Safety Considerations
This power supply is a Safety Class I instrument, which means it has a protective earth terminal. This terminal must be connected to earth ground through a power source equipped with a
Hazardous voltage exist within the power supply chassis, at the output terminals, and at the analog programming terminals.
Conventions
•In diagrams, the name of a complementary signal is sometimes shown with a bar above the signal mnemonic. In other diagrams and in the text, complementary signals are shown with an asterisk (*) after the mnemonic (such as PCLR*). A mnemonic with a bar over it or an asterisk after it represents the same signal.
•In this manual, all Agilent 668xA series supplies are referred to as system supplies.
Electrostatic Discharge
The power supply has components that can be damaged by ESD (electrostatic discharge). Failure to observe standard, antistatic practices can result in serious degradation of performance, even when an actual failure does not occur.
When working on the power supply observe all standard, antistatic work practices. These include, but are not limited to:
•working at a
•using a conductive wrist strap, such as Agilent P/N
•grounding all metal equipment at the station to a single common ground.
•connecting
•removing power from the power supply before removing or installing printed circuit boards.
