GW Instek LCR-8000G Series - Accuracy Definition

APPENDIX
137
Accuracy Definition
|Z|, |Y|
High Impedance
[1]
Ae[%]=±((A+0.0000001*Zx)*Kv*Kt)
Low Impedance
[2]
Ae[%]=±((A+0.1/Zx)*Kv*Kt)
L, C, X, B
High Impedance when D < 0.1
Ae[%] = ± (( A + 0.0000001*Zx ) * Kv * Kt)
High Impedance when D ≥ 0.1
Ae[%] = ± (((A + 0.0000001*Zx ) * Kv*Kt)*
 
2
1 D
)
Low Impedance when D < 0.1
Ae[%] = ± (( A + 0.1/Zx ) * Kv * Kt)
Low Impedance when D ≥ 0.1
Ae[%] = ± ((( A + 0.1/Zx ) * Kv * Kt) *
 
2
1 D
)
R, G
High Impedance when Qx < 0.1
Ae[%] = ± (( A + 0.0000001*Zx ) * Kv * Kt)
High Impedance when Qx ≥ 0.1
Ae[%] = ± (((A + 0.0000001*Zx ) * Kv*Kt)*
 
2
1 Q
)
Low Impedance when Qx < 0.1
Ae[%] = ± (( A + 0.1/Zx ) * Kv * Kt)
Low Impedance when Qx ≥ 0.1
Ae[%] = ± ((( A + 0.1/Zx ) * Kv * Kt) *
 
2
1 Q
)
D
± ( Ae/100) when D ≤ 0.1
± ( (Ae/100) * (1+D
2
)) when D > 0.1
Rdc
The Rdc accuracy is equal to Z's accuracy at the 20Hz
measurement frequency.
Q
± (((Qx
2
*De) / (1±Qx*De)) when (Qx*De)< 1
Ɵ
± ((180*|Z|Ae[%]) / (π/100))
Convention
A
Accuracy taken from the Accuracy chart
Zx
Measured value of unknown component
Kv
Test Voltage factor
Level
Kv
Level
Kv
≥ 1.250
1.2
≥ 0.078
2
≥ 0.625
1
≥ 0.039
2.5
≥ 0.313
1.2
≥ 0.02
5
≥ 0.156
1.5
≥ 0.010
10
Kt
Temperature factor
Temperature
Kt
Temperature
Kt
8-18°C
2
28-35°C
2
18-28°C
1
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