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Model 1253A Impedance / Gain-Phase Analyzer

Model 1253A Frequency Response Analyzer The 1253A Frequency Response Analyzer (FRA) is an instrument that is capable of meeting today's measurement requirements for dynamic system analysis. Using the single Sine Correlation technique (SSC), it provides precise data relating to the gain and phase between any points in a dynamic system. This instrument enables engineers to perform searching analysis to assess performance of both simple or complex systems.

Features

  • AC amplitude range - 0 to 10.23 V rms
  • Sine, square and triangle waveforms
  • Frequency range 1 mHz to 20 kHz
  • Transfer function accuracy 1%, 1°
Applications
Transfer Function Analysis of Control Systems
Used stand-alone, the 1253A is routinely used to characterize:
  • Automated test systems
  • Power supplies (PSUs)
  • Aircraft instrumentation/system controls
  • Aerodynamic tests
  • Weapons guidance systems
  • Rocket propulsion and vectoring technology
Electrochemistry
The 1253A in conjunction with a model 1287A potentiostat can be used to measure the impedance of electrochemical cells. Typical applications include:
  • Corrosion and inhibitor studies
  • Fuel cell testing and battery research
  • Characterization of thin films and coatings
  • Electroanalytical systems
Materials Science
Impedance measurements of materials and components can be performed with a 1253A plus a 1296A or 1294A Interface. Applications include:
  • Dielectric materials testing (dielectric constant, permittivity, tan-delta, dielectric loss)
  • Characterization of fuel cell components
  • Analysis of curing and polymerization reactions
  • Charge transport in semiconductors, organic crystals and ceramics
  • Bio-impedance tests on live subjects

Specifications

Generator
Waveform Sinusoidal
Frequency range 1 mHz to 20 kHz
Max resolution 1 in 4000
Sweep types  logarithmic, increasing or decreasing
Points per Sweep 2 to 9999
AC Amplitude  10 mV to 10.23 V rms
AC Error ±1% ±10 mV
Distortion < 2%
DC bias range ±10.22 V 
DC bias resolution 20 mV
DC error ±1% ±20 mV
Max Output Hi to Lo (DC bias plus AC) ±15 V
Output impedance (Hi to Lo) 50 Ω±10%
Max Voltage (Lo to Ground) ±15 V
External stop input Contact closure or TTL logic 0
Connectors Front: Floating, 4 mm
Rear: Single BNC, floating shield
Maximum current ±300 mA peak
Output is short circuit protected
Modulator/Demodulator
Input Differential, single BNC
Impedance, Hi or Lo to Ground > 100 kΩ, < 100 pF
Maximum input Hi to Ground: ±350 V peak, 250 v rms
Lo to Ground: ±350 V peak,
Common Mode Rejection, up to 100 Hz > 50 dB
Carrier frequency range 48 Hz to 10 kHz
Phase Shift, carrier input to generator output 48 Hz to 300 Hz: < 3 degrees
300 Hz to 1 kHz: < 1 degree
1 kHz to 10 Hz: < (1 degree + 0.5 degrees/kHz)
Additional analysis error when demodulating, mod frequency = 0.05 carrier frequency < 1%, < 1 degree
Analysis quadrature rejection > 26 dB
Analyzer
Two, independent autoranging input channels with a common analyzer
Range Sensitivity Full Scale pk Input Common Mode Rejection
30 mV 1 µV 45 mV 30 V
300 mV 10 µV 500 mV 30 V
3 V 100 µV 5 V 30 V
30 V 1 mV 50 V 30 V
300 V 10 mV 500 V 30 V
Maximum Input Hi to Ground: ±500 V peak, 300 V rms
Lo to Ground: ±30 V peak
Coupling DC
Connectors Front: Differential, 4 mm
Rear: Differential, single BNC
Impedance, Hi to Lo (Grounded) 1 MΩ ± 2%
Capacitance Front inputs, Hi to Lo (Grounded): < 70pF
Rear inputs, Hi to Lo (Grounded): < 100pF
Common Mode Rejection, up to 100 Hz > 60 dB
Integration Time Range 0.1 to 100,000
Cross channel isolation, < 1 kHz, 1 kΩ across input, Lo grounded > 100 dB
Synchronizer
Connection Differential, BNC
Impedance, Hi or Lo to Ground > 200 kΩ, < 100 pF
Maximum input Hi to Ground: ±350 V peak, 250 v rms
Lo to Ground: ±30 V
Trigger Point Zero crossing
Minimum signal to trigger (< 1 kHz) < -0.6V to > +0.1 V
Maximum time to synchronize < 12 Hz: 6 cycles
> 12 Hz: 500 ms
Additional analyzer error (stable trigger signal) transfer function mode Gain: 1% ± 0.2 %/kHz
Phase: 1 degree ± 0.2 degree/kHz
Data Processing
Scaling Division by vector (a + jb, rΘ), division by last result, magnitude, or vector
History file Maximum size: 400 results
Minimum size: 100 results
Battery discharge time Typically > 1000 hrs
Program Store
Type Battery backed RAM
Max number of programs: 9
Max number of program steps: 320
Type Permanent, keyswitched, protected EEPROM
Max number of programs: 6
Max number of program steps: 100
Plotting
Type Digital, compatible with HPGL graphics language
Parameters X-axis: a, linear scale; f, linear or logarithmic scale
Y-axis: b, r, r(dB), linear scale; Θ degrees
Plot size A4 or 8.5"" x 11"
Interfaces
Serial output Suitable for use with printers and keyboards compatible with RS232 and RS423. Selectable baud rate: 110 to 9600
GPIB Compatible with IEEE488(1978)
Fully programmable talker/listener; switch selectable talker only mode.
Max data rate 1000 bytes/s
Power Requirements
Voltage 90 to 132V, 198 to 264 VAC
Frequency 48 to 65 Hz
Power <  150 VA 
Dimensions
Width 432 mm (17")
Depth 427  mm (18.5 ")
Height 108 mm (4.25")
Weight 10 kg (22 lbs)
Operating Temperature Range 0 to 50ºC (32 to 122ºF)

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