User guide

Safety and Warnings
iv Trimble M3 Total Station User Guide
.2 Warnings and Cautions
The following conventions are used to indicate safety instructions:
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WARNING – Warnings alert you to situations that could cause death or serious injury.
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CAUTION – Cautions alert you to situations that could cause injury or property damage.
Always read and follow the instructions carefully.
2.1 Warnings
Before using the instrument, read the following warnings and follow the instructions
that they provide:
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WARNING – Never look at the sun through the telescope. If you do, you may damage or
lose your eyesight.
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WARNING – The Trimble M3 total station is not designed to be explosion-proof. Do not
use the instrument in coal mines, in areas contaminated with coal dust, or near other
flammable substances.
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WARNING – The Trimble M3 total station is a Class 1 laser instrument. The laser beam is
hazardous to the eyes and the body. Do not sight the instrument on the face or body of a
person. If you suspect an injury caused by exposure to the laser beam, seek medical advice
immediately. If the instrument housing is open and the instrument is turned on, the laser
emits a beam stronger than the Class 1 safety level.
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WARNING – Never disassemble, modify, or repair the instrument yourself. If you do, you
may receive electric shocks or burns, or the instrument may catch fire.
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WARNING – Use only the specified battery charger (part number Q-75U/E) to charge the
battery pack (part number BC-65). Using other chargers, such as a charger with part
number Q-7U/E or Q-7C, may cause the battery pack to catch fire or rupture. (The BC-65
cannot be charged by the Q-7U/E or Q-7C.)
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WARNING – Do not cover the battery charger while the battery pack is being recharged.
The charger must be able to dissipate heat adequately. Coverings such as blankets or
clothing can cause the charger to overheat.