07 | Keysight | E4980A Precision LCR Meter 20 Hz to 2 MHz, E4980AL Precision LCR Meter 20 Hz to 300 kHz/500 kHz/1 MHz – Data Sheet
Absolute measurement accuracy
The following equations are used to calculate absolute accuracy.
Absolute accuracy Aa of |Z|, |Y|, L, C, R, X, G, B (L, C, X, and B accuracies apply when
Dx ≤ 0.1, R and G accuracies apply when Qx ≤ 0.1 )
Equation 1.
Aa = Ae + Acal
Aa
Ae
Acal
Absolute accuracy (% of reading value)
Relative accuracy (% of reading value)
Calibration accuracy (%)
where G accuracy is applied only to G-B measurements.
D accuracy (when Dx ≤ 0.1)
Equation 2.
De + θcal
Dx
Measured D value
De
θcal
Relative accuracy of D
Calibration accuracy of θ (radian)
Q accuracy (When Qx × Da < 1)
Equation 3.
(Qx2 × Da)
± ————————————
(1 Qx × Da)
Qx
Da
Measured Q value
Absolute accuracy of D
θ accuracy
Equation 4.
θe + θcal
θe
θcal
Relative accuracy of θ (degree)
Calibration accuracy of θ (degree)
KEYSIGHT [ Keysight Technologies ]
