LCR Meter ST2840A

Specifications

AC Test Signal Voltage:

• Range: 5mVrms – 20Vrms
• Max Resolution: 1mV, 4-digit input
• Accuracy:
  • ≤2Vrms: 10% of set voltage + 2mV
  • >2Vrms: 10% of set voltage + 5mV

AC Test Signal Current:

• Range: 50µA – 100mA
• Max Resolution: 10µA, 3-digit input
• Accuracy:
  • ALC ON: 10% x current + 20µA
  • ALC OFF: 6% x current + 20µA

Further specifications

• Measurement Speed (f ≥ 10KHz): Fast+: 0.55ms / Fast: 3.3ms / Medium: 90ms / Slow: 220ms
• Equivalent Circuit Modes: Serial and Parallel
• Output Impedance: 30Ω, 100Ω
• Internal DC BIAS Source:
• Voltage/Current Range: 0V - ±10V / 0mA - ±100mA
• Resolution: From 1mV / 10µA
• Accuracy: ≤2V 1% of set voltage + 5mV
• Internal DC BIAS Current Source:
• Current Range: 0 - 2A
• Resolution: 1mA
• Accuracy: 2% of set current + 2mA
• Suitable for this: External DC bias current source ST1778
• 201-point list sweep
• Graphical sweep over 51, 101, 201, 401, or 801 points
• Sweep Parameters: Frequency, Voltage, Current, BIAS Voltage, BIAS Current
• Test Signal Monitor
• Built-in Comparator for 10 bins and Counter
• Control Interfaces: RS232, Handler, USB CDC, USB TMC
• 2 USB Host Ports for Mouse/Keyboard and USB Stick (for saving settings, data, and screenshots)
• Measurement Range Switching: Auto and Manual (Hold)
• Trigger Modes: Internal, External, Manual, and Bus
• Correction Functions: Open, Short, Load
• Power Supply: 100–120V, 198–242V / 47–63Hz
• Dimensions (W/H/D): 430/177/265 mm
• Weight: 11 kg
• CE-certified according to EN 50 191

Measuring Ranges

The measuring ranges can be conveniently selected using the function buttons on the right-hand side of the display.

• LCR: 100mΩ, 1Ω, 10Ω, 20Ω, 50Ω, 100Ω, 200Ω, 500Ω, 1kΩ, 2kΩ, 5kΩ, 10kΩ, 20kΩ,50kΩ, 100kΩ
• RDC: 1Ω, 10Ω, 20Ω, 50Ω, 100Ω, 200Ω, 500Ω, 1kΩ, 2kΩ, 5kΩ, 10kΩ, 20kΩ,50kΩ, 100kΩ

Functional scope and area of application of the measuring bridge

The ST2840A measuring bridge is the most powerful device in its class. This bridge was developed to meet the highest requirements and offers maximum quality of measurement results with a wide range of functions. Measurement results can be determined with an accuracy of up to 0.05%. In addition to this high-precision accuracy, the measuring bridge also offers the possibility of carrying out a measurement cycle in less than 1 millisecond. Fast and accurate measurement results are a prerequisite for highly demanding industrial applications. Frequent areas of application are therefore production lines, such as in the automotive sector or measurement and calibration laboratories, as well as research and development departments.

What is in the box

• ST26011BS Kelvin terminal test clips
• ST26048 4-Terminal-Test-Adapter
• ST26010 Gold-plated short-circuit plate
• Mains connection cable