NF ZM2376 - Page 204

7.1 Specification
7-8 ZM2376
• Kc: Cable length coefficient
Frequency range
Kc [%]
DC, Frequency ≤ 1kHz
0.01 x (Cable length[m])
1kHz < Frequency ≤ 100kHz
0.2 x (Cable length[m])
100kHz < Frequency ≤ 1MHz
0.5 x (Cable length[m])
2
1MHz < Frequency
20 x (Cable length[m])
2
Restriction on measurement frequency and signal level depending on cable length
Cable length
Applicable frequency
range
Applicable signal level
0m
All ranges including DC
All range
1m
DC, Frequency ≤ 2MHz
All range
2m
DC, Frequency ≤ 2MHz
All range
4m
DC, Frequency ≤ 1MHz
All range for DC and frequency ≤ 500kHz
≤ 2V for frequency > 500kHz
The measurement accuracy is not guaranteed for frequencies and signal levels out of these
ranges.
• Kz: Residual impedance coefficient
Frequency range
Kz [%]
DC, Frequency ≤ 20kHz
(0.02 + Kc) / Zx[Ω]
20kHz < Frequency ≤ 100kHz
(0.05 + Kc) / Zx[Ω]
100kHz < Frequency
(0.5 + Kc) / Zx[Ω]
• Ky: Residual admittance coefficient
When the cable length is 0m, the coefficient is as shown in the table below.
When an extension cable (1m, 2m, or 4m) is used on the frequency of more 20kHz, the
coefficient is 10 times of the value shown below.
Frequency range
Ky [%]
DC, Frequency ≤ 50kHz
Zx[Ω] / ( 2 × 10
7
)
50kHz < Frequency ≤ 500kHz
Zx[Ω] × (Frequency[kHz])
2
/ (2 × 10
10
)
500kHz < Frequency
Zx[Ω] / ( 1× 10
5
)