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values of CH1 and CH2 on the front panel, including the value of X, Y, R,
θ
of the test signal. The display interface of
SE1201 is shown in Fig.6.
SE1201 can display the value of CH1 and CH2 through bars in addition to numbers. To discover the changes of data, you
can observe the data in the time region.
Fig.6 [Disp] Submenu
X, Y and R Output Offset and Expand
The SE1201 has the ability to offset the X, Y and R outputs, which is useful when measuring deviations in the signal
around some nominal value. The output can be offset to zero by setting the offset. Then changes in the output can be read
directly from the display or output voltages. The offset is specified as a percentage of full scale. Offsets can be set up to
100% of full scale. When the sensitivity is changed, the percentage does not change.
The X, Y and R outputs can be expanded. It's realized by multiplying the output with an expansion factor. Thus, a signal
which is only 10% of full scale can be expanded to provide 10 V rather than 1 V. The general use for expansion is to
increase the measurement resolution around some value which is not zero.
When the output does not exceed the full scale, the SE1201 can expand the output by multiplying with the expansion
factor from 1 to 256. The output with offset and expand is:
)
(
10
)
(
V
Expand
Offset
Sents
Signal
Output
Where <Offset> can be set up to
±
100% by the digital keyboard and the minimal step is 0.01%. <Expand> can be set
from +1 to +256 by the digital keyboard and the minimal step is 1. Related display interface is shown in Fig.7.
For example, there is:
)
(
6
)
(
10
2
)
2
.
0
1
1
.
0
(
V
V
mV
mV
Output