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 read out accuracy of C, R, and L.
C: 0.03% + 0.02% [ (1+K a)# or (X/Ymax )# or (Ymi n/X)# ] (1+D)(1+Kb+Kc)
R: 0.03% + 0.02% [ (1+K a)
#
or (X/Ymax )# or (Ymi n/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)
! Th e formu las of secondary read ou t accuracy for D and Q.
Error
D with C
2count±0.0003 + 0.000 2[(1+Ka)
#
or (X/Ymax) # or (Ymi n/X)
#
] (1+D+D×D)(1+Kb+Kc)
Q with R
2count±0.0003 + 0.000 2[(1+Ka)
#
or (X/Ymax) # or (Ym in/X)
#
] (1+Q+Q×Q)(1+Kb+Kc)
Q with L
2count±0.0003 + 0.000 2[(1+Ka)
#
or (X/Ymax) # or (Ym in/X)
#
] (1+Q+Q×Q)(1+Kb+Kc)
#: 1. if XYmax, please select (X/ Y m ax)
2. if XYmin, please select (Ym in/ X )
3. if Ymin<X<Ymax, please select (1+Ka)
! The for mula s for secon d ary rea dout accuracy of R wit h C.
Error
D1 2count + 0.02%[( 1+K a)* or (Rx/Rmax)* or (R min/R x)*] (1+ 1/D)(1+Kb+Kc)+0.03%
D1 2count + 0.02%[( 1+K a)** or (Cx/ Cmax)** or (C min/C x)**] (1+ 1/D)(1+Kb+Kc)+0.03%
*: 1. If RxRmax , plea se select (Rx/Rmax)
2. if RxRmin, please select (Rmin/Rx)
3. if Rmin<Rx<Rmax, please select (1+Ka)
**: 1. If CxCmax, please select (Cx/Cmax)
2. if CxCmin, pl ease sel ect (Cm in/ C x)
3. if Cmin<Cx<Cma x, ple a se se lect (1 +K a )
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