TH2826 Operation manual
Ver1.0
◇
64
(2)In the mode of constant voltage or current
When range>=100
Ω
Basic accuracy Z(%) or
( )
θ
°
|
[ ]
[ ] |
(
)
[ ]
B Zx
Range
A
Range
×
Ω −
Ω
= ± +
Ω
(2)
When range <100
Ω
Basic accuracy Z(%) or
( )
θ
°
|
[ ] 10
[ ] |
(
)
[ ]
B Range
Zx
A
Range
×
Ω × −
Ω
= ± +
Ω
(3)
In (2)
、
(3)
，
Zx: sample value of |Z|
The sample value of impedance is considered as test result or caculated by the formula below
：
|
| ( )
( )
Zx
L H
ω
Ω =
(
90 )
θ
= °
1/
( )
C F
ω
=
(
90 )
θ
= − °
( )
R
=
Ω
(
0 )
θ
= °
Test condition of basic accuracy :
1.
Use TH26048 test fixture;
2.
Test speed:SLOW
3.
Cable length factor:0m
4.
Temperature and humidity
：
20±5
℃
，
(RH)<=80%
5.
Warm up:60 Min
6.
Before testing, perform open and short correction
6.3.2Test speed factor(C)
Speed
(FAST)
(NORMAL)
(SLOW)
C
5
2
1
