Keithley 2100/230-240 – 6½-Digit USB Multimeter
Keithley Laboratory Measurement Instruments. Resolution: ** 6½ digits.
- Model
- Keithley 2100/230-240
- Calibration
- Available on request
- Price
- $625
- Status
- In stock
- RFQ ref
- 2100/230-240
This unit
The Keithley 2100/230-240 is a 6½-digit USB digital multimeter engineered for precision measurement across benchtop and system applications. It delivers 0.0038% basic DC voltage accuracy on the 10V range and 0.013% resistance accuracy on the 10kΩ range, supporting measurements in DC/AC voltage, DC/AC current, resistance, frequency, period, temperature, diode testing, and continuity. The instrument achieves 50 triggered readings per second at full 6½-digit resolution via USB, or exceeds 2000 readings per second at 4½-digit resolution when using fast measurement mode with internal 2000-reading buffer storage.
Technical Specifications
Resolution: 6½ digits
DC Voltage Accuracy (1-year, 10V range): 0.0038%
Resistance Accuracy (1-year, 10kΩ range): 0.013%
Measurement Rate (USB): 50 triggered readings/s at 6½ digits
Measurement Rate (Fast Mode): >2000 readings/s at 4½ digits into 2000-reading buffer
DC Voltage Ranges: 0.1V, 1V, 10V, 100V, 1000V
AC Voltage Ranges: 0.1V, 1V, 10V, 100V, 750V (True RMS)
DC Current Ranges: 10mA, 100mA, 1A, 3A
AC Current Ranges: 1A, 3A (True RMS)
Resistance Ranges: 100Ω to 100MΩ; maximum 0.1GΩ measurement capability
Frequency Measurement: 3 Hz to 300 kHz
Temperature Measurement: -100°C to +630°C
Input Protection: 1000V on all 2-wire resistance ranges
Math Functions: RATIO, %, Min/Max, NULL, Limits, mX+b, dB, dBm
Operating Temperature: 5°C to 40°C
Key Features
5x7 dot matrix VFD with three-color annunciators
USB 2.0 TMC-compliant interface for SCPI test program control
Selectable front/rear inputs for bench or rack deployment
Rugged construction with removable rubber bumpers and integrated carrying handle
Included PC software utilities for graphing and data export to Microsoft Office, Word, and Excel
Typical Applications This multimeter serves R&D laboratories, system integrators, and field technicians requiring high-resolution DC/AC measurements, component characterization, and automated test sequences via USB control.
Compatibility & Integration USB 2.0 TMC interface supports SCPI programming. Software packages provide integration with Microsoft Office suite and Excel for real-time data visualization and analysis.
Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 3 Hz to 300 kHz | Voltage / Current Range: DC Voltage: 0.1V–1000V |
| AC Voltage | 0.1V–750V |
| DC Current | 10mA–3A |
| AC Current | 1A–3A |
Keithley 2100/230-240 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Keithley 2100/230-240. 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 2100/230-240 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 2100/230-240 price
This Keithley 2100/230-240 is listed at $625. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Keithley 2100/230-240 calibration cost
NIST-traceable calibration for the Keithley 2100/230-240 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 →
