IV results in the actual deviation of the measuring tool to the plumb line. – Measure the height of the door opening. The maximum admissible deviation is calculated as follows: Doubled height of the door opening x 0.2 mm/m Example: For a door-opening height of 2 m, the maximum de- viation may be 2x2m x±0.2mm/m =±0.8mm. Consequently, points III and IV may be no more than 0.8 mm (max.) apart fro m each other. Working Advice Always use the centre of the laser line for marking. The width of the laser line changes with the distance.Working with the Laser Target PlateThe laser target plate 15 increases the visibility of the laser beam under unfavourable conditions and at large distances. The reflective part of the laser target plate 15 improves the visibility of the laser line. Thanks to the transparent part, the laser line is also visible from the back side of the laser target plate.Working with the Tripod (Accessory) A tripod offers a stable, height-adjustable measuring support. Position the measuring tool with the 1/4" tripod mount 9 onto the thread of the tripod 22 or a commercially available cam- era tripod. For fastening to a commercially available construc- tion tripod, use the 5/8" tripod mount 8. Tighten the measur- ing tool with the tripod mounting stud.Fastening with the Universal Holder (Accessory) (see figure D) With the universal holder 19, you can fasten the measuring tool, e.g., to vertical surfaces, pipes or magnetisable materials. The universal holder is also suitable for use as a ground tripod and makes the height adjustment of the measuring tool easier.

Laser Radiation Class 2 do not stare into beam IEC 60825-1:2014-03 <1 mW, 640 nm OBJ_BUCH-907-005.book Page 183 Monday, July 4, 2016 2:41 PM184 | 한국어 1 609 92A 1YU | (4.7.16) Bosch Power Tools

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Laser Radiation Class 2 do not stare into beam IEC 60825-1:2014-03 <1 mW, 640 nm OBJ_BUCH-907-005.book Page 188 Monday, July 4, 2016 2:41 PM | 189 Bosch Power Tools 1 609 92A 1YU | (4.7.16)

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5 m OBJ_BUCH-907-005.book Page 191 Monday, July 4, 2016 2:41 PM192 | 1 609 92A 1YU | (4.7.16) Bosch Power Tools – A

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