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71
Fig.59 The Monitoring Bar of Main Interface
Note that if the input of the preamplifier is overload, it shows <Overload:
INPUT
NONE>. If the output is overload,
it shows <Overload: NONE
GAIN
>. If both the input and the output are overload at the same time, it shows
<Overload:
INPUT GAIN
>.
How to Adjust <Sensitivity>
When the input of the preamplifier is overload, you should decrease the output amplitude of the function signal
generator. If the output is overload, you should increase the sensitivity of the SE1201. The default sensitivity is
<100 mV>. So in this case it will not overload. If you need to adjust the sensitivity, you should take the steps
below.
1. Press [GAIN/TC] in front panel and then enter the submenu shown in Fig.60.
Press [Soft Key 1] to choose <Sensitivity> and then it will be highlighted. Spin the knob to change the value of
sensitivity so that there is no overload and the full scale is the maximum. In this case, we set the parameters as
Fig.60. Then SE1201 measures the sine signal and the result is R=80.08 mV,
θ
=0.18
°
.
