East Tester ET4501, Руководство пользователя

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ET4501/4502/4510 台式 LCR 数字电桥操作手册
杭州中创电子有限公司
21

Zero value adjustment : open circuit and short circuit zeroed before the test
 Warm-up time:> 30 minutes
Calibration time: 12 months
C
：
0.20%*(1+ Cx/Cmax+ Cmin/Cx )(1+Dx)(1+ks+kv+kf)
；
L
：
0.20%*(1+ Lx/Lmax+ Lmin/Lx )(1+1/Qx)(1+ks+kv+kf)
；
Z
：
0.20%*(1+ Zx/Zmax+ Zmin/Zx )(1+ks+kv+kf)
；
R
：
0.20%*(1+ Rx/Rmax+ Rmin/Rx )(1+Qx)(1+ks+kv+kf)
；
D
：
0.20%*(1+ Zx/Zmax+ Zmin/Zx )(1+Dx+Dx*Dx)(1+ks+kv+kf )
；
Q
：
0.20%*(1+ Zx/Zmax+ Zmin/Zx )(Qx+1/Qx )(1+ks+kv+kf )
；
Wherein
1. L, C, R, Z are relative errors; D, Q, θ are absolute errors
2. Where the subscript is x, it is the measurement of this parameter; where the subscript is max, it
is the maximum value and where the subscript is min, it is the minimum value
3. Ks is the speed factor, kv is the voltage factor, kf is the frequency factor
The maximum and minimum values of the measurement parameters that affect accuracy
Frequency(Hz 100 120 200 400 800 1K 2K 4K 8K 10K
Cmax 800 667 400 200 100 80 40 20 10 8
Cmin 1500 1250 750 375 187 150 75 37.5 18.7 15
Lmax 1590 1325 795 397.5 198.8 159 79.5 39.8 19.9 15.9
Lmin 3.2 2.6 1.6 0.8 0.4 0.32 0.16 0..08 0.04 0.032
Z/Rmax 1
Z/Rmin 1.59
Frequency(Hz 15K 20K 40K 50K 80K 100K
Cmax 5.3 4 2 1.6 1 0.8
Cmin 10 7.5 3.75 3 1.87 1.5
Lmax 10.6 7.95 3.98 3.18 1.99 1.59
Lmin 0.021 0.016 0.008 0.0064 0.004 0.0032
Z/Rmax 1
Z/Rmin 1.59
Wherein: the unit of Cmax is uF; the unit of Cmin is pF; the unit of Lmax is H; the unit of Lmin is
mH; the unit of Zmax / Rmax is MΩ; the unit of Zmin / Rmin is in Ω;
Measurement speed error factor ks:
Measurement speed error factor kf:
Frequency
（
Hz
）
100~1K 2K~10K 15K 20K 40K 50K 80K 100K
kf 0 0.5 1 2 3
Measurement speed error factor kv:
level
（
mV
）
100 300 600 1000 1500 2000
kv 10 3 1 0 1 2
Speed mode slow medium fast
ks 0 1 8