HP 8153A - Page 203

Installation
This appendix provides installation instructions for the HP 8153A. It also
includes information about initial inspection and damage claims, preparation for
use, packaging, storage, and shipment.
Safety Considerations
The Model HP 8153A is a Class 1 instrument (that is, an instrument with an
exposed metal chassis directly connected to earth via the power supply cable).
The symbol used to show a protective earth terminal in the instrument is .
Before operation, you should review the instrument and manual, including the
red safety page, for safety markings and instructions. You must follow these to
ensure safe operation and to maintain the instrument in safe condition.
Some HP 8153A circuits are powered whenever the instrument is connected to
the AC power source. To disconnect from the line power, disconnect the power
cord either at the rear power-inlet or at the AC line-power source (receptacle).
One of these must always be accessible. If the instrument is in a cabinet, it must
be disconnected from the line power by the system's line-power switch.