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General Information
Preparation for Use
Safety
Before connecting the oscilloscope to a power source, read entirely both this
section and the Safety Summary at the front of this manual. Be sure you have the
training required to safely connect the instrument inputs to the signals you will
be
measuring. Refer to the Safety Summary for power source, grounding, and other
safety considerations pertaining to the use of the instrument.
This instrument may be damaged if operated with the LINE VOLTAGE
SELECTOR switch set for the wrong applied ac input-source voltage or if
the wrong line fuse is installed.
Line Voltage Selection
The oscilloscope operates from either a 115-V or a 230-V nominal ac power-line
with any frequency from 48 Hz to 440 Hz. Before connecting the power cord to a
power source, verify that the LINE VOLT AGE SELECTOR switch, located on the
rear panel (see Figure 1-1 ), is set correctly (see Table 1-1) and that the line fuse is
correct. To convert the instrument for operation on the other line-voltage range,
move the LINE VOLTAGE SELECTOR switch to the correct nominal ac source-
voltage setting. The detachable power cord may have to
be replaced to match the
particular power source.
Line Fuse
1-2
To verify the instrument power-input fuse rating, do the following steps:
1 .
Press the fuse-holder cap and release it with a slight counterclockwise
rotation. Pull the cap (with the attached fuse inside) out of the fuse holder.
2.
Verify that the fuse is of the type listed on the back of the instrument.
Then install the proper fuse and reinstall the proper fuse-holder cap. The
two types of fuses listed are not directly interchangeable; they require
different types of fuse caps. Included in the accessory pouch is a 5x20 mm
fuse holder cap for use with 1.6 A, 250 V, 5x20 mm (IEC 127) fuses.
2467 Operators
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