The power cord supplied with the 2281S contains a separate
protective earth (safety ground) wire for use with grounded outlets.
When proper connections are made, the instrument chassis is
connected to power-line ground through the ground wire in the
power cord. In addition, a redundant protective earth connection is
provided through a screw on the rear panel. This terminal should be
connected to a known protective earth. In the event of a failure, not
using a properly grounded protective earth and grounded outlet may
result in personal injury or death due to electric shock.
Do not replace detachable mains supply cords with inadequately
rated cords. Failure to use properly rated cords may result in
personal injury or death due to electric shock.
To connect line power:
1.
Make sure the front panel power switch is in the off (0)
position.
2.
Connect the socket of the supplied power cord to the power
module on the rear panel.
Operating the instrument on an incorrect line voltage may cause
damage to the instrument, possibly voiding the warranty.
3.
Connect the plug of the power cord to a grounded AC outlet.
4.
Turn on the instrument by pressing the front panel
POWER
switch to the on (|) position. The instrument powers up.
