NF ZM2371 - Page 240

9.1 Specifications
9-5 ZM2371/ZM2372
 Kz: Residual impedance coefficient
Frequency
Kz [%]
DC (0Hz), Frequency≦120Hz
(0.003 + Kc) / Zx[]
120Hz < Frequency≦1kHz
(0.005 + Kc) / Zx[]
1kHz < Frequency≦10kHz
(0.005 + 0.002 × Frequency [kHz]+ Kc) / Zx[]
10kHz < Frequency≦100kHz
(0.0025 × Frequency [kHz] + Kc) / Zx[]
Cable length coefficient Kc = 0.001  Fequency [kHz]  (Cable length [m])
2
Use the next table when all of two conditions listed below are satisfied. In this case,
unless Az exceeds 10 [%], the measurement accuracy is not a supplementary value
but a guaranteed value.
Measurement range Zx is 10.
Impedance magnitude|Z| is less than 0.45.
Frequency
Kz [%]
DC (0Hz), Frequency≦10kHz
(0.05 + Kc) / Zx[]
10kHz < Frequency≦100kHz
(0.1 + 0.002 × Frequency [kHz] + Kc) / Zx[]
 Ky: Residual admittance coefficient
Frequency
Ky [%]
DC, Frequency≦120Hz
Zx[] / ( 3 × 10
8
)
120Hz < Frequency≦100kHz
Zx[] × Frequency [kHz] / ( 3 × 10
7
)
 K
T
: Temperature-dependent coefficient
Ambient temperature (T
°C
)
KT
0 to +18
1 + 0.1 × (18 - T)
+18 to +28
1
+28 to +40
1 + 0.1 × (T - 28)
 K
B
: DC bias coefficient
Internal DC
bias
Measurement
range Zr
KB [%]
Frequency
≦1kHz
1kHz <
Frequency
≦10kHz
Frequency
>10kHz
Disabled
All ranges
0
0
0
Enabled
(*1)
1M
0.005
0.02
0.02
100k
0.002
0.003
0.01
100 to 10k
0.001
0.002
0.01
10
0.01
0.01
0.02
100m, 1
0.05
0.1
0.2
*1: when open compensation and short compensation are performed at the conditions
of internal DC bias enabled and the bias voltage 0V
At all times, K
B
= 0 for the direct-current resistance Rdc.