Keithley 2110-220 – 5½ Digit Dual-Display USB Multimeter

The Keithley 2110-220 is a 5½ digit dual-display digital multimeter engineered for precision measurements across laboratory and industrial environments. It delivers simultaneous monitoring of two distinct parameters through independent LED displays, enabling efficient parallel data acquisition. A USB 2.0 interface with SCPI command compatibility supports automated test systems, remote instrument control, and direct data logging without additional hardware.

## Technical Specifications

**Measurement Functions**
• DC Voltage: 200 mV to 1000 V
• AC Voltage (True RMS): 200 mV to 750 V
• DC Current: 200 µA to 10 A
• AC Current (True RMS): 200 µA to 10 A
• Resistance (2-wire and 4-wire Kelvin): 200 Ω to 100 MΩ
• Frequency: 3 Hz to 100 kHz
• Temperature: Thermocouple (Type K, J, T, E, R, S, B, N) and RTD (Pt 100, Pt 1000) sensors; Celsius and Fahrenheit scales

**Display Architecture**
• Dual 5½ digit LED displays for independent, simultaneous measurements

**Power and Safety**
• Input: 100–240 VAC RMS, 50/60 Hz
• Safety compliance with relevant standards and CAT ratings

## Key Features

True RMS AC measurement capability ensures accuracy across varied waveform geometries. Four-wire Kelvin resistance measurement eliminates lead resistance errors in precision applications. Frequency measurement from 3 Hz to 100 kHz supports characterization of power supplies, oscillators, and signal sources. Native thermocouple and RTD support eliminates external conditioning circuits for temperature monitoring.

## Typical Applications

Electrical component verification, circuit troubleshooting, automated production testing, thermal system diagnostics, and frequency characterization in embedded systems and power electronics development.

## Compatibility & Integration

USB 2.0 (Full Speed) connectivity integrates with SCPI-compatible test frameworks and data acquisition platforms. Direct measurement logging to host computers enables time-stamped data analysis and statistical trending without intermediate data translation layers.