Safety Earth Ground; Before Applying Power - HP 8517B Operating & Service Manual

Safety Earth
Ground

Before Applying Power

This is a Safety Class I product (provided with a protective earthing
terminal). An uninterruptible safety earth ground must be provided from the
main power source to the product input wiring terminals, power cord, or
supplied power cord set. Whenever it is likely that the protection has been
impaired, the product must be made inoperative and secured against any
unintended operation.
Verify that the product is configured to match the available main power
source as described in the input power configuration instructions in this
manual. If this product is to be powered by auto-transformer, make sure the
common terminal is connected to the neutral (grounded) side of the ac power
supply.
viii HP 8517B S-Parameter Test Set Manual