East Tester ET430 Instructions For Use Manual page 24

Accuracy factor
This section contains all the accuracy correction factors: Impedance scaling factor Kz,
temperature factor Kc, calibration factor Kf, cable length factor Kl.
Frequen
cy/Hz
Less
* 1
(
than
|
100
100
to 100k
Greater
than
100k
Note: fm in the table indicates the frequency of the test signal （ unit ： Hz ） ， Zm is the
impedance (unit: Ω), Vs the test level (unit: mV)
Temperature factor Kc
T--room temperature
Calibration factor Kf
Range
10kΩ
1kΩ、100kΩ
100Ω
0 meter
Hangzhou Zhongchuang Electronics Co., Ltd.
Kz（Zm<500Ω）
10  3 200
)( 1 )( 1
 
|
Zm Vs
* 1 10  3 200
( )( 1 )

| Zm | Vs
3
* 1 10  200
( )( 2 )

| Zm | Vs
K c . 0 25 ( * T
 
10 to 100
Cable length factor Kl
1 meter
Kz（Zm≧500Ω）
100
) | Zm ( | * 1 10
fm
| Zm | 5 (
| Zm ( |
20 )
(When Kc <1, Kc = 1)
Frequency /Hz
0
0.02
0.04
2 meters
20
70 100
9 )( 1 )( 1
  
Vs fm
70
* 10  9 )( 1 )

Vs
70
* 1 10  8 )( 1 )

Vs
100 to 100k
0
0.01
0.03
4 meters
)