Keithley 2100/220 – 6½-Digit USB Multimeter
The Keithley 2100/220 is a 6½-digit USB multimeter that combines high accuracy with a broad range of functions. It features DC voltage and current measurements, AC voltage and current measurements, resistance measurements, frequency, capacitance, diode test, and temperature measurements. Its USB interface allows for easy connectivity to a computer for data logging and analysis.
- Model
- Keithley 2100/220
- Calibration
- Available on request
- Price
- $600
- Status
- In stock
- RFQ ref
- 2100/220
This unit
The Keithley 2100/220 is a 6½-digit USB multimeter engineered for precision measurements across R&D, test engineering, scientific research, and educational environments. This instrument delivers 0.0038% basic DC voltage accuracy on the 10V range and supports a comprehensive measurement suite including DC/AC voltage and current, two- and four-wire resistance, frequency, period, diode testing, capacitance, and temperature. The vacuum fluorescent display with three-color annunciators provides real-time feedback, while True RMS measurement ensures accurate AC waveform characterization. Built for both benchtop and automated test system integration, the 2100/220 combines laboratory-grade precision with practical affordability and rugged construction rated for bench, portable, and stacking applications.
Technical Specifications
Resolution: 6½ digits
DC Voltage Accuracy (1-year, 10V range): 0.0038% basic
Resistance Accuracy (1-year, 10kΩ range): 0.005% basic
Maximum Input: 1000V all ranges (2-wire input)
Maximum AC Voltage: 750V
Maximum AC/DC Current: 3A
Maximum Resistance Measurement: 0.1GΩ (100MΩ)
True RMS Capable: Yes
Operating Temperature: 5°C to 40°C
Dimensions: 375 mm (L) × 256 mm (W) × 112 mm (H)
Weight: 4.1 kg
Key Features
Measurement Functions: DC voltage, AC voltage, DC current, AC current, two-wire and four-wire resistance, frequency, period, diode test, capacitance, temperature
High-Speed Acquisition: 50 triggered readings/s at 6½ digits via USB; over 2000 readings/s at 4½ digits in internal buffer mode
Math Functions: Ratio, percentage, min/max, NULL, limits, mX+b, dB, and dBm
Display: 5×7 dot matrix vacuum fluorescent display (VFD) with three-color annunciators
Input Selection: Selectable front/rear inputs for bench or rack configurations
Rugged Design: Rubber bumpers for protection in various deployment scenarios
Compatibility & Integration
USB Interface: TMC-compliant USB 2.0 connectivity with SCPI programming support
Software Drivers: LabVIEW driver and Keithley I/O Layer included
PC Integration: KI-Link Add-in for Microsoft Word and Excel graphing and data sharing
Startup Software: KI-Tool utility included
Standards: EN 61326-1, EN 61010-1, IEC 801-2/3/4, RoHS compliant, CE marked, UL listed
Specifications
| Parameter | Value |
|---|---|
| Voltage / Current Range | AC voltage 0-750V, AC/DC current 0-3A, DC voltage 0-1000V |
Keithley 2100/220 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Keithley 2100/220. Calibration covers DC voltage accuracy at all ranges, AC voltage (True RMS) accuracy at 50 Hz, 1 kHz, and 10 kHz, DC current accuracy, resistance accuracy at all decade ranges, frequency accuracy, and diode test voltage. Fluke 87V and 289 also include capacitance and temperature calibration.. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Keithley 2100/220 faults: blown input fuse, worn input jacks, display segment failure, relay contact wear on bench DMMs. Common faults include worn input jacks (banana socket contact wear on the mA and COM terminals), blown input fuses (especially the 440 mA HRC fuse), and display segment failures. Keithley 2000/2001/2002 bench DMMs commonly develop relay contact wear affecting resistance accuracy after extended service.
Keithley 2100/220 price
This Keithley 2100/220 is listed at $600. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Keithley 2100/220 calibration cost
NIST-traceable calibration for the Keithley 2100/220 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers DC voltage accuracy at all ranges, AC voltage (True RMS) accuracy at 50 Hz, 1 kHz, and 10 kHz, DC current accuracy, resistance accuracy at all decade ranges, frequency accuracy, and diode test voltage. Fluke 87V and 289 also include capacitance and temperature calibration.. Turnaround is 1 to 3 business days after receipt. See full calibration details →
