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HOME Test and Measurement Analyzers Impedance Analyzers Agilent HP 4191A

Agilent HP 4191A

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Description of Agilent HP 4191A

Categories: Analyzers, Impedance Analyzers

Manufacturer: Keysight Technologies (Agilent HP)

Model: 4191A

Condition: Used

Keysight / Agilent (HP) 4191A 1 to 1000 MHz RF Impedance Analyzer, Refurbished. The...

Keysight / Agilent (HP) 4191A 1 to 1000 MHz RF Impedance Analyzer, Refurbished. The Keysight Agilent HP 4191A RF Impedance Analyzer measure 14 parameters with a maximum resolution of 4.5 digits. The internal synthesizer provides variable frequencies from 1 MHz through 1000 MHz covering the UHF, VHF, and video bands with automatic sweep capability. An internal dc bias supply with auto sweep function covers the voltage range of � 40 V in 10 mV steps. The Keysight Agilent HP 4191A permits reliable measurements over a wide measuring range. Its outstanding repeatability, frequency response, and accuracy are made possible by a unique error-correction capability and specially designed test fixtures. These features allow the Agilent 4191A to be used in evaluating electronic materials, components, and circuitry. The internal synthesizer provides a maximum resolution of 100 Hz (option 002) with an accuracy of 3 ppm, allowing small changes in the resonant frequency of the device under test to be easily detected. The swept frequency capability aids in the analysis of frequency characteristics of the device. Two complete front-panel settings (parameter selection and the sweep control) can be stored in a non-volatile memory and recalled at any time with a single key operation. This, together with the standard HP-IB interface, makes the Keysight Agilent HP 4191A extremely efficient as either a standalone or a systems instrument.
Condition: Refurbished

Product specifications of Agilent HP 4191A (From Used-Line T&M Specifications)

  • Launch Date Jan-2049
  • Alternative E4991A RF Impedance/Material Analyzer
  • Status Discontinued by Manufacturer

The HP 4191A RF Impedance Analyzer is a fully automatic, high performance test instrument designed to measure diverse impedance parameter values of electronic devices and materials at extended frequencies ranging from MF to the UHF region.

  • Test frequency: 1 to 1000 MHz
  • Frequency resolution: 100 kHz to 200 kHz (Option of 100 Hz to 200 Hz)
  • Internal synthesizer test frequency signal accuracy to 3 ppm
  • Measurements:
    • Resistance (R)
    • Reactance (X)
    • Conductance (G)
    • Susceptance (B)
    • Inductance (L)
    • Capacitance (C)
    • Dissipation factor (D)
    • Quality factor (Q)
    • Impedance (|Z|)
    • Admittance (|Y|)
    • Phase angle
    • Reflection parameter measurements
  • Measurement ranges:
    • R/Z: 100 mOhm to 20 kOhm
    • Y: 100 microS to 10 S
    • G: 20 microS to 10 S
    • L: 0.1 nH to 5 mH
    • C: 0.1 pF to 1 microF
    • X: 100 mOhm to 20 kOhm 
  • Measurement frequency is keyboard controlled
  • Measurement accuracy of 1%
  • Built-in test signal source
  • Dual mode digital sweep operations: Linear, logarithmic
  • Fast sweep for 10x programmed step frequency intervals in linear sweep mode, or 1/5 of frequency points in logarithmic sweep mode
  • Auto range and Hold 
  • Simultaneous readouts of two measurement display sections at 4.5 digits
  • Programmable test parameters can be controlled through the front panel keys or via HP-IB
  • Internal dc bias up to +/- 40 V as well as swept voltage bias
  • Installation of options, such as high resolution and analog recorders, increase the flexibility and versatility of operation
  • Automatic calibration
  • Self test

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