Stonex R20 – User Manual 9
2.7. Other saftety items
• It is not permitted to use the instrument in locations where measurement operations are prohibited by
law or other regulations.
• Pay attention to the safety of the surrounding environment when using the instrument to avoid accidents
or equipment damage caused by traffic accidents, falling objects, collapsing buildings, ground
subsidence, mechanical equipment collisions and other accidents.
2.8. General Notes
Before using the instrument, be sure to check and confirm that the instrument and accessories are complete and
that all functions work properly.
• Do not aim the instrument at the sun.
• A qualified tripod is required to set up the instrument.
• The use of a qualified tribrach is required for the instrument. Fasten the instrument with its tribrach
correctly.
• When measuring, the instrument and tribrach must be properly and solidly fixed on the top plate of
tripod with the fixing screw. The clamping screws should be tightened after the adjustment of the tripod
legs.
• Avoid vibration of the instrument and tripod during measurement.
• When handling instruments, avoid bumping and dropping as much as possible.
• When lifting the instrument, always grip the handle properly and make sure it is securely attached to the
instrument.
• Do not leave the apparatus in a hot environment for too long, paying particular attention to
environments where the temperature may be too high, such as in a car in hot weather.
• Sudden changes in the temperature of the instrument will affect the measurement accuracy. If the
ambient temperature changes too much, the instrument should be left for a period to adapt to the
ambient temperature before starting measurements.
• Avoid direct sunlight on the instrument during measurement, and it is recommended to use umbrellas or
other shelters.
• Check the battery level to ensure sufficient operating time.
• It is recommended that you do not remove the battery while the instrument is on. Please remove and
install the battery after the instrument is turned off.
• Any obstructions in the path of view between the instrument and the target to be measured during
distance measurement operations may lead to erroneous measurements.
• Necessary self- check should be performed after collision, collapse, etc., as well as after long-term
storage and long-distance transportation of the instrument.
2.9. Disclaimer
• The user of this product should have sufficient measuring skills and use it in accordance with the user
manual.
• The user should carry out periodic self-check of the instrument's performance.
• The manufacturer and its agents cannot be held responsible for the consequences and loss of profit
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