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Keysight (Agilent)

Keysight (Agilent) E4991B

Impedance Analyzer, 1MHz to 500 MHz/1 GHz/3 GHz LCR Meters and Impedance Analyser
1 MHz to 3 GHz Frequency Range
1 mΩ to 100 MΩ Impedance Measurement Range
±0.08% Basic Impedance Accuracy
4 mV rms to 1 V rms (into 50 Ω load) Test Signal Level (Voltage)
200 µA rms to 20 mA rms Test Signal Level (Current)
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Attribute Value
Frequency Range 1 MHz to 3 GHz
Impedance Measurement Range 1 mΩ to 100 MΩ
Basic Impedance Accuracy ±0.08%
Test Signal Level (Voltage) 4 mV rms to 1 V rms (into 50 Ω load)
Test Signal Level (Current) 200 µA rms to 20 mA rms
DC Bias Voltage 0 V to ±40 V (internal), up to ±400 V (external)
DC Bias Current 0 mA to ±100 mA (internal)
Measurement Parameters |Z|, |Y|, θ, R, X, G, B, Cs, Cp, Ls, Lp, Rs, Rp, D, Q, Γ, and more
Interface/Connectivity LAN (LXI Core), USB, GPIB
Display 10.4-inch color LCD touch screen
Keysight (Agilent) E4991B Options:
  • E4991B - 050 - Frequency range 1 MHz to 500 MHz
  • E4991B - 100 - Frequency range 1 MHz to 1 GHz
  • E4991B - 300 - Frequency range 1 MHz to 3 GHz
  • E4991B - 001 - DC Bias (DC voltage bias and DC current bias)
  • E4991B - 002 - Material measurement (permittivity and permeability parameters)
  • E4991B - 007 - Temperature Characteristic Test Kit
  • E4991B - 010 - Alternative test head (compact test head)
  • E4991B - 1E5 - High stability frequency reference (±1 ppm, 5°C to 40°C)
Calibration Form Keysight (Agilent) E4991B

Repair Form Keysight (Agilent) E4991B
Maximum file size: 40MB

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ModelE4991B

The Keysight (Agilent) E4991B Impedance Analyzer offers precise impedance analysis across three frequency ranges (1 MHz–500 MHz, 1 GHz, 3 GHz) with ±0.65% basic accuracy and impedance range of 120 mΩ to 52 kΩ. It features a large 10.4-inch color touchscreen, built-in DC bias (0–±40 V, 0–±100 mA), and supports detailed data analysis, including equivalent circuit analysis and limit line testing.

Supporting advanced options like dielectric/magnetic material measurement (Option 002), temperature characteristics analysis (Option 007), and wafer-level testing (Option 010), it simplifies complex R&D and QA workflows. Compatible with N1500A-005 for material evaluation.

Testwall can supply the used Keysight (Agilent) E4991B, fully tested. With expert support and global delivery, Testwall ensures high-performance instrumentation with unmatched reliability and service quality. Please contact us directly if you need calibration or repair of the Keysight (Agilent) E4991B.

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