GW Instek LCR-800 Series User Manual page 43

LCR-800 Series User Manual
The Error value of LCR-817/819 (Double the error value for LCR-827/829,
4 times the error value for LCR-816/826)
!
The formula for primary readout accuracy of C, R, and L.
C: 0.03% + 0.02% [ (1+Ka)
R: 0.03% + 0.02% [ (1+Ka)
L: 0.03% + 0.02% [ (1+Ka)
! The formulas of secondary readout accuracy for D and Q.
D with C 2count±0.0003 + 0.0002[(1+Ka)
Q with R 2count±0.0003 + 0.0002[(1+Ka)
Q with L 2count±0.0003 + 0.0002[(1+Ka)
#: 1. if X Ymax, please select (X/Ymax)
2. if X Ymin, please select (Ymin/X)
3. if Ymin<X<Ymax, please select (1+Ka)
!
The formulas for secondary readout accuracy of R with C.
D 1
2count + 0.02%[(1+Ka)
D 1
2count + 0.02%[(1+Ka)
*: 1. If Rx Rmax, please select (Rx/Rmax)
2. if Rx Rmin, please select (Rmin/Rx)
3. if Rmin<Rx<Rmax, please select (1+Ka)
**: 1. If Cx Cmax, please select (Cx/Cmax)
2. if Cx Cmin, please select (Cmin/Cx)
3. if Cmin<Cx<Cmax, please select (1+Ka)
Where
Ka: Constant Voltage factor
Constant Voltage On , Ka = 2
Constant Voltage Off, Ka = 0
Kb: Test Speed factor
Speed = SLOW , Kb = 0
Speed = MEDIUM , Kb = 3
Speed = FAST
#
or (X/Ymax )
#
or (X/Ymax )
#
or (X/Ymax )
#
or (X/Ymax)
#
or (X/Ymax)
#
or (X/Ymax)
*
or (Rx/Rmax)
**
or (Cx/Cmax)
,Kb = 10
# #
or (Ymin/X) ] (1+ D )(1+Kb+Kc)
# #
or (Ymin/X) ] (1+ Q )(1+Kb+Kc)
# #
or (Ymin/X) ] (1+ 1 / Q )(1+Kb+Kc)
Error
#
or (Ymin/X)
#
or (Ymin/X)
#
or (Ymin/X)
Error
* *
or (Rmin/Rx) ] (1+ 1/ D )(1+Kb+Kc)+0.03%
** **
or (Cmin/Cx) ] (1+ 1/ D )(1+Kb+Kc)+0.03%
39
#
D
] (1+ +D×D)(1+Kb+Kc)
#
Q
] (1+ +Q×Q)(1+Kb+Kc)
#
Q
] (1+ +Q×Q)(1+Kb+Kc)