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Bosch Glr 225 Laser Distance Measure R Manual

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    							Automatic switch-off after 
    approx..  
    –Laser
    –Rangefinder (Without measurement)
    Weight according to 
    EPTA-Procedure 01/2003  
    Protection class (excluding 
    battery compartment) 20 s 
    5 min
    6.35 oz (0.18 kg) 
    IP 54 (dust and Splash water 
    protected)
    -11-
    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 increased
    brightness of the laser point to the 
    ambient light intensity (interior 
    spaces, twilight). In unfavorable
    conditions (e.g. when measuring
    outdoors at 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 ±10 mm
    per 70m (±7/16 in per 230 ft). In
    favorable conditions, a deviation
    influence of ±0.05 mm/m (±1/64 in per 26 ft) must be taken into
    account. 
    C) In the Min. /Max. measurement 
    function, the maximum operating 
    temperature is +40 °C (104 *F). 
    D) Fewer measurements are
    possible when using 1.2 V 
    rechargeable batteries as
    compared 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 the serial number
    20 on the type plate.   
    						
    							INITIAL OPERATION
      Protect the rangefinder against    moisture and direct sun  
      irradiation.
      Do not expose the rangefinder    to extreme temperatures or 
      variations in temperature. 
    Switching On and Off
    To  switch on the rangefinder,
    briefly press the On/Off button  14
    or measuring button  10. When
    switching on the rangefinder, the  laser beam is not switched  
    on yet. 
    To 
    switch off the rangefinder, 
    press and hold the On/Off/clear  
    button  14for a few seconds.
    To save the batteries, the
    rangefinder switches off
    automatically after approx.. 5
    minutes when no measurement
    is carried out. 
    When a measured value has 
    been stored, it is retained in
    automatic switch-off mode. 
    -12-
    Inserting/Replacing the Battery 
    Use only alkali-manganese or 
    rechargeable batteries. 
    Fewer measurements are 
    possible when using 1.2 V 
    rechargeable batteries as
    compared with 1.5 V batteries. 
    To open the battery lid  19, press
    the latch  18 in the direction of
    the arrow and remove the battery 
    lid. Insert the batteries provided.
    Pay attention to the correct
    polarity of the batteries according
    to the representation in the
    battery compartment. 
    When the battery symbol appears
    in the display for the first time, then 
    at least 100 measurements are still
    possible. The batteries must be
    replaced when the battery symbol  flashes; taking measurements is 
    no longer possible. 
    Always replace all batteries at 
    the same time. Only use
    batteries from one brand and
    with the identical capacity. 
       
    Remove the batteries from 
       the rangefinder when not  
       using it for extended 
       periods. When storing for 
       extended periods, the batteries
       can corrode and discharge 
       themselves.
    INSTALLING HAND STRAP
    Feed string loop on end of hand
    strap  24under hand strap
    mounting post  27and pull out on
    other side. Feed hand strap  24
    through string loop end and  pull tight.
    Preparation
    Operation 
    						
    							-13-
    When switching on the
    rangefinder again,  “M”is
    indicated in the display. 
    Measuring Procedure
    The rangefinder offers a variety 
    of different measuring modes that
    can be selected by pushing the 
    corresponding mode button (see 
    “Measuring Mode”). After
    switching on, the rangefinder is in
    the “length measurement mode”. 
    Also, it is possible to select any of 
    the four different reference points
    for the measurement by pushing
    the reference point button  1(see
    “Selecting the Reference Point”).
    After switching on, the rear edge
    of the rangefinder is preset as the 
    reference point. 
    Upon selection of the measuring 
    mode and the reference point, all 
    further steps are carried out by 
    pushing the measuring 
    button  10.
    With the reference level selected,
    place the rangefinder against the
    desired measuring line 
    (e.g. a wall). 
    Push the measuring button  10to
    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  10again to initiate the
    measurement. In the continuous laser beam
    mode, the measurement already
    starts upon first actuation of the
    measuring button 
    10.
    The measured value appears
    after 0.5 to 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
    indicated by 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 Point (see figures B–E)
    For measuring, it is possible to
    select from four different 
    reference points: 
       the rear edge of the     rangefinder (e.g., when placing 
       the measuring rangefinder 
       flush against a wall),
       the rear edge of the extension     pin  15(e.g., for measurements
       out of corners).
       the front edge of the     rangefinder (e.g., as when 
       measuring from the edge of a 
       table onward),
       the center of the 1/4” threaded     hole  17(e.g., for measuring 
       with the tripod).
    !WARNING 
    						
    							-14-
    To select the reference point, 
    push button 1repeatedly until the
    required reference point is 
    indicated in the display. Each
    time after switching on, the rear
    edge of the rangefinder is preset
    as the reference point.
    Changing the Unit of Measure
    The unit of measure can be
    changed any time for display of
    the measured values, even for 
    already measured or calculated 
    values. 
    For display of the current length 
    measurement values, the units of 
    measure shown above are 
    available. 
    Area and volume values as well 
    as stored measured values can 
    only be displayed in “ft” or “m”. 
    To change the unit of measure, 
    push button  13until a new unit of
    measure is displayed. 
    The unit-of-measure setting is 
    retained when switching the 
    rangefinder on or off.
    Continuous Laser Beam
    If required, the rangefinder can
    be set so that the laser beam
    stays on in between measurements. For this, Briefly push button 
    13. The indication
    “ LASER ” lights up continuously
    in the display.
    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 this setting, the laser beam 
    also remains switched on 
    between measurements; to take
    measurement, it is only required
    to push the measuring button 
    10 once.
    To switch off the continuous laser
    beam, briefly push button  13
    again or switch the rangefinder
    off. When switching on again, the
    rangefinder is in the normal
    operation; the laser beam only
    appears when pushing the 
    measuring button  10.
    MEASURING  MODES Length Measurement
    For length measurements, push 
    button  5until the indicator for
    length measurement
    appears in the display.
    Press the measuring button  10
    once for sighting and once more
    to take the measurement. 
    The measured value is indicated 
    at the bottom in the display.
    !WARNING 
    						
    							-15-
    Area Measurement
    For area measurements, push 
    button  5until the indicator for
    area measurement
    appears in the display. 
    Afterwards, 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 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  5until the indicator for 
    volume measurement       
    appears in the display. Afterwards, measure the length,
    width and the 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. 
    Values above 999990 ft
    3
    cannot
    be displayed;  “Error”and “- - - -”
    appear on the display.  In this 
    case, switch the unit of measure
    to meters (see “Changing the
    Unit of Measure”, page 14). 
    Area or Volume Rounding of Large Calculations
    For values larger than 9999 feet
    or meters the rangefinder rounds
    the calculated value to the
    nearest 10 feet or 10 meters. 
    Accuracy in such situations is 
    always 99.95% or better.
    Minimum Measurement  (see figure F)
    The minimum measurement is
    used to determine the shortest 
    distance from a fixed reference 
    point. It is used, as an example,
    for determining plumb lines or
    horizontal partitions. 
    For minimum measurements, 
    press button  4 until  “MIN”
    appears in the display. 
    						
    							-16-
    To start the measurement, briefly 
    push the measuring button 10.
    Move the laser back and forth
    over the requested target (e.g.,
    the room ceiling for determining
    the plumb line) in such a manner
    that the reference point of the
    measurement (e.g., the tip of the
    extension pin  15) always 
    remains at the same location. 
    During the measurement, the 
    current length measurement
    value is indicated at the bottom of
    the display.
    The minimum value is indicated
    at the top right in the display. It is
    always overwritten, when the  
    current length measurement 
    value is lower than the present
    minimal value. 
    To end the minimum
    measurement, briefly push the 
    measuring button  10. Pushing the
    measuring button again starts a
    new measurement.
    Maximum Measurement  (see figure G)
    The maximum measurement is
    used to determine the greatest
    distance from a fixed reference
    point. It is used, as an example,
    for determining diagonals. For maximum measurements, push button 
    4until  “MAX” 
    appears in the display. 
    To start the measurement, briefly 
    push the measuring button  10.
    Move the laser back and forth
    over the requested target (e.g.,
    the room corner for determining
    the diagonal) in such a manner
    that the reference point of the
    measurement (e.g., the tip of the
    extension pin  15) always 
    remains at the same location.  
    During the measurement, the 
    current length measurement
    value is indicated at the bottom of
    the display.The minimum value is
    indicated at the top right in the
    display. It is always overwritten,
    when the current length 
    measurement value is larger than
    the present maximal value. 
    To end the maximum 
    measurement, briefly push the 
    measuring button  10. Pushing the
    measuring button again starts a
    new measurement.
    Indirect Length Measurement (see figure H)
    The indirect length measurement
    is used to measure distances 
    that cannot be measured directly 
    because an obstacle would 
    obstruct the laser beam or no  
    						
    							-17-
    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 (90°)
    (Pythagorean Theorem). 
    In the illustrated example, the 
    length Bis to be determined. For
    this purpose,  Aand  Cmust be
    measured.  Aand  Bmust form a
    right angle. 
    For indirect length  
    measurements, push button  11
    until the indicator for indirect
    length measurement       appears
    in the display.
    Measure the distance  Aas for a
    length measurement. Pay 
    attention that the line segment  A
    and the sought distance  Bform a
    right angle. Afterwards,  
    measure the distance  C. The
    laser beam remains switched on 
    between both measurements. 
    Pay attention that the reference 
    point of the measurement (e.g.,
    the rear edge of the rangefinder)
    is at the exact same location for
    both measurements. After completing the second
    measurement, the distance 
    Bis
    calculated automatically.The last
    individual measured value is
    indicated at the bottom in the
    display, while the final result  Bis
    indicated at the top in decimal
    feet or meters.
    Multi-Surface Area
    Measurement (see figure I)
    The multi-surface area
    measurement is used to
    determine the sum of several
    individual surfaces with a
    common length. 
    In the example shown, the total 
    surface of several walls that have
    the same room height  A, but 
    different lengths  B, are to 
    be determined. 
    For multi-surface area
    measurements, push button  11
    until   appears in the display.
    Measure the room height  Aas for a
    length measurement. The
    measured value is indicated both at
    the top and bottom in the display.
    The laser remains switched on. 
    Afterwards, measure length  B
    1 of
    the first wall. The surface is  
    automatically calculated and 
    indicated. The last length 
    measurement value is indicated 
    						
    							-18-
    at the bottom in the display, while 
    the surface is indicated at the top.
    The laser remains switched on. 
    Now, measure length B
    2 of the
    second wall. The individual  
    measuring value indicated at the
    bottom of the display is added to
    length  B
    1 and the sum of both
    lengths is multiplied with the
    stored length  A. The total surface
    value is indicated at the top in 
    the display.
    In this manner, you can measure
    any number of further lengthsB X, which are added and 
    multiplied with length  A.
    The condition for a correct
    area/surface calculation is that
    the first measured length (in the 
    example the room height A) is 
    identical for all partial surfaces. 
    To restart the multi-surface area
    measurement, push button  11twice.
    Continuous Measurement  (Tracking)(see figure J)
    Use Min. / Max. measurement 
    mode for continuous
    measurement function (tracking).
    The continuous measurement
    function (tracking) is used for the
    transferring of measurements,
    e.g., from construction plans. In
    continuous measurement mode, the rangefinder can be moved
    relative to the target, whereby the
    measured value is updated 
    approx.. every 0.5 seconds. As
    an example, the user can move
    from a wall to the required
    distance, while the actual
    distance can be read
    continuously.
    For continuous measurements,
    select the Min. or Max.
    measuring function. Move the rangefinder until the required
    distance value is indicated at the
    bottom of the display. 
    Pushing the measurement button 
    10 interrupts the continuous
    measurement.The current
    measured value is indicated in
    the bottom of display.
    Repeated pushing of the
    measuring button  10starts the
    measuring again. 
    The measuring automatically 
    switches off after 5 minutes. The
    last measured value remains 
    indicated in the display. The 
    measuring can also be ended by
    pushing button  5 or 11, which
    changes the measuring mode.
    Deleting Measured Values
    Pushing on clear button  14
    deletes the last individual
    measuring value determined in 
    						
    							-19-
    all measuring functions. Pushing 
    the button repeatedly deletes the
    individual measured values in
    reverse order. 
    In the multi-surface area 
    measurement mode, pushing
    button 14the first time deletes
    the last individually measured
    value; pushing the button a
    second time deletes all 
    lengths  B
    X.
    Memory Modes
    When switching off the 
    Rangefinder, the value in the
    memory is retained. 
    In the multi-surface area measur- 
    ement mode, the total surface
    value can be stored; in the
    minimum and maximum
    measuring mode, the minimum 
    and maximum value can be stored 
    correspondingly. Storing individual
    measuring values within these
    functions is not possible.
    Storing/Adding Measured  Values
    Push the memory add button  3in
    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 
    “add”is briefly
    indicated next to it. 
    If a value is already stored in the
    memory, the new value is added 
    to the memory contents,
    however, only if it’s the same type
    of measurement. 
    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. 
    However, values of the same 
    type (e.g. length values) can be 
    added no matter if they have 
    been measured in feet and
    inches, decimal feet or meters.
    Subtracting Measured Values
    Push the memory subtraction
    button  12in 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 is
    briefly followed by  “SUB”.
    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”). 
    						
    							-20-
    Displaying the Stored Value 
    Push the memory retrieve button 2in 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  3or set to zero by
    pushing the memory subtract
    button  12.
    The memorized values can only
    be displayed in decimal feet 
    or meters. Deleting the Memory
    To delete the memory contents,
    first push the memory retrieve
    button  2, so that  “M=”is 
    indicated in the display. Then
    push the clear button  14; “M” is
    no longer indicated in the display.
    The reception lens  22and the
    laser beam outlet  21must not be
    covered when taking 
    a measurement. 
    The rangefinder must not be
    moved while taking a 
    measurement (with the exception
    of the continuous measurement
    mode). Therefore, whenever
    possible, place the rangefinder
    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. 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 
    25and the laser target
    plate  26, or shade off the
    target surface. 
    When measuring against 
    transparent surfaces (e.g. glass,
    water) or reflecting surfaces,
    faulty measurements are 
    possible. Also, porous or 
    structured surfaces, air layers
    Operating Instructions 
    						
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