• Auto balancing bridge method with widest impedance range
• 4-terminal pair configuration
• Basic accuracy: 0.05 %
• Testfrequency: 300 kHz
• AC test signal programmable to 20 V (optional)
• Measurement speed up to 30 meas/sec.
• 6-digit display resolution
• 22 parameter combinations available
• Output impedance: 30Ω and 100Ω selectable
• 10 point list sweep function
• Sweep analysis function with 960 points
  
• Internal DC bias source ± 40V/100mA (optional)
• External DC bias 40A (optional)
• Automatic level control function (ALC)
• Test signal level monitor function
• 20 control settings files can be saved in internal memory
• Built-in comparator: 10 bins and bin counters
• RS232C, Handler, GPIB (option)
• 2m / 4m cable length extension
• USB interface for external memory of set data
• 320 x 240 dot matrix large-graphic LCD display

Specifications 

Measurement functions

• Test parameter: |Z|, |Y|, C, L, X, B, R, G, D, Q, θ, ESR, Rp (equivalent parallel resistance)
• 22 parameter combinations available
• Equivalents circuit: series, parallel
• Math function: deviation and percent deviation
• Range mode: auto, hold, manual
• Range subsection (9 sects: 10Ω, 30Ω, 100Ω, 300Ω, 1kΩ, 3kΩ, 30kΩ, 100kΩ
• Trigger Mode: internal, manual, external, BUS
• Measuring time (≥1kHz.): fast 32ms,  med 90ms, slow 650ms
• Average rate: 1-255
• Delay time: 0 - 60 s, with step of 1 ms
• Calibration function: Open/Short frequency pint, full frequency correction, load correction
• Measurement terminal: 4 terminal pair
• Test cable length: Standard (0m, 1m), Option (2m, 4m)
• Display mode: direct, ∆, ∆%, bin No, bin counter, list sweep, V/I (voltage/current monitor)
• Display: 320 x 204 dot-matrix graphic LCD display

Test signal

• Frequency: 20 Hz - 300 kHz
• Resulution 10mHz
• Accuracy 0,01%

• Test level range: regular 5 mV to 2 V, Turn-ratio: 5 mV to 4 V (accuracy: 5%, resolution: 1mV) 
• Output impedance: 30 Ω and 100 Ωselectable

Measurement signal mode

• Normal: voltage or current program selectable at the measurement terminals when they are opened or shorted, respectively
• Constant level: Maintain selected voltage or current value at the DUT independent of component impedance change
  

AC measurement level signal

• Standard:
  Normal V:  5mVrms - 2Vrms  /  Normal I:  50μArms - 20mArms
  Constant level V:  10mVrms - 1Vrms  /  Constant level I:  100μArms - 10mArms
• Option ST10301:
  Normal V:  5mVrms - 20Vrms  /  Normal I:  50μArms - 200mArms
  Constant V:   10mVrms - 10Vrms  /  Constant I:  100μArms - 100mArms

DC bias

• Standard: 0V, 1.5V, 2V DC
• ST10301 (option):
  ±0.000 - 4.000 VDC, 1mV resolution
  ±4.002 - 8.000 VDC, 2mV resolution
  ±8.005 - 20.000 VDC, 5mV resolution

Other functions

• List sweep function: 10 frequency or test signal level points can be swept. Single or continuous test mode can be performed. When Option 001 is installed, DC bias level points can also be swept.
  
• Comparator: 10-bin sorting and bin counter for measurement parameters, IN/OUT judgement for sub parameters
• Bin counter: 0 - 999999
• List sweep comparator: HIGH/IN/OUT decision output for each point in the list sweep table
• Input protection: internal circuit protection, when a charged capacitor is connected to the unknown terminals. The maximum capacitor voltage can be calculated: Vmax = 1/√C where: Vmax ≤ 200V C is in Farads
• Memory: 20  instrument setting files can be stored/loaded from the internal non-volatile memory. 40 additional setting files can also be stored/loaded from USB disk (only ST2828)
  
• GPIB, RS232C: All instrument control settings, measured values, comparator limits and list sweep tables can communicate with computer or other instruments through GPIB (option) or RS232C.

General Specifications

• Dimensions: 430 (Width) x 185 (Height) x 490 (Depth) mm
• Weight: 13 kg
• Power: 115 / 230 V ± 10 %, 50/60 Hz
• Power consumption: ≤ 80 VA
  
• Temperature / Humidity: 0°C - 40°C, ≤ 90% RH
• Ambient Temperature: 23°C ± 5°C
• Warm up Time  ≥ 30 minutes
• CE conformity, according EN 50 19

Standard accessories (inclusive)

• 4 terminal Kelvin test clip leads 
• 4-terminal-test-fixture
• Gilded shorting plate
• Power cord
• Operation manual
• Certificate of calibration

Options

• ST26001A - 4-terminal-test-fixture

• ST26008 SMD test fixture
• Power amplifier / DC Bias: Increasing AC test signal up to 20 Vrms/0.2 Arms, extend bias voltage up to ±40V DC
  
• GPIB interface board and cable
• Handler/scanner interface board (nine pairs of high/low limits can be input providing 10-bin sorting for L/C/Z. The handler interface provides the interface with an automatic component sorting machine. All signals are optically isolated.
  
• ST2818 RS232C control software

  Download user manual ST2818 (PDF 1.100 kB)