GLM250 VF激光测距仪数据表.pdf - 第22页

22 | English 1 609 92A 1YW | (8.7.1 6) Bosch Power Tools Now, measure length B 2 of the sec- ond wall. The individually mea sured value displayed in the centre meas- ured-value li ne a is added to the length B 1 . The su…

English | 21

Bosch Power Tools 1 609 92A 1YW | (8.7.16)

the same location for all individual measurements within a

measuring sequence (exception: trapezium measurements).

The laser beam remains switched on between the individual

measurements.

For indirect length measurements, four measuring modes are

available. Each measuring mode can be used for determining

different distances. To select the measuring mode, press the

function-mode button 3 until the symbol of the desired meas-

uring mode is indicated on the display.

a) Simple Pythagoras Measurement (see figure H)

Press the function-mode button 3 until the indication for sim-

ple Pythagoras measurement appears on the display.

Measure distances “1” and “2” in this sequence with a length

measurement. Pay attention that a right angle exists between

distance “1” and the sought distance “E”.

Upon completion of the last measure-

ment, the result for the sought dis-

tance “E” is displayed in the result

line c. The individual measured values

are displayed in the measured-value

lines a.

b) Double Pythagoras Measurement (see figure I)

Press the function-mode button 3 until the indication for dou-

ble Pythagoras measurement appears on the display.

Measure distances “1”, “2” and “3” in this sequence with a

length measurement. Pay attention that a right angle exists

between distance “1” and the sought distance “E”.

Upon completion of the last measure-

ment, the result for the sought dis-

tance “E” is displayed in the result

line c. The individual measured values

are displayed in the measured-value

lines a.

c) Combined Pythagoras Measurement (see figure J)

Press the function-mode button 3 until the indication for com-

bined Pythagoras measurement appears on the display.

Measure distances “1”, “2” and “3” in this sequence with a

length measurement. Pay attention that a right angle exists

between distance “1” and the sought distance “E”.

Upon completion of the last measure-

ment, the result for the sought dis-

tance “E” is displayed in the result

line c. The individual measured values

are displayed in the measured-value

lines a.

d) Trapezium Measurement (see figure K)

Press the function-mode button

3 until the indication for tra-

pezium measurement appears on the display.

Measure distances “1”, “2” and “3” in this sequence with a

length measurement. Pay attention that the measurement of

distance “3” starts exactly at the end point of distance “1”

and that a right angle exists between distances “1” and “2” as

well as between “1” and “3”.

Upon completion of the last measure-

ment, the result for the sought dis-

tance “E” is displayed in the result

line c. The individual measured values

are displayed in the measured-value

lines a.

Time-delayed Length Measurement

Time-delayed length measurement is helpful e.g. when meas-

uring at hard to reach locations or when movements of the

measuring tool during measuring are to be prevented.

For a time-delayed length measurement, press function-

mode button 3 until the indicator for time-delayed length

measurement appears on the display.

The time period from the actuation until the measurement

takes place is displayed in the measured-value line a. The time

period can be adjusted between 1 s and 60 s by pressing the

plus button 6 or the minus button 12.

Then press the measuring button 7 to

switch the laser beam on and aim at

the target point. Press the measuring

button 7 again to actuate the meas-

urement. The measurement takes

place after the set time period. The

measured value is displayed in the re-

sult line c.

The addition and subtraction of measuring results as well as

minimum/maximum measurements are not possible for time-

delayed length measurements.

Wall Surface Measurement (see figure L)

The wall surface measurement is used to determine the sum

of several individual surfaces with a common height.

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 wall surface measurements, press the function-mode but-

ton 3 until the indicator for wall surface measurement ap-

pears on the display.

Measure the room height A as for a length measurement. The

measured value (“cst”) is displayed in the top measured-val-

ue line a. The laser remains switched on.

Afterwards, measure length B

of the

first wall. The surface is automatically

calculated and displayed in the result

line c. The length measurement value

is displayed in the centre measured-

value line a. The laser remains

switched on.

OBJ_BUCH-947-007.book Page 21 Friday, July 8, 2016 10:44 AM

22 | English

1 609 92A 1YW | (8.7.16) Bosch Power Tools

Now, measure length B

of the sec-

ond wall. The individually measured

value displayed in the centre meas-

ured-value line a is added to the

length B

. The sum of both lengths

(“sum”, displayed in the bottom

measured-value line a) is multiplied

with the stored height A. The total

surface value is displayed in the result line c.

In this manner, you can measure any number of further

lengths B

, which are automatically added and multiplied with

height 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.

For a new wall surface measurement with new room height A,

press button 16 three times.

Mark-out Mode (see figure M)

Mark-out mode is used for marking off a fixed length (mark-

out value), which can either be measured or entered. It is

helpful for, e.g., marking partition spaces for drywalls.

To activate the mark-out mode, press the function-mode but-

ton 3 until the mark-out mode indication appears on the

display.

The mark-out value can be adjusted as follows:

– To enter a known value, press the plus button 6 or the mi-

nus button 12 until the desired value is displayed in the up-

per measured-value line a. When pressing and holding the

plus button 6 or minus button 12, the values will continu-

ously skip through. The laser is not activated yet.

– For measuring the mark-out value, briefly press the meas-

uring button 7 once for sighting and once more for measur-

ing. Afterwards, the laser beam remains switched on.

– The measured or entered mark-out value can be corrected

by pressing the plus button 6 or the minus button 12.

After determining the mark-out value, press and hold the

measuring button 7 to begin the measurement.

Now, move the measuring tool in the desired direction for

marking out. The current measuring value of the complete

measured distance is continuously displayed in the result line

c. The selected mark-out value continues to be displayed in

the upper measured-value line a.

The factor (“x”) how often the mark-out value is contained in

the total measuring distance is displayed in the centre meas-

ured-value line, and the difference (“dif”) between an inte-

gral multiple of the mark-out value and the total distance is

displayed in the bottom measured-value line a.

When the total measuring distance is somewhat less than an

integral multiple, then a negative difference and the next high-

er multiple of the mark-out value are displayed.

Move the measuring tool until the desired multiple of the

mark-out value is displayed in the centre measured-value line

a and the difference in the bottom measured-value line is a

“0.0 m”. Then mark off the reference point of the measure-

ment.

Examples:

a) Positive difference:

7.4m=(12x0.6m)+0.2m

The mark-out value 0.6 m is con-

tained 12x in a total distance of

7.4 m. Additionally, the total distance

contains a rest of 0.2 m. Reduce the

distance between the measuring tool

and the starting point by 0.2 m differ-

ence, and then mark off the length.

b) Negative difference:

7.0 m = (12 x 0.6 m) – 0.2 m

For a total distance of 7.0 m, 0.2 m

are missing for the mark-out value

0.6 m to be contained 12x. Increase

the distance between the measuring

tool and the starting point by 0.2 m

difference, and then mark off the

length.

Briefly pressing measuring button 7 ends the mark-out mode.

Pressing and holding the measuring button 7 restarts the

mark-out mode anew (with the same mark-out value).

The mark-out mode automatically switches off after 5 min.

For prior exiting of the function, press one of the measuring-

mode buttons.

List of the last Measuring Values

The measuring tool stores the last 30 measuring values and

their calculations, and displays them in reverse order (last

measured value first).

To recall the stored measurements,

press button 15. The result of the last

measurement is indicated on the dis-

play, along with the indicator for the

measured-value list d as well as a

counter for the numbering of the dis-

played measurements.

When no further measurements are stored after pressing but-

ton 15 again, the measuring tool switches back to the last

measuring function. To exit the measured-value list, press

one of the measuring-mode buttons.

To delete the currently displayed measured-value list entry,

briefly press button 16. To delete the complete measured-

value list, press and hold the button for the measured-value

list 15 and at the same time briefly press button 16.

Deleting Measured Values

Briefly pressing button 16 deletes the last individual measur-

ing value determined in all measuring functions. Briefly press-

ing the button repeatedly deletes the individual measured val-

ues in reverse order.

In wall surface measurement mode, briefly pressing button

16 the first time deletes the last individually measured value;

pressing the button a second time deletes all lengths B

, and

pressing the button a third time deletes all room heights A.

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Bosch Power Tools 1 609 92A 1YW | (8.7.16)

Adding Measured Values

To add measured values, firstly carry out any measurement or

select an entry from the measured-value list. Then press the

plus button 6. For confirmation, “+” appears on the display.

Then carry out a second measurement or select another entry

from the measured-value list.

To call up the sum of both measure-

ments, press the result button 5. The

calculation is indicated in the meas-

ured-value lines a, and the sum in the

result line c.

After calculation of the sum, further

measured values or measured-value

list entries can be added to this result when pressing the plus

button 6 prior to each measurement. Pressing the result but-

ton 5 ends the addition.

Notes on the addition:

– Mixed length, area and volume values cannot be added to-

gether. For example, when a length and area value are add-

ed, “ERROR” briefly appears on the display after pressing

the result button 5. Afterwards, the measuring tool switch-

es 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 c. The addition of individual measured values from

the measured-value lines a is not possible.

– For time-delayed length measurements and when in mark-

out mode, additions are not possible; when changing to

these modes, begun additions are interrupted.

Subtracting Measured Values

To subtract measuring values, press

minus button 12; For confirmation,

“–” is indicated on the display. The

further procedure is analog to

“Adding Measured Values”.

Working Advice

General Information

The reception lens 26 and the laser beam outlet 27 must not

be covered when taking a measurement.

The measuring tool must not be moved while taking a meas-

urement (except for continuous measurements, mini-

mum/maximum measurements and when in mark-out mode).

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 31 (ac-

cessory) and the laser target plate 32 (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 32 (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.

Measuring with the Positioning Pin

(see figures B, C, F and G)

The positioning pin 18 is suitable for measuring out of corners

(diagonal within a space) or from hard to reach areas, such as

from roller-shutter rails.

Press on the positioning pin latch 1 to fold it in or out, or

change its position.

For measurements starting from outer corners, fold the posi-

tioning pin aside; for measurements from the rear edge of the

positioning pin on, fold it out to the rear.

For measurements with the positioning pin, adjust the refer-

ence plane accordingly by pressing button 8 (for measure-

ments with the positioning pin aside, set to measuring from

the rear edge of the measuring tool).

Aligning with the Spirit Level

The spirit level 14 allows for simple levelling of the measuring

tool. This allows for easier sighting of target surfaces, espe-

cially over longer distances.

In combination with the laser beam, the spirit level 14 is not

suitable for levelling.

Sighting with the Optical Sight (GLM 250 VF)

(see figure N)

The sighting line through the optical sight and the laser beam

run parallel to each other. This allows for precise sighting over

long distances, when the laser dot is no longer visible with the

naked eye.

For sighting, view through the viewfinder of the optical sight

10. Take care that the optical sight window 25 is not obstruct-

ed and clean.

Note: For close vicinities, the actual and the displayed target

point are not identical.

Sighting with the Alingment Aid (see figure O)

The alignment aid 24 supports sighting over larger distances.

For this, view alongside the alignment aid on the side of the

measuring tool. The laser beam runs parallel to this sighting

line.

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 21 onto

the quick-change plate of the tripod 30 or a commercially

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