GW Instek LCR-800 Series - Maintenance Procedures; Instrument Cleaning Guidelines; Replacing the System Battery

LCR-800 Series User Manual
39
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)
#
or (X/Ymax )
#
or (Ymin/X)
#
] (1+D)(1+Kb+Kc)
R: 0.03% + 0.02% [ (1+Ka)
#
or (X/Ymax )
#
or (Ymin/X)
#
] (1+Q)(1+Kb+Kc)
L: 0.03% + 0.02% [ (1+Ka)
#
or (X/Ymax )
#
or (Ymin/X)
#
] (1+ 1 /Q)(1+Kb+Kc)
! The formulas of secondary readout accuracy for D and Q.
Error
D with C
2count±0.0003 + 0.0002[(1+Ka)
#
or (X/Ymax)
#
or (Ymin/X)
#
] (1+D+D×D)(1+Kb+Kc)
Q with R
2count±0.0003 + 0.0002[(1+Ka)
#
or (X/Ymax)
#
or (Ymin/X)
#
] (1+Q+Q×Q)(1+Kb+Kc)
Q with L
2count±0.0003 + 0.0002[(1+Ka)
#
or (X/Ymax)
#
or (Ymin/X)
#
] (1+Q+Q×Q)(1+Kb+Kc)
#: 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.
Error
D1 2count + 0.02%[(1+Ka)
*
or (Rx/Rmax)
*
or (Rmin/Rx)
*
] (1+ 1/D)(1+Kb+Kc)+0.03%
D1 2count + 0.02%[(1+Ka)
**
or (Cx/Cmax)
**
or (Cmin/Cx)
**
] (1+ 1/D)(1+Kb+Kc)+0.03%
*: 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 ,Kb = 10