viii 11713A Operating and Service Manual
General Safety Considerations
WARNING
• This product has been designed and tested in accordance
with IEC Publication 1010, Safety Requirements for
Electronic Measuring Apparatus, and has been supplied In a
safe condition. The Instruction documentation contains
information and warnings which must be followed by the
user to ensure safe operation and to maintain the product In
a safe condition.
• The ON//OFF switch or the detachable power cord is the
instrument disconnecting device. It disconnects the main
circuits from the main supply before other parts of the
instrument. Alternately, an externally installed switch of
circuit breaker, which is readily identifiable and is easily
reached by the operator, may be used as a disconnecting
device.
WARNING
• This product is designed for use in Installation Category and
Pollution Degree 2 per IEC 1010 and 664 respectively.
• Install the instrument according to the enclosure protection
provided. This instrument protects against finger access to
hazardous parts within the enclosure. The Instrument does
not protect against the ingress of water.
• If this product is not used as specified, the protection
provided by the equipment could be impaired. This product
must be used in a normal condition (in which all means for
protection are intact) only.
• When installing the product in a cabinet, the convection into
and out of the product must not be restricted. The ambient
temperature (outside the cabinet) must be less than the
maximum operating temperature of the product by 4
°
C for
every 100 watts dissipated in the cabinet. If the total power
dissipated in the cabinet is greater than 800 wafts forced
convection must be used.
