HP 6826A Service Manual

2-17 INPUT POWER REQUIREMENTS
2-18 Models 6826A and 6827A may be operated contin¬
uously from either a nominal 120 volt or 240 volt, 48-63
Hz power source. A two-position selector switch { | ) loca¬
ted within the a-c power module on the rear panel selects
the power source. Before connecting the instrument to the
power source, check that the selector switch setting matches
the nominal line voltage of the source. If required, move
the switch to the other position. Note that the power cable
must be removed, the plastic door on the power module
must be moved aside, the fuse extractor must be pulled out¬
ward and the fuse must be removed in order to gain access
to the selector switch.
2-19 When the instrument leaves the factory, the proper
fuse is installed for 115 volt operation. An envelope con¬
taining a fuse for 230 volt operation is attached to the instru¬
ment. Make sure that the correct fuse is installed if the
position of the slide switch is changed (2A for 115 volt op¬
eration, and 1A for 230 volt operation).
2-20 POWER CABLE
2-21 To protect operating personnel, the National Elec¬
trical Manufacturers' Association (NEMA) recommends that
the instrument panel and cabinet be grounded. This instru¬
ment is equipped with a three conductor power cable. The
third conductor is the ground conductor and when the cable
is plugged into an appropriate receptacle, the instrument is
grounded. The offset pin on the power cable's three-prong
connector is the ground connection.
2-22 To preserve the protection feature when operating
the instrument from a two-contact outlet, use a three-prong
to two-prong adapter and connect the green lead on the
adapter to ground.
2-2

HP 6826A Specifications

General

Brand	HP
Model	6826A
Category	Power Supply
Language	English