User's Guide _______________________________________________________________________
12 ___________________________________________________________________ M211107EN-C
Documentation Conventions
Throughout the manual, important safety considerations are highlighted
as follows:
WARNING
Warning alerts you to a serious hazard. If you do not read and follow
instructions very carefully at this point, there is a risk of injury or even
death.
CAUTION
Caution warns you of a potential hazard. If you do
not read and follow
instructions carefully at this point, the product could be damaged or
important data could be lost.
NOTE
Note highlights important information on using the product.
Product-Related Safety Precautions
The following safety precautions must be observed during all phases of
installation work and repair of this instrument or the equipment. Failure
to comply with these precautions or with specific warnings elsewhere in
this manual violates safety standards of design, manufacture, and
intended use of the instrument or equipment. Vaisala Oyj and its
subsidiaries assume no liability for the consequences of customer's
failure to comply with these requirements.
WARNING
To minimize the electrical shock hazard, the Present Weather Sensor
chassis mu
st be connected to a good electrical earth. The instrument is
-conductor AC (mains) power cable. Be sure that
the earth wire of the cable is connected to an electrical ground.
WARNING
There is also a grounding plug at the bottom of the interface unit's
enclosure of the Visibility Sensor. Good grounding with a 16 mm
2
cable
must be provided. Besides improving safety, this protects the Present
Weather Sensor against lightning induced voltages.
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