Tonghui TH2829 Series - D Accuracy; Q Accuracy; Θ Accuracy; G Accuracy

TH2829X Series Operation Manual Chapter 8 Performance and Test
147
Using condition of R, G accuracy A
e
：Q
x
（test value of Q）≤0.1
When D
x
≥0.1, accuracy factor A
e
of L, C, X, B should be multiplied by
2
1
x
D
When Q
x
≥0.1, accuracy factor A
e
of R, G should be multiplied by
2
1
x
Q
8.3.2 D accuracy
The accuracy of D is given by the formula below：
D
e
=
100
eA

The formula is only available when D
x
≤0.1.
When D
x
>0.1, D
e
should be multiplied by（1+D
x
）
8.3.3 Q accuracy
The accuracy of Q is given by the formula below：
Q
e
=
ex
ex
DQ
DQ



1
2
Where, Q
x
is the value of the tested Q.
D
e
is the accuracy of D
Above formula should be used when Q
x
× D
e
<1.
8.3.4 Θ accuracy
The accuracy of θ is given by the formula below：
θe =
100
180 eA


[deg]
8.3.5 G accuracy
When Dx (tested value of D)≤0.1
The accuracy of G is given by the formula below：
G
e
= B
x
× D
e
[S]
B
x
= 2πfC
x
=
xfL  2
1
Where, B
x
is the value of tested B with the unit [S].
C
x
is the value of tested C with the unit [F].
L
x
is the value of tested L with the unit [H].
D
e
is the accuracy of D.