NF FRA5097, Instruction Manual

Page: 128 / 192

5.2 Operation method
FRA5097 5-6
5.2.2 Shunt resistance current-voltage conversion coefficient setting
Use the menu [INPUT] [WEIGHTING FACTOR] to set current-voltage conversion coefficient.
Setting range is 0 to 1.0E+6.
Voltage input is CH1. If connecting a preamplifier with a gain of 100, set the CH1 weighting
factor to 0.01 (inverse of 100).
Current input is CH2. If the CH2 shunt resistance is 100 m
Ω , set the CH2 weighting factor to
10 (inverse of 100 m).
Set invert on to invert the phase (+180
°
). This can be effective for inverting voltage and current
phase when measuring impedance.
Fig. 5-1 Phase invert connection
INVERT:OFF
CH1(V)
DUT
SHUNT
CH2(I)
+
+
-
-
電圧と電流の
入力グランド共通
INVERT:ON
CH1(V)
DUT
SHUNT
CH2(I)
+
-
-
+
Common ground for voltage
and current inputs