Precision Impedance Analyzers 6500B Series

  • Precise high frequency impedance measurements
  • Characterize components from 20Hz to 120 MHz
  • Wide range of models with maximum frequencies from 5MHz (6505B) to 120MHz (65120B)
  • 0.05% basic measurement accuracy
  • 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
  • Intuitive user interface
  • Fully programmable over GPIB
  • Keyboard and mouse optional control
  • Competitively priced

The 6500 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.

Measurement parameters

      Capacitance (C)
      Inductance (L)
      Resistance (R)
      Reactance (X)
      Conductance (G)
      Susceptance (B)
      Dissipation Factor (D)
      Quality Factor (Q)
      Impedance (Z)
      Admittance (Y)
      Phase Angle (Ø)

High measurement accuracy

Capacitance, inductance and impedance basic accuracy is an excellent ±0.05%. Dissipation factor accuracy is ±0.0005 and the quality factor accuracy is ±0.05%.

Graphical sweep of components

The 6500 series of Precision Impedance Analyzers are highly accurate high frequency component analyzers with a host of useful features.

Graphical sweep of two measured parameters is available and displayed on the clear, large, colour display. Swept parameters are frequency, drive level and DC bias.

Display formats available include series or parallel equivalent circuit.

For single frequency measurements a meter mode is available.

Variable drive and bias levels

AC drive levels up to 1V or 20mA can be selected to evaluate components in realistic operating environments.

The /D1 DC bias option provides 0 to +40V dc bias voltage and 0 to +100mA dc bias current while the /D2 option provides -40V to +40V dc bias voltage.

External control

The GPIB interface is used to control the instrument and read back measured values for applications such as quality control or for archiving purposes.

An Ethernet interface similarly allows the instrument to be controlled and to send out data - allowing it to be integrated into many test environments.

Wide range of interfaces

An external monitor or projector may be connected to the instrument. The ability to provide a large screen display is invaluable in production environments or for teaching and training.

Instrument control from both a keyboard and mouse is available. Any keyboard or mouse, with either PS/2 or USB interfaces, can be simply connected to provide an alternative method of instrument control and operation.

Data storage and retrieval

All measurement and setup data can be stored using the Ethernet interface or a USB flash memory.

Setup data

Up to 20 instrument setups may be stored locally for each mode.

Bin handling

The /B1 option (non-isolated 5V) or /B2 option (isolated 24V) signals are available through a 25-way D-type connector. 10 bins can be set using absolute or percentage limits.

Printer outputs

Hard copy printouts can be obtained in a number of ways including direct to an HP-PCL compatible graphics printer or Epson compatible text/ticket printer. A networked  HP-PCL compatible printer may also be used via Ethernet connection.

Component connections

Four front panel BNC connectors permit three or four terminal connections with the screens at ground potential.

The 1J1101 component fixture, supplied as standard, ensures optimum performance when measuring a wide range of components of leaded components and devices.

Protection against charged capacitors

High precision measuring instruments can be damaged by charged capacitors which can cause costly repairs and unacceptable downtime. All the models in the range incorporate protection against charged capacitors.

Comprehensive and precise component tests at higher frequencies

The 6500 series capabilities are best summarised by “Comprehensive and precise component tests at higher frequencies”. The instruments are the perfect solution for those who have demanding component measurement needs.

Technical Specifications

Specification applies to all analyzers in the range unless a model number or option is specified.

Measurement parameters
Any of the following parameters can be measured and displayed:
AC Functions
      Capacitance (C)
      Inductance (L)
      Resistance (R)
      Reactance (X)
      Conductance (G)
      Susceptance (B)
      Dissipation Factor (D)
      Quality Factor (Q)
      Impedance (Z)
      Admittance (Y)
      Phase Angle (Ø)
Display format
Series or parallel equivalent circuit - all parameters
Test conditions
Frequency range
6505B   20Hz to 5MHz
6510B   20Hz to 10MHz
6515B   20Hz to 15MHz
6520B   20Hz to 20MHz
6530B   20Hz to 30MHz
6550B   20Hz to 50MHz
65120B 20Hz t0 120MHz

Frequency step size: < 1mHz
Accuracy of set frequency ±0.005%

AC Drive level
10 mV to 1V rms*
200 µA to 20 mA rms*
*Varies with frequency

Signal source impedance: 50 Ω nominal

DC Bias Current (option)
/D1 0 to +100mA dc bias current and 0 to +40V dc bias voltage
/D2 -40V to +40V dc bias voltage

Binning (option)
10 bins with absolute and percentage limits
25 way D-type interface connector

/B1 (Non-Isolated)
Common 0V. Bin outputs 0 to 5V (nominal) with >10mA current sink capability
/B2 (Isolated)
Common 24V input. Outputs 0 to 24V with >10mA current source capability.

Mode of operation
Graphical sweep mode
Allows graphical sweep of any two measurement parameters
Swept parameters: - frequency, drive level or DC bias
Meter mode
Allows the instrument to be used as a standard LCR meter.
Setup data
Up to 20 instrument setups may be stored locally for each mode.
Measurement connections
Four front panel BNC connectors permit two, three or four terminal connections with the screens at ground potential.

1J1011 Component Fixture (supplied as standard) allows connection to leaded components and devices.  

Measurement accuracy

Dissipation factor
±0.0005 (1+D2)**

Quality factor
±0.05 %( Q+1/Q)**

Capacitance / Inductance / Impedance

*Varies with frequency, drive level and measured impedance
Power supply
Input voltage 90 V AC to 264 V AC (Autoranging)
Mains frequency
47 to 63 Hz
8.4″ VGA (640 x 480) colour TFT with touch panel
Local printer
HP-PCL compatible graphics printing
Centronics / parallel printer port, Epson compatible text / ticket printing
LAN printer
HP-PCL compatible graphics printing
Remote trigger
Rear panel BNC with internal pull-up, operates on logic low or contact closure
GPIB interface
External instrument control. 24 pin IEEE 488 connector
USB interface
Two Universal Serial Bus Interfaces
USB 1.0 compliant
VGA interface
15-way D-type connector to drive an external monitor in addition to the internal screen
LAN interface
10/100-BASETX Ethernet controller.
RJ45 connector
Keyboard interface
Standard USB or PS/2 keyboard port. Instrument front panel remains active with keyboard plugged in.
Mouse interface
Standard USB or PS/2 mouse port.
Touch screen remains enabled when the mouse is connected.
Bin handler (option)
/B1 Isolated (24 V) and /B2 non-isolated (5 V).
25-way D-type connector
GPIB interface (option)
External instrument control 24 pin IEEE 488 connector
Environmental conditions

This equipment is intended for indoor use only in a non-explosive and non-corrosive atmosphere

Temperature Range
Storage -20°C to 60°C
Operating 0°C to 40°C
Full Accuracy 18°C to 28°C
Relative humidity
Up to 80% non-condensing
Up to 2000m
Installation category
II in accordance with IEC664
Pollution degree
2 - mainly non-conductive
Complies with the requirements of EN61010-1
Complies with EN61326 for emissions and immunity
Height 190 mm (7.5″)
Width 440 mm (17.37″)
Depth 525 mm (20.5″)
Weight 13.8 kg (32 lb)

Order codes and options

6505B 5 MHz Precision Impedance Analyzer   1J6505B
6510B 10 MHz Precision Impedance Analyzer   1J6510B
6515B 15 MHz Precision Impedance Analyzer   1J6515B
6520B 20 MHz Precision Impedance Analyzer   1J6520B
6530B 30 MHz Precision Impedance Analyzer   1J6530B
6550B 50 MHz Precision Impedance Analyzer   1J6550B
65120B 120 MHz Precision Impedance Analyzer
DC bias option /D1 or /D2 is standard on 65102B.
All units are supplied with user manual, 2 m AC power cable, universal component fixture
(1J1011) and USB memory
Bin handler   /B1
Bin handler ( isolated 24V )   /B2
DC Bias ( 0 to +100mA and 0 to +40V )   /D1
DC Bias ( -40V to +40V )   /D2
Optional Accessories
Certificate of Calibration with results   1JCALRES

Wayne Kerr’s policy is one of continuous development and consequently the product may vary in detail from the description and specification in this publication.