NF FRA5087, Instruction Manual

Page: 125 / 194

5.4 Operation method
FRA5087 5-5
5.4 Operation method
5.4.1 Impedance display description
The function displays impedance, resistance, reactance, conductance and susceptance with linear
and logarithmic graphs.
In units setting for the impedance and analysis modes CH1/CH2 or CH2/CH1, axis data R, A and
B have the following meanings.
R: Impedance (CH1/CH2) or admittance (CH2/CH1)
A: Resistance (CH1/CH2) or conductance (CH2/CH1)
B: Reactance (CH1/CH2) or susceptance (CH2/CH1)
When impedance is displayed, CH1 is fixed to voltage input and CH2 fixed to current input.
To allow 0.01 m to 1 k
 shunt resistance to be used for current to voltage conversion,
[WEIGHTING FACTOR] by the menu [Input] setting range is 0 to 1.0E+6 (resolution 5 digits or
0.1E-09).
Table 5-1 indicates graph axis contents, scale and units with respect to units, analyze mode and
display mode settings.
Table 5-1 Graph axis contents
Units setting
Analyze mode
setting
Axis setting Axis contents Scale Units
IMPEDANCE,
GAIN CH1/CH2,
CH2/CH1,
CH1,CH2 logF Frequency Log Hz
F Frequency Linear Hz
 Phase Linear deg
IMPEDANCE CH1/CH2 dBR Impedance Linear dB 
logR Impedance Log 
R Impedance Linear 
logA Resistance Log 
log(-A) - resistance Log 
A Resistance Linear 
logB - reactance Log 
log(-B) - reactance Log 
B Reactance Linear

-B - reactance Linear 
CH2/CH1 dBR Admittance Linear dBS
logR Admittance Log S
R Admittance Linear S
logA Conductance Log S
log(-A) - conductance Log S
A Conductance Linear S
logB - susceptance Log S
log(-B) - susceptance Log S
B Susceptance Linear S
-B - susceptance Linear S