Chapter 1 ________________________________________________________ General Information
VAISALA _______________________________________________________________________ 11
The device is equipped with the following label:
Ceilometer CL31 is intended for operation in an area restricted from
public access, and to be pointed vertically or near-vertically. The
following precautions must be followed during the service and
maintenance of the instrument:
WARNING
Never look directly into the Ceilometer Transmitter or Ceilometer
Optics with magnifying optics (such as glasses, binoculars, and
telescopes). Never remove the Ceilometer Transmitter from its
normal position without first switching off both the line and the
battery power and detaching the trasnmitter ribbon cable from the
Ceilometer Engine Board.
When operating, avoid looking at the ceilometer unit from the beam
direction. When tilting the unit, make sure that it is not being viewed
from the beam direction with magnifying optics.
Only trained personnel should perform maintenance functions.
Access to the work area by unauthorized persons during service
operations must be prevented.
ESD Protection
CAUTION
The equipment contains parts and assemblies sensitive to damage by
Electrostatic Discharge (ESD). Use ESD precautionary procedures
when touching, removing or inserting.
Electrostatic Discharge (ESD) can cause immediate or latent damage
to electronic circuits. Vaisala products are adequately protected
against ESD for their intended use. However, it is possible to damage
