UNI-T LCR-1000 series Operation Manual page 22

When measuring level correction level ArB (Refer to table 3-3), select measuring accuracy A according to
Fig.3-1, the basic accuracy after level correction is A multiplied by Ar. Here, V
Speed
Medium
Slow
Fast
Note:
fm: measured frequency, [Hz]
Zm: measured impedance of DUT, []
Vs: voltage of test signal, [mV
Temperature (℃)
Test frequency
Typical frequency (Direct calibration)
Non-typical frequency (Interpolation
calibration)
Note: So far frequency points of all models are typical frequencies.
Test frequency
Test Signal Voltage
V
S
0.1V
0.3V
1V
Table 3-4 Impedance Scaling Factor K
Frequency K

1 10
fm100Hz
(
Z
100Hzfm
(
≤100kHz
fm100kHz
2 5 .
fm100Hz
(
100Hzfm
(
≤100kHz
fm100kHz
(
rms
Table 3-5 Temperature Factor K
5
K 6
c
Table 3-6 Calibration Interpolation Factor Kf
Table 3-7 Cable Length Factor
Cable Length
0m 1m
Table 3-1
Accuracy Correction Factor
(Zm<500）
a

3
200 100
 
)( 1 )( 1 )
V f
m s m
 
3
1 10 200

)( 1 )
Z V
m s


3
1 10 200

( )( 2 )
Z V
m s
 
3
10 400 100
 
)( 1 )( 1 )
Z V f
m s m
 
3
2 5 . 10 400

)( 1 )
Z V
m s


3
2 5 . 10 400

)( 2 )
Z V
m s
]
8 18
4 2
Kf
0
0.0003
is voltage of test signal.
S
Ar
2.5
1.5
1
and K
a b
（Zm>500）
K
b
70 100

  
9
Z 1 ( 10 )( 1 )( 1
m
V f
s
70

 
9
Z 1 ( 10 )( 1 )
m
V
s
70
  
9
Z 3 ( 10 )( 1 )
m
V
s
100 100
   
9
Z 2 ( 10 )( 1 )( 1
m
V
s
100

 
9
Z 2 ( 10 )( 1 )
m
V
s
100

 
9
Z 6 ( 10 )( 1 )
m
V
s
c
28 38
1 2
2m
)
m
)
f
m
4