Chapter 1 _________________________________________________________ General Information
VAISALA ________________________________________________________________________ 13
WARNING
To prevent operator injury or dama
ge to the Visibility Sensor, verify that
line voltage setting is correct before
connecting 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 fl
ammable gases or
fumes. Operation of any electrical instrument in such an environment
constitutes 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
replacement or internal adjustments must be made by qualified
maintenance personnel. Do not replace components with the power cable
connected. Under certain conditions, dan
gerous voltages may exist even
with the power cable disconnected. To avoid injuries disconnect the
power and discharge all circuits before touching them.
CAUTION
The component boards including CMOS microchips should be
transported and stored in conductiv
e 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 modify
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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