E4980A-301 Datasheet, PDF (9/38 Pages) Keysight Technologies – Precision LCR Meter

09 | 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
1.  When the calculation result is a negative
value, 0 A is applied.
Relative accuracy
Relative accuracy includes stability, temperature coefficient, linearity, repeatability, and
calibration interpolation error. Relative accuracy is specified when all of the following
conditions are satisfied:
–– Warm-up time: 30 minutes
–– Test cable length: 0 m, 1 m, 2 m, or 4 m (Keysight Technologies, Inc. 16048A/D/E)
–– A “Signal Source Overload” warning does not appear.
When the test signal current exceeds a value in table 11 below, a “Signal Source
Overload” warning appears.
Table 11.
Test signal voltage
≤ 2 Vrms
> 2 Vrms
Test frequency
–
≤ 1 MHz
> 1 MHz
Condition¹
–
The smaller value of either 110 mA or
130 mA - 0.0015 × Vac × (Fm / 1 MHz) × (L_cable + 0.5)
70 mA - 0.0015 × Vac × (Fm / 1 MHz) × (L_cable + 0.5)
Vac [V]
Fm [Hz]
L_cable [m]
Test signal voltage
Test frequency
Cable length
–– OPEN and SHORT corrections have been performed.
–– Bias current isolation: Off
–– The DC bias current does not exceed a set value within each range of the DC bias
current
–– The optimum impedance range is selected by matching the impedance of DUT to the
effective measuring range.
–– Under an AC magnetic field, the following equation is applied to the measurement
accuracy.
A x (1 + B x ( 2 + 0.5 / Vs))
Where
A:
Absolute accuracy
B:
Magnetic flux density [Gauss]
Vs:
Test signal voltage level [Volts]
|Z|, |Y|, L, C, R, X, G, and B accuracy (L, C, X, and B accuracies apply when Dx ≤ 0.1,
R and G accuracies apply Qx ≤ 0.1)
Relative accuracy Ae is given as:
Equation 8.
Ae = [Ab + Zs /|Zm| × 100 + Yo × |Zm| × 100 ] × Kt
Zm
Impedance of DUT
Ab
Basic accuracy
Zs
Short offset
Yo
Open offset
Kt
Temperature coefficient
D accuracy
D accuracy De is given as
–– when Dx ≤ 0.1
Equation 9.
De = ±Ae/100
Dx
Measured D value
Ae
Relative accuracies of |Z|, |Y|, L, C, R, X, G, and B
–– when Dx > 0.1, multiply De by (1 + Dx)