Solartron Analytical – Impedance/Gain-phase Analyzer (FRA) (Model:1260A)

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The model 1260A Impedance/Gain-Phase Analyzer is – without doubt – the most powerful, accurate and flexible Frequency Response Analyzer available today. In daily use by leading researchers wherever measurement integrity and experimental reliability are of paramount importance, the 1260A’s solid reputation is frequently endorsed in published research papers in fields such as:

  • Corrosion studies
  • Battery research and fuel cells
  • Solar cells
  • LCD's
  • Bio-materials
  • Ceramics / composites
  • Electronic component development
  • Civil engineering

Huge frequency range
Spanning 10μHz to 32MHz with 0.015ppm resolution, 1260 provides excellent coverage for virtually all chemical and molecular mechanisms – all in a single instrument.

Unbeatable accuracy
With an accuracy of 0.1%, 0.1o, measurements can be made with complete confidence, and even the most subtle changes in sample behavior detected and quantized.

Noise free analysis
1260 uses Solartron Analytical’s patented single-sine correlation technique, which inherently removes the noise and harmonic distortion which plagues lesser instruments.

  • Frequency resolution: 1 in 65 million (0.015ppm)
  • 0.1%, 0.1° accuracy – unsurpassed by any similar instrument
  • Resolution to 0.001dB, 0.01° – capturing every detail
  • Measures impedances >100MΩ
  • 2-, 3- and 4-terminal measurement configurations
  • Polarization voltage up to ±40.95V
  • Renowned ZPlot software package simplifies experiments and optimizes throughput

When combined with other products from Solartron Analytical’s range, including well-proven application software, 1260 can form the heart of an advanced electrochemical and materials measurement system, to provide superb accuracy, flexibility and reliability – even for the most complex research problems.

Impedance measurement
Virtually every liquid and solid is able to pass current when a voltage is applied to it. If a variable (ac) voltage is applied to the material, the ratio of voltage to current is known as the impedance. The measured impedance varies with the frequency of the applied voltage in a way that is related to the properties of the liquid or solid. This may be due to the physical structure of the material, to chemical processes within it or a combination of both.

The advantages of impedance measurement over other techniques include:

  • Rapid acquisition of data
  • Accurate, repeatable measurements
  • Non-destructive
  • Highly adaptable to a wide variety of different applications.
  • Ability to differentiate effects due to electrodes, diffusion, mass/charge transfer by analysis over different frequency ranges
  • Equivalent circuit/modeling techniques for detailed analysis of results


Generator Voltage Current mode
ac Amplitude ≤10MHz
0 to 3V rms
0 to 1V rms
0 to 60mA rms
0 to 20mA rms
Maximum ac resolution 5mV 100µA
dc bias range ±40.95V ±100mA
Maximum dc resolution 10mV 200µA
Frequency range:10µHz to 32MHz, max resolution: 10µHz frequency (log or lin) ac/dc voltage, ac/dc current  
Sweep types  frequency (log or lin) ac/dc voltage, ac/dc current   
Maximum voltage hi to lo: ±46v peak, lo to ground: ±0.4V peak
Maximum current ±100mA peak
Impedance lo to ground: 100kΩ, <10nF
Connection single BNC, floating shield
Output disable contact closure or TTL logic 0
Input System Voltage (2x) Current 
3 independent analyzers operating in parallel
Ranges 30mV, 300mv, 3V 6µA, 60µA, 600µA, 6mA, 60mA
Maximum resolution 1µV 200pA
Full Scale Peak ±5V ±100mA
Inputs projected to ±46V ±250mA
Connections single/differential BNC single BNC
Shields floating/grounded
Coupling dc or ac (-3dB at 1Hz) dc or ac (-3dB at Hz)
Input impedance
Hi to shield 1Mohm, <35pF ≥600µA range, 1Ω
Shield to ground 10kohm, 330pf <600µA range, 50Ω
Limits of error Ambient temperature 20±10ºC, integration time >200ms.  Data valid for one year after calibration.
Variable frequency, ac amplitude, dc bias
Measured parameters voltage gain, phase, real, imaginary, Z, R, X, Y, G, B, V, I group delay, C, L, Q, D
Power supply 90 to 126v, 198 to 252v, 48 to 65Hz
Power consumption 230VA
Dimensions (w x h x d) 432mm x 176mm x 573mm (17in x 6.93in x 22.56in)
Weight 18kg (40lbs)
Operating temp. rate 0 to 50ºC (32 to 122ºF)
Limit of error Gain-phase measurments Applies to all ranges at >10% full scale

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