Ryobi LDM-60, Owner'S Operating Manual

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6
INDIRECT LENGTH MEASUREMENT
STORING MEASURED VALUES
DELETING MEMORY
INDIRECT MEASUREMENT: PYTHAGORAS 2 POINTS
(Fig. 7-8)
INDIRECT MEASUREMENT: PYTHAGORAS 3 POINTS
(Fig. 9)
After the measurements, the date is stored automatically. It can
store 19 measurements.
User can press the memory storage read button (3) to recall
measurements.
Press add button ”+” or subtraction button ”-” to turn up and down.
To delete the memory contents, firstly indicate by pressing the
memory storage read button, and then press off and memory
delete button.
Even if the measuring tool is switched off, the value in the memory
is retained.
Long press the add button ”+” to select the measurement unit
among m, ft, in, ft+/in.
The use of a tripod is particularly helpful for greater distances. The
laser distance measure can be screwed onto a commercially
available tripod using the 1/4” thread on the bottom side of the
housing.
1. Mount the tool to the tripod.
2. Set the measuring reference to the thread.
3. Start to take measurements.
Pay attention that the reference point of the measurement (e.g.,
the rear edge of the measuring tool) is at the exact same location
for both measurements.
After completing the second measurement, the height of the
building is calculated automatically. The last individual measured
value is indicated at the middle line in the display, while the final
result is indicated at the top.
1. After switching on, press function button four times, the
appears on display.
2. Press measuring/on button to activate laser and aim at the point
which is to be measured
3. Press measuring/on button again to take the first measurement,
and again to take the second and third measurement.
4. The height of building, second and third distance value will be
seen on display.
CONTINUOUS/TRACKING MEASUREMENT (Fig. 10-11)
For continuous/tracking measurements, the measuring tool can be
moved relative to the target, whereby the measuring value is
updated approx. every 0.4 seconds. In this manner, as an
example, you can move a certain distance away from a wall, while
the actual distance can always be read.
To start continuous measurements, push measuring/on button for
a few second.
Continuous measurement automatically switches off after 100
times measurements (about 30 seconds).
The last measured value remains indicated on the display.
To stop continuous measurement, press off and memory delete
button (7). Pres it one more time to exit and return to the single
length measurement mode.
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 from an exact right angle (Pythagorean
Theorem)
1. After switching on, press the function button three times, the
symbol appears.
2. Press measuring/on button to activate laser and aim at the point
which is to be measured.
3. Press measuring/on button again to take the first measurement,
and again to take the second measurement.
4. The height of building (third side of triangle), first and second
distance value will be seen on display.
MEMORY FUNCTION (Fig. 12)
MEASUREMENT UNIT SELECTION
Long press the reference point selection button to switch on or off
the display backlight.
User can trigger the function when it is in dark situation. The value
is clearly visible on the display.
DISPLAY BACKLIT
WORKING WITH TRIPOD (available separately)
WORKING ADVICE
The reception lens 12 and the laser beam outlet 11 must not be
covered when taking a measurement.
The measuring tool must not be moved while taking a measure-
ment (with the exception of the continuous measurement function).
Therefore, place the measuring tool, as far as this is possible,
against or on the measuring points.
Measurement takes place at the centre 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 (accessory) and the laser
target plate (accessory), or shade off the target surface.
If required, use the laser target plate (accessory) on these
surfaces.
Also, air layers with varying temperatures or indirectly received
reflections can affect the measured value.
GENERAL INFORMATION
INFLUENCE EFFECTS ON THE MEASURING RANGE
Due to physical effects, faulty measurements cannot be excluded
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).
INFLUENCE EFFECTS ON THE MEASURING RESULT