Chapter 1 _________________________________________________________ General Information
VAISALA ________________________________________________________________________ 11
WARNING
To prevent operator injury or damage to the Visibility Sensor, verify that
the
line voltage setting is correct before con
necting the line power. Also
ensure that the line power outlet is provided with a protective ground
contact.
WARNING
Do not operate the equipment in the presence of flammable gases or
fumes. Operation of any electrical instrument in such an environment
c
onstitutes a definite safety hazard.
WARNING
Do not attempt internal service or adjustment unless another person,
capable of rendering first aid and resuscitation, is present.
WARNING
Operating personnel must not remove instrument covers. Component
rep
lacement or internal adjustments must be made by qualified
maintenance personnel. Do not replace components with the power cable
connected. Under certain conditions, dangerous voltages may exist even
with the power cable disconnected. To avoid injuries dis
connect the
power and discharge all circuits before touching them.
CAUTION
The component boards including CMOS microchips should be
transported and stored in conductive packages. Although new CMOS
devices are protected against overvoltage damages caused
by static
electric discharge of the operator, careful handling is recommended: The
operator should be properly grounded. Unnecessary handling of
component boards should be avoided.
CAUTION
Because of the danger of introducing additional hazards, do not m
odify
or substitute parts in the instrument. Contact Vaisala or its authorized
representative for repairs to ensure that safety features are maintained.
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