INSTALLATION
2-6
Voltage selector
The selected voltage is displayed in a window at the top of the connector. The instrument
is normally dispatched with the selector set to 120 V. To select another voltage, insert a
screwdriver into the slot at the top of the molding and twist slightly so that the cover is free to
hinge downwards. Rotate the barrel so that the correct setting is displayed, see Fig. 2-1.
Setting
Voltage range limit
100 V
90 - 115 V
120 V
105 - 132 V
220 V
188 - 242 V
240 V
216 - 265 V
Fuses
The correct fuse rating for each voltage setting is as follows:
100 V to 120 V, TT1.6AL250V (1.6 amp double time lag)
220 V to 240 V, TT1AL250V (1 amp double time lag)
Fuses are cartridge type measuring 20 mm x 5 mm.
➮ ➮
Barrel
Fuse Holders
Hinged Cover
Window
COVER REMOVED
COVER IN PLACE
220Vac
240Vac
240Vac
~
~
~
C0076
Fig. 2-1 AC connector showing voltage selector and fuse holders
GENERAL PURPOSE INTERFACE BUS (GPIB)
The GPIB interface built into the NAV-750C enables the signal generator to be remotely
controlled to form part of an automatic measuring system.
GPIB cable connection
Connection to other equipment which has a 24-way connector to IEEE Standard 488 is
made using the rear panel GPIB socket. For this purpose, the GPIB cable assembly,
available as an optional accessory, (see Chap. 1 ‘Accessories’) may be used.
