Keysight E4981A - Page 175

Keysight E4981A 120 Hz/1 kHz/1 MHz Capacitance Meter 175
Specifications and Supplemental Information
Basic Specifications
Accuracy when ambient temperature exceeds the range of 18°C to 28°C
(Typical)
When the ambient temperature exceeds the range of 18°C to 28°C, multiply
the accuracy obtained above by the coefficient shown in the table below.
When an alternating current magnetic field is applied to the instrument.
Multiply the accuracy obtained in Table 10-8 through Table 10-6.
1+ B × (2+0.5 × K).
B: Magnetic flux density [Gauss]
Vs: Measurement signal level [V]
Cr: Measurement range [F]
Cx: Measured value of capacitance (Cp or Cs)
In tables Table 10-8 to Table 10-13, K is defined as follows:
Cx~ Cr: K = (1/Vs) × (Cr/Cx)
Cx}Cr: K = 1/Vs
where
Cx is measured value of capacitance (Cp or Cs)
Cr is a measurement range and
Vs is a measurement signal level [V].
Table 10-7 Temperature coefficient
Coefficient
0 °C ~ ambient temperature | 8 °C3
8 °C ~ ambient temperature | 18 °C2
18 °C ~ ambient temperature ~ 28 °C1
28 °C | ambient temperature ~ 38 °C2
38 °C | ambient temperature ~ 45 °C3