Chroma 3300 - 2.4 Measurement Accuracy; 2.5 Accuracy Details

Specifications
2-3
2.4 Measurement Accuracy
Measurement accuracy is specified when all of the following conditions are
satisfied:
(1) Warm-up time: ≧ 30 minutes
(2) OPEN and SHORT corrections have been performed.
2.5 Accuracy
 Within 1 year after factor calibration.
 Temperature : 23 ℃± 5 ℃
 Relative humidity : 80% maximum
 Warm up : 30 minutes minimum.
 Zero calibrated under conditions above.
1. •｜ z ｜ - θ Accuracy
The basic accuracy is listed in table 2-1
 For Fast rate, on all range, the accuracy must be doubled.
2. L, C, R Accuracy
For Q ≧ 10 (D ≦ 0.1), correspond to accuracy of ｜ Z ｜ , where
｜ Z
L
｜ = ｜ 2 π fL ｜
｜ Z
C
｜ = ｜ 1/(2 π fC) ｜
Refer to conversion chart between LC and ｜ Z ｜ in Figure 2-1.
If Q <10(D > 0.1), multiply L accuracy by (1 ＋ 1/Q) and multiply C accuracy by (1 ＋ D).
3. D, Q, R Accuracy
For all D value
Accuracy of D = ± [ tan θe．(1+D
2
)]/[1-D． ta nθe]
For Q ≧ 10
Accuracy of Q = ± [tan θe．(1+Q
2
)]/[1-Q． tan θe ]
If Q < 10, multiply accuracy Q by (1 ＋ 1/Q)
< where θ e is accuracy error of phase angle θ >