Hitachi V-209, Руководство по эксплуатации

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6
V-209
Grounded line
Other in�trument
Common external
DC power source
<
DANGEROUS CONNECT>
*
Do not apply rever e polarities to EXT
DC IN.
• Do
not mcreasc the bnghtness too much. Your eyes rna) be
steamed and the nuorescent surface of CRT may be burnt.
• Do
not apply an excel;sive voltage.
The maximum volt3ge of each input is as follows.
PUT direct 250V (DC+ peak AC 3t
I
kilt.)
When xI 0 Probe
is
used 250V (DC+peak AC at I
kilt.)
E T TRIG INPUT
250V (DC+peak AC)
EXT BLA Kl G SOV
(DC
+peak AC)
4. CONTROLS AND CONNECTORS
(I) Power supply and
CRT
Operating voltage and fuse
Thts
model can be operated from e11her 3 100 volts or a
:!00 volts nominal line vohage source. The line voltage
select switch on the rear panel, turn the instrument from
one operating range to the other. In addition, this switch
changes the primary connections of the transformer to
allow
selection
of one of two regulating ranges. Use the
following procedure to convert this instrument between
normal line voltage or regulating ranges
a. Disconnect the instrument from the power source.
b. To convert from I 00 volts nominal to :!00 volts nomi­
nal line voltage or vice versa, remove the protector of
the line voltage select switch.
Change the line voltage select switch from I 00 volts to
200 volts and remounting the protector.
c. Before apply the power to the mstrument, check that
the indicating tabs on the rear panel.
Selection of power supply mode
This oscilloscope
can make
operation
by using three kinds of
AC power supply, external DC power supply and A[}209bat­
tery pack.