Hitachi V-209, Руководство по эксплуатации

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If the instrument is not used with the power supply turned
on. rotate the I TENsity counterclockwise to reduce the
brightness and also blur the FOCUS.
NOTE
For usual observation, leave the following non-calibrating
function section set to ''CAL" position.
VARIABLE
Rotate in the direction of arrow.
In this case, the VOLTS/DIV is calibrated to
its indicating value.
SWP V AR Leave the knob in depressed state.
In this case, the TIME/DIV is calibrated to
its indicating value.
Align the bright line with the horizontal scale line at the
center of the screen by operating CH J POSIT ION. In some
cases, the bright line may be oblique to the scale slightly by the
effect of earth magnetism. In this case. bring the bright line
until it lies on the horizontal scale line at the center of the
screen by properly adjusting the semi- Gxed variable resistor
TRACE ROTATION on the front panel.
18
GENERAL MEASUREMENT
(I) I n the case of observing a single waveform.
Use CHI or CH2 when not observing the phase difference
between two waveforms or when engaging in a operation
other than X- Y operation. Make the following settings
when using CHI .
MODE Switch of Vertical defection system CHI
MODE Switch of TRIG
AUTO
TRIG SOURCE CHI
Under these settings, almost all the repetitive signals of
about 30 Hz or more applied to CHI can be synchro­
nized and observed by adjusting TRIG LEVEL.
Since
the MODE of horizontal axis is at AUTO position, the
bright line appears even when no signal is present or when
input coupling switch is at GND position. This means
that the measurement of
DC voltage can be measured. The
following switching is needed when observing low fre­
quency signals of about 30 Hz or less.
MODE of TRIG ORM
Synchronization can be effected by operating LEVER knob
under this setting.
When using only CH2, use the instrument after making the
following settings.