Getting Started
370B User Manual 1-3
The LINE VOLTAGE SELECTOR switches (NOMINAL and RANGE, located
on the rear panel) allow selection of the operating line voltage. To select the
correct operating line voltage:
1. Disconnect the 370B from the ac power source before changing the operating
voltage.
2. Select the nominal ac power source voltage with the NOMINAL switch,and
3. Select the operating line voltage with the RANGE switch.
To prevent damage to the instrument ,always check the settings of the
LINE VOLTAGE SELECTOR switches lactate on the rear panel the 370B before
connecting the instrument to the line voltage source.
To verify that the power input fuse is for the nominal sc source voltage se-
lected,perform the following:
1. Use the small straight screwdriver to pry the cap (with the attached fuse
inside)out of the fuse holder.
2. verify proper fuse value:
Nominal voltage 230 V 2 A medium blow
Nominal voltage 115 V 4 A medium blow
3. Install the proper fuse and reinstall the fuse holder cap.
A power cord with the appropriate plug configuration is supplied with each
instrument . The color coding of the power cord conductors appears in Table1–2.
Also, should you require a power cord plug other than that supplied, refer to
Table 1–3. Power Cord Identification.
Table 1-2: Power Cord Color Conductor Identification
Conductor
Color
Alternate
Operating Voltage
Selection and Line Fuse
verification
Power Cord Information
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General