East Tester ET430 - 8.3 Accuracy indicator; 8.3.1. Accuracy indicator 1(ET433)

Hangzhou Zhongchuang Electronics Co., Ltd.
18
[%]*)Klz*100(ce KtKAbAA 
Ac-- calibration accuracy
Ab-- basic accuracy
Kz-- impedance scaling factor
Kl-- cable length factor
Kt-- temperature factor
The accuracy of D
The accuracy of D—De is:
when Dx≤0.1:
100/e AeD 
Dx-- D measured
Ae-- relative accuracy of R, C, L, Z, and X
When Dx> 0.1: multiply (1 + Dx) by De
The accuracy of Q (when Q * De<1)
The accuracy of Q—Qe is:
DeQx
DeQx
Q
*1
*
e
2


Qx -- Q measured
De-- relative accuracy of D
The accuracy of θ
The accuracy of θ—θe is:
[deg]
100
*180
e


Ae

Ae——relative accuracy of R, C, L, Z, and X
The accuracy of Rp (when Dx≤0.1)
Rpe—the accuracy of Rp is:
][
*
Ω
DeDx
DeRpx
Rpe


Rpe --relative accuracy of Rp
Rpx-- measured Rp (Ω)
Dx-- D measured
De--relative accuracy of D
The accuracy of Rs (when Dx≤0.1)
Rse—the accuracy of Rs is:
][*se ΩDeXxR 
LxX f2x  
Rse --relative accuracy of Rs