The Keithley 2100/100 is a 6½-digit USB multimeter delivering precision DC and AC measurements across voltage, current, resistance, frequency, and temperature. With 0.0038% basic DC voltage accuracy on the 10V range and 0.013% resistance accuracy on the 10kΩ range, this instrument serves R&D engineers, test engineers, scientists, and students in benchtop and automated test environments.
## Technical Specifications
**Measurement Functions**
• DC and AC voltage (True RMS) to 750V
• DC and AC current (True RMS) to 3.000000A
• Resistance from 100Ω to 100MΩ
• Frequency measurement 3 Hz to 300 kHz
• RTD temperature with ±0.1°C accuracy (-100°C to +100°C) and ±0.2°C (-200°C to +630°C)
**Performance**
• 50 triggered readings/second at 6½ digits via USB
• Over 2000 readings/second at 4½ digits into internal buffer
• Input protection: 1000V (2-wire mode)
• Input bias current: <30pA at 25°C
**Temperature Measurement**
Supports PT100, D100, F100, PT385, and PT3916 RTDs with 0.001°C resolution across two ranges. Maximum lead resistance: 12Ω per lead at 1mA pulsed sensor current.
**Mathematical Functions**
RATIO, percentage, Min/Max, NULL, limits, mX+b, dB, and dBm calculations.
## Key Features
• TMC-compliant USB 2.0 interface with Agilent 34401A command emulation for plug-and-play integration
• 5×7 dot matrix VFD display with three-color annunciators and selectable front/rear inputs
• Rugged construction with removable rubber bumpers for bench, portable, or stacking applications
• Sturdy carrying handle for field use
• 1 PLC or continuous trigger measurement modes
## Software Integration
Included KI-Tool application enables real-time charting and graphing of measurements without programming.
## Typical Applications
Component characterization, calibration verification, manufacturing test, thermal monitoring, and automated test system integration.
