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1255B Frequency Response Analyzer

1255B FRA provides Solartron Analytical accuracy and resolution to 1 MHz.  

Electrochemical Accessories 
Our materials accessories

     SMaRT software

  • Highlights +

    • Wide frequency range from 1 MHz to 10 µHz
    • Sine wave Voltage generator to 3 V RMS and ± 40.95 V DC
    • Two (2) Voltage measurement channels to 5 V peak
    • Able to perform DC potentiotstatic and galvanostatic experiments with 1287A Electrochemical Interface
    • Impedance range from 100 mOhm to 100 TOhm, with the 1296A Dielectric Interface

  • 1255B Frequency Response Analyzer +

    Frequency Response Analyzers
    Frequency Response Analysis (also referred to as Transfer Function Analysis) measures the output spectrum of a system relative to a stimulus, and is used to characterize the dynamics of the system under test. The technique measures the magnitude and phase relationship between output and input waveforms as a function of frequency. The input signals may be from a wide range of sensors including acoustic (microphones/sonar), mechanical (accelerometers/displacement transducers), optical (photodetectors), and electrical (amplifiers).

    Applications that make use of this powerful technique include - electrochemical impedance spectroscopy (EIS), materials analysis, aerospace control system design, electronic amplifier design, power supply design, and vibration analysis.
  • Applications and Software +

    Applications and Software
    The 1255B Frequency Response Analyzer is one of a range of instruments that will meet your needs today and in the future.

    Using the single sine technique the 1255B provides precise measurement of gain and phase between any two points in a system. This fully digital technique is used to assess the performance of both simple and complex systems - electrochemical, materials, electronics, mechanical, and acoustic.

    For over 45 years Solartron Analytical have produced frequency response analyzers, instruments which are regarded throughout the world as industry standards. This unsurpassed knowledge and experience has been used to produce the 1255B, with its 1MHz frequency range and 1 in 65 million frequency resolution.

    The 1255B Frequency Response Analyzer applies the power and sophistication of modern measurement technology; simple in concept, fast and precise in performance, and so easy to use, even by non-technical personnel. 

    Measurement of impedance has become an important tool in the study of electrochemical/biological phenomena and material properties. The 1255B together with a potentiostat such as 1287A can be used in a wide range of applications, including:
    • Corrosion and corrosion protection
    • Properties of organic and inorganic coatings and films
    • Development of solid electrolytes for oxygen sensors
    • Development of novel anode/cathode materials and electrolytes
    • Studies of animal and plant tissue properties
    • Photoelectric effects
    Materials Testing
    When combined with a 1296A Dielectric Interface and temperature test equipment the 1255B can be used to test a wide range of materials, such as:
    • Fuel cell and solid state batteries 
    • Relaxation processes in the molecular dynamics of liquid crystals, polymers and liquids
    • Charge transport in semiconductors, organic crystals, ceramics etc.
    • Analysis of chemical reactions, polymerization and curing processes
    • Novel gas and liquid sensors
    • Characterization of insulating and semiconductor materials
    • Quality control in the production of insulators, printed circuit boards, etc.

    Electronic Testing
    1255B is ideally suited to a wide variety of applications in the field of electronics - from fundamental aspects, such as the characterization of the electrical and mechanical properties of materials, to the development and testing of components and complete circuits.

    Generally these applications require the measurement of transfer functions and group delay over a wide frequency range. In the case of amplifiers or filters, a wide dynamic range coupled with high frequency resolution are also needed to enable the attenuation characteristics to be full defined.

    Mechanical Testing
    Mechanical Tests include aerospace applications such as servo systems, guidance control systems, acoustic systems. 

  • Brochure and Manual +

  • Differentiated Specifications +

    Differentiated Specifications

     Specifications 1260A 1255B 1250E  1253A
    Frequency Range
    32 MHz - 10 µHz
    1 MHz - 10 µHz
    65 kHz - 10 µHz
     20 kHz - 10 µHz
    Voltage and Current
    Voltage Voltage
    Sine, Square, Triangle
    Sine, Square, Triangle 
    Voltage Generator
    Maximum Applied AC Voltage

    3 V RMS (10 MHz)
    1 V RMS (>10 MHz 

    3 V RMS  10 V RMS  10 V RMS 
    Maximum Applied DC Voltage  ±40.95 V ±40.95 V   ±10.22 V  ±10.22 V
    Measurement Capability
    Number of Measurement Channels

    1 Current, 2 Voltage 

    2 Voltage   2 Voltage 2 Voltage 
    Simultaneous Channel Measurement Yes Yes Yes Multiplexed 
    Harmonic Analysis  No No Yes Yes
    Voltage Measurement        
    Best Transfer Function Accuracy 0.2%, 0.2   0.2%, 0.2 0.2%, 0.2  1%, 1 
    Input Protected (Maximum) 46 V   46 V 500 V peak   500 V peak
    Voltage Ranges  30 mV, 300 mV, 3 V  30 mV, 300 mV, 3 V 30 mV, 300 mV, 3 V,
    30V, 300V
    30 mV, 300 mV, 3 V,
    30V, 300V 
    Maximum Measured Voltage 5 V peak   5 V peak 500 V peak  500 V peak 
     Unique Features  Current Generator to

    60 mA rms (10 MHz)
    20 mA rms (>10 MHz) 
    ± 100 mA

    Current Measurement to
    100 mA peak
  • Accessories +

  • Video +

    Watch video demonstrations of the 1255B Frequency Response Analyzer

  • Optional Software +

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