Tektronix 7A22, Instruction Manual

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example: if a lOX probe is used it will increase the deflec­
tion factor, in the readout display, by a factor of 1 0. Then the
actual deflection factor at the probe tip is displayed (see
Table 2-2).
NOTE
If only one divider probe (or two probes with
equal divider ratios) is connected, the deflection
factor at the probe tip will be displayed; if probes
with different divider ralios are connected (e.g.,
lOX
and
100 X), the
readout will display the de­
flection factor at the tip of the probe with the
larger division ratio (100 X )
•
REV. B, AUG. 1974
Operating Instructions-Type 7A22
TABLE 2-2
Trace Idenlify. With the oscilloscope turned on and a
sweep displayed on the CRT,
check
for approximately 0.2 div
of vertical
movement
of the trace when the
IDENTIFY
pushbutton is depressed. The vertical scale factor readout
associated with the 7A22 will change to the word IDENTIFY.
NOTE
An incorrect CRT readout will occur in the 10V/div
position when using the 100X Readout coded probe
(P6009,
Tektronix Part No. 010-0264-01). When used in
10V/dill setting, reading wili show 1V instead of 1 KV.
2-13
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