NF FRA5087 - Operation Method

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