25 | Keysight | E4991B Impedance Analyzer - Data Sheet
Option E4991B-007 Temperature Characteristic Test Kit
This section contains specifications and supplemental information for the E4991B Option
E4991B-007. Except for the contents in this section, the E4991B standard specifications
and supplemental information are applied.
Operation temperature
Range:
–55 °C to +150 °C
(at the test port of the high temperature cable)
+5 °C to +40 °C
(Main unit, test head, and their connection cable)
Source characteristics
Frequency
Range:
1 MHz to 3 GHz (Option 300)
1 MHz to 1 GHz (Option 100)
1 MHz to 500 MHz (Option 050)
Oscillator level
Source power accuracy at the test port of the high temperature cable:
Frequency ≤ 1 GHz:
Minimum: –4 dB, Maximum: +2 dB (23°C ± 5°C)
Minimum: –6 dB, Maximum: +4 dB (5 °C to 40 °C)
Frequency > 1 GHz:
Minimum: –5 dB, Maximum: +3 dB (23°C ± 5°C)
Minimum: –7 dB, Maximum: +5 dB (5 °C to 40 °C)
Measurement accuracy (at 23 °C ± 5 °C)
Conditions1
The measurement accuracy is specified when the following conditions are met:
Calibration: open, short and load calibration is completed at the test port
(7-mm connector) of the high temperature cable
Calibration temperature: calibration is performed at an environmental temperature
within the range of 23 °C ± 5 °C. Measurement accuracy doubles when calibration
temperature is +5 °C to +18 °C or +28 °C to +40 °C.
Measurement temperature range: within ± 5 °C of calibration temperature
Measurement plane: same as calibration plane
Impedance, admittance and phase angle accuracy:
|Z|, |Y| ± (Ea + Eb) [%]
(see Figure 31 through Figure 34 for calculated accuracy)
(Ea + Eb)
±
q
[rad]
100
1. The high temperature cable must be kept at the same position throughout calibration and
measurement.
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