Keithley 2100/120 – 6½-Digit USB Multimeter
The Keithley 2100/120 is a high-precision 6½-digit USB multimeter, offering accurate voltage, current, resistance, and temperature measurements. It features a broad range of functions, including DC/AC voltage and current, 2- and 4-wire resistance, frequency, and diode testing. Its USB interface allows for easy connectivity to a computer for data logging and control. The multimeter is ideal for benchtop testing, automated testing systems, and educational applications.
- Model
- Keithley 2100/120
- Calibration
- Available on request
- Price
- $575
- Status
- In stock
- RFQ ref
- 2100/120
This unit
The Keithley 2100/120 is a 6½-digit USB digital multimeter engineered for high-precision benchtop and automated test system measurements. It delivers 11 primary measurement functions with 8 math capabilities - including RATIO, percentage, Min/Max, NULL, Limits, mX+b, dB, and dBm analysis - supporting diverse electrical characterization workflows. The instrument achieves 0.0038% basic DC voltage accuracy on the 10 V range and 0.013% basic resistance accuracy on the 10 kΩ range, with fully specified accuracies across all functions for ISO-compliant documentation.
Technical Specifications Measurement & Display
6½-digit resolution
11 measurement functions: DC/AC voltage, DC/AC current, 2-wire/4-wire resistance, frequency, continuity, temperature (RTD: PT100, D100, F100, PT385, PT3916), True RMS
8 math functions: RATIO, %, Min/Max, NULL, Limits, mX+b, dB, dBm
Measurement rates: 50 triggered readings/second at 6½ digits via USB; over 2000 readings/second at 4½ digits to internal buffer Electrical Ratings
DC voltage: 0 to 1 kV maximum
AC voltage: 0 to 750 V maximum
DC/AC current: 0 to 3 A maximum
Resistance: 0 to 0.1 GΩ maximum Environmental & Power
Power input: 120 V AC, 50/60 Hz auto-detected
Power consumption: 25 VA
Warm-up requirement: 2 hours for specification compliance
CE compliant, UL listed
Key Features
Selectable front/rear input connectors for flexible test configurations
Rugged construction rated for bench and portable operation
TMC-compliant USB 2.0 interface with SCPI command support
Included LabVIEW driver and Keithley I/O Layer for instrument control
Compatibility & Integration PC software utilities enable direct data integration with Microsoft Excel (Add-In with graphing and settings control) and Microsoft Word (report import). SCPI-compatible programming facilitates automated test sequences and remote data acquisition. USB cable and power cable supplied.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | Frequency measurement: Yes | Voltage / Current Range: 0-1 kV DC, 0-3 A AC/DC, 0-750 V AC |
Keithley 2100/120 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Keithley 2100/120. 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 2100/120 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 2100/120 price
This Keithley 2100/120 is listed at $575. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Keithley 2100/120 calibration cost
NIST-traceable calibration for the Keithley 2100/120 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 →
