User manual BOSCH PLR 50 REV 6-2009

[. . . ] do not operate the measuring tool in explosive environments , such as in the presence of flammable liquids , gases or dusts. Sparks can be created in the measuring tool which may ignite the dust or fumes. 1 Length measurement button 2 Memory add button "M+" 3 Button for area and volume measurement 4 Memory retrieve button "M=" 5 Button for indirect length measurement 6 Tracking (continuous measurement) button 7 On/Off and memory delete button 8 Memory subtraction button "M­" 9 Button for selection of the reference level 10 Display 11 Alignment aid 12 Measuring button 13 Laser warning label 14 Positioning pin 15 Latch of the positioning pin 16 Spirit level 17 Latch of battery lid 18 Battery lid 19 Laser beam outlet 20 Reception lens 21 Serial number 22 Laser viewing glasses* 23 Carrying strap 24 Laser target plate* 25 Protective pouch 24 | English Display Elements a Variable measuring functions Length measurement Continuous measurement Area measurement Volume measurement Indirect length 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 Digital Laser Rangefinder Article number Measuring range Measuring accuracy (typically) Lowest indication unit Operating temperature Storage temperature Relative air humidity, max. Laser class Laser type Laser beam diameter (at 25 °C) and at 10 m distance, approx. [. . . ] When measuring from a corner), ­ The front measuring-tool edge (e. To change the reference level, press button 9 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. Push the measuring button 12 once for sighting and once more to take the measurement. Area Measurement For area/surface measurements, press button 3 until the indicator for area measurement appears on the display. 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. 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. English | 29 Indirect Length Measurement (see figure D) The indirect length 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 laser beam and the sought distance form an exact right angle (Pythagorean Theorem). Pay attention that the line segement A and the sought distance B form a right angle. After completing the second measurement, the distance B is calculated automatically. The last individual measured value is indicated at the bottom in the display, while the final result B is indicated at the top. 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. In this manner, as an example, you can move a certain distance away from a wall, while the actual distance can always be read. Move the measuring tool until the required distance value is indicated at the bottom of the display. When switching off the measuring tool, the value in the memory is retained. Storing/Adding Measured Values Push the memory add button 2 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. [. . . ] Only for EC countries: Do not dispose of measuring tools into household waste!According the European Guideline 2002/96/EC for Waste Electrical and Electronic Equipment and its implementation into national right, measuring tools that are no longer usable must be collected separately and disposed of in an environmentally correct manner. Battery packs/batteries: Do not dispose of battery packs/batteries into household waste, fire or water. battery packs/batteries should be collected , recycled or disposed of in an environmental-friendly manner. [. . . ]