Hilti PLT 400 Manual De Instrucciones página 23

Using and handling the measuring tool
▶ Use the product and accessories only when they are in perfect working order.
▶ Store measuring tools out of reach of children when not in use. Do not allow persons who are not
familiar with the product or these instructions to operate it. Measuring tools are dangerous in the
hands of inexperienced persons.
▶ Measuring tools need care and attention. Check that moving parts operate satisfactorily and do
not jam, and make sure that no parts are broken or damaged in such a way that the measuring
tool might no longer function correctly. Have damaged parts repaired before using the measuring
tool. Many accidents are caused by poorly maintained measuring tools.
▶ Do not under any circumstances modify or tamper with the product. Changes or modifications not
expressly approved by Hilti may restrict the user's authorization to operate the product.
▶ Check the accuracy of the measuring tool before using it for important measurements, and if it
has been dropped or subjected to other mechanical stresses.
▶ Due to the measuring principle employed, the results of measurements can be negatively affected
by certain ambient conditions. These include, for example, the proximity of devices that produce
strong magnetic or electro-magnetic fields, vibrations and temperature changes.
▶ Rapidly changing measuring conditions can falsify the results.
▶ When the product is brought into a warm environment from very cold conditions, or vice-versa,
allow it to become acclimatized before use. Big differences in temperature can lead to incorrect
operation and incorrect results.
▶ When adapters or accessories are used, make sure they are mounted securely.
▶ The measuring tool is designed for the tough conditions of jobsite use, but as with other optical
and electrical products (e.g. binoculars, spectacles, cameras) it must be handled with care.
▶ The specified operating and storage temperatures must be observed.
2.2 Additional safety instructions for laser measuring tools
▶ Laser radiation in excess of Class 2 can be emitted if the product is opened without correct
procedure being followed. Have the product repaired only by Hilti Service.
▶ Secure the area in which you will be taking measurements. While setting up the product, make
sure that you do not direct the laser beam toward yourself or others. Laser beams should be
projected well above or well below eye height.
▶ Keep the laser exit window clean in order to avoid measurement errors.
▶ Check the accuracy of the product before use and several times during use.
▶ Readings taken in the vicinity of reflective objects or surfaces, through panes of glass or similar materials
can falsify the result of measurement.
▶ Mount the product on a suitable holder or bracket or on a tripod, or set it on a smooth, level surface.
▶ Do not work with surveyor's staffs in the vicinity of high-voltage electricity cables.
▶ Make sure that no other laser measuring tool that can influence your measurements is in use in the
vicinity.
▶ Do not permit the laser beam to project beyond the controlled area.
2.3 Laser classification for Class 2 laser products
The device complies with Laser Class 2 in accordance with IEC60825-1/EN60825-1:2014. These products
can be used without further protective measures.
CAUTION
Risk of injury! Do not direct the laser beam toward persons.
▶ Never look directly into the source of the laser beam. In the event of direct eye contact, close your eyes
and move your head out of the path of the laser beam.
2.4 Electromagnetic compatibility
Although the tool complies with the strict requirements of the applicable directives, Hilti cannot exclude the
following possibilities:
• The tool may cause interference to other devices (e.g. aircraft navigation equipment).
• The tool may be negatively affected by powerful electromagnetic radiation, possibly leading to incorrect
operation.
In these cases, or if you are otherwise unsure, confirmatory measurements should be made by other means.
*2325080*
2325080 English 17