Measuring Functions - Bosch GIM 120 Professional Original Instructions Manual

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OBJ_BUCH-2461-002.book Page 14 Thursday, February 25, 2016 2:23 PM
14 | English
Switching the Audio Signal On/Off
The audio signal can be switched on/off with the audio signal
button 7. When the audio signal is switched on, indicator g
appears in the display.
When you switch on the measuring tool, the audio signal is
switched on as standard.
Measured-value Indication and Alignment Aids
For each movement of the measuring tool, the measured value
is updated. After moving the measuring tool to any extent, wait
until the measured value no longer changes before reading the
value.
Depending on the position of the measuring tool, the measured
value and the unit of measure are indicated in the display rotat-
ed by 180°. Thus, the indication can also be read for overhead
work.
The measuring tool uses alignment aids a on the display to
show in which direction it has to be tilted in order to reach the
target value. In standard measurements the target value is the
horizontal or vertical, in the "Hold/Copy" function it is the
stored measuring value.
When the target value is reached, the arrows of the alignment
aids a go out and a continuous audio signal sounds when the
audio signal is switched on.

Measuring Functions

Holding/Copying a Measured Value
Two functions can be controlled with the "Hold/Copy"
button 11:
– Holding ("Hold") of a measured value, even when the meas-
uring tool is moved afterwards (e.g., because the measuring
tool is in a position in which the display cannot be read);
– Copying ("Copy") of a measured value.
"Hold" function:
– Briefly press the "Hold/Copy" button 11. The current
measuring value e is held on the display and stored, and
indicator "H" flashes.
– Press the "Hold/Copy" button 11 again to end the "Hold"
function. The stored value is deleted. Normal measurement
is continued.
"Copy" function:
– Long press the "Hold/Copy" button 11. The current meas-
uring value e is copied and indicator "H" is shown continu-
ously on the display.
– Briefly press the "Hold/Copy" button 11. The stored
measuring value e is shown on the display and indicator "H"
flashes.
– Place the measuring tool in the location to which the meas-
uring value is to be transferred. When doing so, the align-
ment of the measuring tool is irrelevant. The alignment aids
a show which direction the measuring tool has to be moved
in to reach the grade you want to copy. When the stored
grade is reached, an audio signal sounds and the alignment
aids a go out.
– Briefly press the "Hold/Copy" button 11 again to return to
normal measurement. Indicator "H" is shown continuously
on the display.
– Long press the "Hold/Copy" button 11 to store a new value.
– To delete a "Hold" value, briefly press the "ON/OFF" button.
Checking the Measuring Accuracy (see figure B)
Check the accuracy of the measuring tool each time before us-
ing, after extreme temperature changes as well as after heavy
jolts or impact.
Before measuring angles <45°, the accuracy check should
take place on a level and roughly horizontal surface; before
measuring angles >45°, on a level and roughly vertical surface.
Switch the measuring tool on and place it on the horizontal or
vertical surface.
Wait for 10 s and note down the measured value.
Rotate the measuring tool (as shown in the figure) by 180°
around its vertical axis. Wait again for 10 s and note down the
second measured value.
 Calibrate the measuring tool only when the difference
between both reading values is greater than 0.1°.
Calibrate the measuring tool in the position (vertical or hori-
zontal), in which the difference of the measured values has
been determined.
1 609 92A 25F | (25.2.16)
Bosch Power Tools

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