–Align the height of the measuring tool (using the tripod or by underlaying, if required) in such a manner that the centre point of the laser beam is projected exactly against the previously marked point II on wall B.
A |
| B | |
180° | |||
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d 
–Rotate the measuring tool by 180° without changing the height. Allow it to level in and mark the centre point of the laser beam on wall A (point III). Take care that point III is as vertical as possible above or below point I.
–The difference d of both marked points I and III on wall A results in the actual height deviation of the measuring tool alongside the Longitudinal axis.
On the measuring distance of 2 x 65ft =130 ft, the maximum allowable deviation is:
130 ft x ±0.3 mm/m = ±1/2".
Thus, the difference d between points I and III may not exceed 1/2"(max.).
Working Advice
For marking, always use only the centre of the laser point or the laser line. The size of the laser point as well as the width of the laser line change with distance.
Working with the Tripod (Accessory)
A tripod offers a stable,
of the tripod 16 or a commercially available camera tripod. For fastening to a commercially available construction tripod, use the 5/8” tripod mount 6. Tighten the measuring tool with the tripod mounting stud.
Adjust the tripod roughly before switching on the measuring tool.
Fastening with the Universal Holder (Accessory)
With the universal holder 15, you can fasten the measuring tool, e.g., to vertical surfaces, pipes or magnetizable materials. The universal holder is also suitable for use as a ground tripod and makes the height adjustment of the measuring tool easier.
Adjust the universal holder 15 roughly before switching on the measuring tool.
brightness intensification can be seen only when viewing, parallel to the laser beam, onto the measuring plate.
Working with the Laser Target Plate
The laser target plate 13 increases the visibility of the laser beam under unfavourable conditions and at large distances. The reflective part of the laser target plate 13 improves
the visibility of the laser line. Thanks to the transparent part, the laser line is also visible from the back side of the laser target plate.
Laser Viewing Glasses (Accessory)
The laser viewing glasses filter out the ambient light. This makes the red light of the laser appear brighter for the eyes.
Do not use the laser viewing glasses as safety goggles. The laser viewing glasses are used for improved visualisation of the laser beam, but they do not protect against laser radiation.
Do not use the laser viewing glasses as sun glasses or in traffic. The laser viewing glasses do not afford complete UV protection and reduce colour perception.
Working with the Measuring Plate (Accessory) (see figures
With the measuring plate 14, it is possible to project the laser mark onto the floor or the laser height onto a wall.
With the zero field and the scale, the offset or drop to the required height can be measured and projected at another location. This eliminates the necessity of precisely adjusting the measuring tool to the height to be projected.
The measuring plate 14 has a reflective coating that enhances the visibility of the laser beam at greater distances or in intense sunlight. The
Work Examples (see figures C – F)
Applicational examples for the measuring tool can be found on the graphics pages.
Always position the measuring tool close to the surface or edge subject to checking, and allow it to level in prior to each measurement.
Always measure the distances between laser beam or laser line and a surface or edge at two points as far as possible away from each other
(e.g. with the measurement plate 14).
GCL 25 Manual with translations.indd 11 | 4/24/12 8:29 AM |