General Safety Considerations; Safety Earth Ground; Before Applying Power - Keysight Technologies N5244/5B Service Manual

Safety and Regulatory Information

General Safety Considerations

General Safety Considerations

Safety Earth Ground

This is a Safety Class I product (provided with a protective earthing
ground incorporated in the power cord). The mains plug shall only
be inserted in a socket outlet provided with a protective earth
contact. Any interruption of the protective conductor, inside or
outside of the instrument, will make the instrument dangerous.
Intentional interruption is prohibited.
Use Keysight supplied power cord or one with same or better
electrical rating.
Always use the three-prong AC power cord supplied with this product.
Failure to ensure adequate grounding by not using this cord may cause
product damage.

Before Applying Power

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.
If an instrument handle is damaged, you should replace it
immediately. Damaged handles can break while you are moving or
lifting the instrument and cause personal injury or damage to the
instrument.
Supply voltages which oscillate between the two normal input
ranges of the autoranging line voltage input will damage the power
supply. In rare cases, this damage has become a user safety
concern. If unstable power levels are expected, the analyzer input
power must be buffered by a line conditioner.
This instrument has autoranging line voltage input. Be sure the supply
voltage is within the specified range.
This product is designed for use in Installation Category II and Pollution
Degree 2 per IEC 61010-1:2001 and 664 respectively.
Keysight N5244B/45B Service Guide 1-3