Teledyne LeCroy WaveExpert 100H Operators Manual - Manual (Page 38)

Operator’s Manual
36
WE-OM-E Rev A
Installation (Overvoltage) Category II refers to
local distribution level, which is applicable to
equipment connected to the mains supply (AC
power source).
Installation (Overvoltage) Category I refers to
signal level, which is applicable to equipment
measuring terminals that are connected to
source circuits in which measures are taken to
limit transient voltages to an appropriately low
level.
Pollution Degree 2 refers to an operating
environment where normally only dry
non-conductive pollution occurs. Occasionally a
temporary conductivity caused by condensation
must be expected.
Protection Class 1 refers to a grounded
equipment, in which protection against electric
shock is achieved by Basic Insulation and by
means of a connection to the protective ground
conductor in the building wiring.
Note
The design of the instrument has been verified to conform to
EN 61010-1 safety standard per the following limits:
Installation (Overvoltage) Categories II (Mains Supply
Connector) & I (Measuring Terminals)
Pollution Degree 2
Protection Class I
Cooling
The scope relies on forced air cooling with
internal fans and ventilation openings. Care
must be taken to avoid restricting the airflow
around the apertures (fan holes) at the sides
and rear of the scope. To ensure adequate
ventilation it is required to leave a 10 cm (4 inch)
minimum gap around the sides and rear of the
scope.
CAUTION
Do not block the ventilation holes located on both
sides and rear of the scope.
The scope also has internal fan control circuitry
that regulates the fan speed based on the
ambient temperature. This is performed
automatically after start-up with no manual
intervention required.
CAUTION
Do not allow any foreign matter to enter the
scope through the ventilation holes, etc.