HP 3457A Service Manual page 34

Installation
Fuse for 95 to 132Vac Operation:
0.2 AT HP Part Number 2110-0235
Fuse Cap for 95 to 132Vac operation:
Gray HP Part Number 2110-0565
~ LINE ~LINE
48-66 Hz. 30 VA MAX 48-66 Hz. 30 VA MAX
100Vac Line Selection 120Vac Line Selection
Fuse for 209 to 264Vac operation:
.08 AT HP Part Number 2110-0719
Fuse Cap for 209 to 264Vac operation:
Black HP Part Number 2110-0567
~LINE ~LINE
48-66 Hz. 30 VA MAX
48-66 Hz.
30 VA MAX
220Vac Line Selection 240vVac Line Selection
Figure 2-2, Line Voltage and Fuse Selection
2-5. PREPARATION FOR USE
2-6. Power Requirements
2-7. The HP 3457A requires a power source of 100, 120, 220, or 240 Vac (+5%, -10%), 48Hz to 66Hz single
phase. Power consumption is less than 30VA.
Before connecting power to the HP 3457A, make certain that the line selection
switches (located on the rear panel) have heen set to accept the available power
source and that the proper fuse is installed.
2-8. Line Voltage Selection
2-9, The line voltage selection switches are located on the rear panel below the power connector and fuse.
Figure 2-2 shows the appropriate switch positions and fuse requirements for the various power line
voltages.
2-10. Power Cords
2-11, This instrument is equipped with a three-wire power cable. This cable, when connected to an ap-
propriate ac power receptacle, grounds the metal parts of the cabinet. The type of plug supplied with the
power cable depends upon the country of destination. Figure 2-3 illustrates the power plugs available. The
HP Part Number listed below each figure is the part number for the complete power cord assembly. If the
appropriate power cord is not supplied with your instrument, notify your nearest HP Sales and Service
Office and a replacement cable will be supplied.
3457A