Impedance Analyzers of Wayne Kerr 

6500 Series 

The 6500B series of Precision Impedance Analyzers provide precise and fast testing of components at frequencies up to 120 MHz. Basic measurement accuracy is ±0.05% making the instruments the best in the class.
The accuracy and versatility makes the precision analyzers the ideal choice for many different tasks and applications including passive component design, dielectric material characterisation and manufacturing test.
Engineers need to evaluate component characteristics at high frequencies with high levels of accuracy. The 65120B 120 MHz Precision Impedance Analyzer is therefore ideal for many demanding tasks, combining accuracy and ease of use at an affordable price. If a frequency range up to 120 MHz is not required then other models are available. The 6505B 5MHz instrument is the entry level model in the range.

Key Features

  • Precise high frequency impedance measurements
  • Characterize components from 20 to 120 MHz
  • Wide range of models with maximum frequencies from 5MHz (6505B) to 120MHz (65120B)
  • 0.05% basic measurement accuracy
  • 0 to +40V DC bias voltage and 0 to 100mA DC bias Current (Option)
  • ±40V DC bias voltage (Option)
  • Comprehensive measurement functions
  • Easy to use with large TFT touch screen
  • Clear graphic displays aids measurements
  • Traditional LCR Meter mode for single and repetitive measurements
  • Resonance Search
  • Equivalanct Circuit Analysis (Option)
  • Intuitive user interface
  • Fully programmable over GPIB and LAN
  • Polar and Complex Plots available (option)
  • Multi Measurement Mode available (option)
  • Keyboard and mouse optional control
  • Competitively priced

6565 Series High Frequency DC Bias

The 6565 HF DC Bias Unit is intended to be used with a Wayne Kerr 6500 analyzer, either the 6500B Precision Impedance Analyzer or the 6500P HF LCR Meter. Its function is to provide a source of DC bias current through the Device Under Test (DUT) while the analyzer is making AC measurements. Each 6565 unit can provide up to 10 A of DC current, and up to six 6565 units can be connected in parallel to supply a maximum 60 A. A digital ammeter on the front panel allows the user to see the dc bias current value and an indicator LED shows when the bias current is enabled.
High current 50Ω coaxial cable is used to carry the DC bias current from the 6565 unit to the fixture. The measurement signal from the 6500 analyzer front panel is connected to the fixture using a dedicated cable, a control cable connects the rear panels of the 6500 and 6565, and a safety interlock cable is connected from the fixture to the rear panel of the 6565.
There are 3 models in the 6565 series. The models are defined by their frequency range as follows:

           6565-05             20 Hz to 5 MHz
           6565-30             20 Hz to 30 MHz
           6565-120           20 Hz to 120 MHz

Any 6500 analyzer can be used with any 6565 unit. The maximum measurement frequency of the system will be determined by the instrument with the lower maximum frequency. For example, a 120 MHz 65120P used with a 5 MHz 6565-05 will have a maximum measurement frequency of 5 MHz.
The 6500 analyzer controls the 6565 unit. The DC bias current is set as part of the 6500's measurement setup and the 6565's status and warning messages are shown on the 6500's display.
A common wound component measurement with the 6500B/6565 system is to measure the value of inductance as the DC Bias Current through the DUT is swept from 0A to the DUT's rated maximum current.
Another common technique is to use the Reference Trace function on the 6500B Precision Component Analyzer. This allows frequencies sweeps performed at different DC bias current levels to be instantly displayed and compared on the 6500B's display

Key Features

  • No comparable system is currently available from other manufacturers
  • Allows measurements up to 120 MHz to be made with 40 A DC Bias Current flowing through the Device Under Test
  • Measurements up to 15 MHz can be made with 60A DC Bias Current
  • 6500B analyzer allows measurements to be made while sweeping DC Bias Current in value
  • Frequency swept measurements with different DC Bias Currents can be compared using the 6500B Reference Trace facility
  • Wayne Kerr fixtures provide a safety interlock circuit and other protection circuits to protect both the operator and the equipment under fault conditions 

6430B and 6440B Series Precision Component Analyzer

The 6430B and 6440B Precision Component Analyzers provide thorough and accurate testing of any passive component to high resolution. In particular, for capacitor manufacturers, the instruments provide capabilities for both fast automatic production testing and complete design characterisation. Users include designers of passive components, manufacturing test, designing and testing materials as well as circuit designers who are evaluating component characteristics.
The resonant frequency can be automatically calculated for any component together with its equivalent series or parallel circuit at that frequency. Both instruments are designed for high performance testing of components, with a basic accuracy of 0.02%, at a low price. 6430B is the entry level instrument covering to 500 kHz whilst the fully featured 6440B covers to 3 MHz.
To evaluate a component performance at high speed over a specified range of frequencies, multi frequency mode is used. In this mode the operator decides which parameter is to be measured and at what frequencies. The 6430B and 6440B does the rest, creating an easy to read table on the large LCD display. Each test can have a simple Pass/Fail display.

Key Features

  • Fast automatic capacitor testing
  • High measurement accuracy on dissipation factor
  • Fast measurement speed
  • 0.02% basic measurement adccuracy
  • Comprehensive measurement functions, Graphical sweep on all measurement functions
  • Characterize components to 3 MHz
  • Large LCD Display and intuitive user interface
  • Unbeatable price

3255B Series Precision Magnetics Analyzer

The 3255B range of inductance analyzers are able to accurately characterise devices in a clear and simple manner. The inductance analyzers are available in three versions 3255BL (200kHz), 3255B (500kHz) and 3255BQ (1 MHz).
At the design stage of component development it is very important to analyse how components performs under different operating conditions. This includes operation over a range of frequencies, AC drive levels or DC bias currents.
The AC drive level can be set between 1 mV and 10 V. DC bias current can be set from 1 mA to 1 A internally (optional). Using the external 3265B range of DC Bias Units bias currents can be set to a maximum of 125 A.

Key Features

  • 3 models: 3255BL, 3255B, and 3255BQ
  • Wide frequency range (20 Hz to 3MHz)
  • 0.1% basic accuracy
  • Z, L, C, Rac, Ř, Q, D, Rdc & Turns Ratio
  • Internal 1 A DC bias current (option)
  • Up to 125A of DC bias current with 5 x 3265B
  • Bin function (option)
  • Multi-frequency mode
  • Fast measurement speed (up to 20 measurements per second)
  • Straightforward intuitive operation
  • Print test results
  • GPIB control with LabVIEW™ driver

3260B Series Precision Magnetics Analyzer

At the design stage of component development it is vitally important to understand how the component performs under different operating conditions. This might include operation at diverse frequencies, AC drive levels or DC bias currents.
The 3260B Precision Magnetics Analyzer can plot any of the measurement functions, such as inductance (L) or impedance (Z), (including secondary term) against frequency, AC drive level or DC bias current.
Frequency sweeps within the range 20 Hz to 3 MHz can be selected. There is a choice of either linear or logarithmic frequency displays.
3260B is especially suitable for measuring parameters on telecom transformers.
The selected parameter and its secondary value are presented graphically. AC drive levels can be set between 1 mV and 10 V. DC bias current can be set from 1 mA to 1 A internally. Using external 3265B 25 A DC Bias Units bias currents can be set to a maximum of 125 A.

Key Features

  • Wide frequency range of 20 Hz to 3MHz
  • 0.1% basic accuracy
  • Internal 1A DC bias current
  • Up to 125A of DC bias current
  • Bin Handler Mode (option) sort components in up to 10 bins
  • Analysis mode - graph measured parameters against Frequency, AC Drive Level & DC Bias Current
  • Z, L, C, Rac, Ř, Q, D, Rdc & Turns Ratio
  • Straightforward intuitive operation
  • Print test results
  • IEEE 488 GPIB control with LabVIEW™ driver