User Manual

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19.2 Analog Inputs
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Es ：Signal voltage
Rs ：Signal source resistanc
e
Rin ：Input resistance
Rin
Rs+Rin
［V］
Measurement error＝Es 1-
R
s
Ri
n
E
s
1
9.2 Analog Inputs
Measurement Errors Caused by Signal Source Internal Resistance
・If the signal source impedance is higher than the input impedance of the
unit, a measurement error will occur.
・The input impedance of the 8936 ANALOG UNIT is 1 MΩ. If the signal
source impedance is 1 kΩ, an error of about 0.1% will occur.