Hitachi V-212 Operation Manual page 17

Sweep is magnified 10 times by pulling out knob of
POSITION. In this case the sweep time is 1/10 of the
value indicated by TIME/DIV. Bring the position of the
waveform desired to be magnified observed to the center
of the scale by operating ^ POSITION of the horizon
tal axis. Next, switch xlO MAG switch to PULL (pulled
out state). Then the waveform placed at the center is
magnified in right and left directions. The sweep time
in this case is 10 times the sweep speed obtained by
TIME/DIV, in other words, the reading is I/IO of the
sweep time indicated.
(4) Synchronization system
(||) SOURCE select switch (INT-LINE-EXT)
This switch is used to select the triggering signal source.
INT The input signal applied to CHI or CH2 becomes
the triggering signal.
LINE This setting is used when observing a signal with
power supply hne frequency.
EXT External triggering signal applied to TRIG IN
PUT becomes the triggering signal.
This setting is used when triggering with a special
Independently of the vertical axis signal.
EXT
X
This select X input when the instrument is
used as a X-Y oscilloscope. (V-211 only)
Magnified waveform
INT TRIG select switch (¥-212 only)
This switch is used to select the internal triggering signal
source.
CHI
CH2
VERT
MODE
The input signal applied to CHI becomes the
triggering signal.
The input signal applied to CH2 becomes the
triggering signal.
For observing two waveforms, the sync signal
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