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Operation precautions
* Check the line voltage.
The operating voltage range of this oscilloscope is as shown
below. Check the hne voltage without fail before turning
on the power switch.
Rating
Line Voltage (50/60Hz)
ACIOOV
AC 90V- llOV
AC120V
AC 108V- 132 V
AC220V
AC198V-242V
AC240V
AC216V - 264V
Nominal volts ±5% at 400Hz.
In the case of normal shipment, the voltage selector will
be set convenient for user. When it is intended to use the
oscilloscope on another voltage rating, voltage selector
can be turned. (Rated voltages are indicated on the rear
panel of the oscilloscope.)
* Use only specified fuses.
In order to protect the circuit against overcurrent, a fuse of
2A (for ACIOOV or AC120V) or lA (for AC220V or AC
240V) is used on the primary side of power supply. When
this fuse is blows out, check thoroughly the cause, repair
any faulty point present, and then replace with a specified
fuse. Do not try to use the fuse other than the specified
ones. Otherwise, fault may be caused or danger may be
invited.
(Particularly, do not use a fuse different from the specified
one in current capacity and in length.) The standards of
the fuses are as follows.
Dimensions
(Diameter x length)mm
Type number
2A
6.350x31.8
MF61NM250V 2A AC
lA
6.350x 31.8
MF61NM250V lA AC
* Do not increase the brightness too much.
Do not increase the brightness of the spot and trace too
much. Your eyes may be strained and the fluorescent sur
face of CRT may be burnt.
* Do not apply an excessive voltage.
The input withstand voltage of each input connector and
probe input is as follows. Never apply a voltage higher than
specified.
INPUT direct,
300V (DC + AC peak at 1 kHz)
When probe is used
400V (DC + AC peak at 1 kHz)
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