East Tester ET430 Instructions For Use Manual page 22

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:
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:
Qx -- Q measured
De-- relative accuracy of D
The accuracy of θ
The accuracy of θ—θe is:
Ae——relative accuracy of R, C, L, Z, and X
The accuracy of Rp (when Dx≤0.1)
Rpe—the accuracy of Rp is:
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:
Rse --relative accuracy of Rs
Hangzhou Zhongchuang Electronics Co., Ltd.
A e A c ( Ab 100
   
D e 
Q e  
180
 e
 
100
Rpe
 
se
R  
x
X
* K z Kl * ) Kt [%]

 Ae / 100
2 *
Qx De
1 *
 Qx De
* Ae
[deg]

Rpx * De
[ ]
Ω
Dx De

* [ ]
Xx De
Ω
2  f
 Lx
18