The Agilent/Keysight U3401A is a 4.5-digit dual-display digital multimeter delivering 11 measurement functions and 6 built-in math operations for electronics testing, troubleshooting, and educational applications. The instrument features a bright VFD display enabling simultaneous dual-parameter viewing, with 50,000 counts resolution and a fixed 10 Ω continuity threshold. DC voltage accuracy reaches 0.02%. Current measurements extend to 10 A AC and DC. Frequency measurements reach 500 kHz with 0.01 Hz resolution. Resistance testing covers up to 50 MΩ with 10 mΩ resolution. The meter includes diode testing and AC + DC voltage and current support.
– Technical Specifications
• DC Voltage: 0.02% accuracy
• AC Voltage: Supported
• DC Current: Up to 10 A
• AC Current: Up to 10 A
• AC + DC Voltage: Supported
• AC + DC Current: Supported
• Resistance: Up to 50 MΩ with 10 mΩ resolution
• Frequency: Up to 500 kHz with 0.01 Hz resolution
• Continuity Test: Fixed 10 Ω threshold
• Diode Test: Supported
• Display: 4.5-digit VFD with 50,000 counts resolution
• Input Voltage: 90 VAC to 264 VAC, 50/60 Hz
– Key Features
• Dual VFD display for simultaneous dual readings
• Math functions: dBm (2 Ω to 8000 Ω reference impedance), REL, Min/Max, COMP, Hold, Percentage
• USB connectivity for data logging
• Kensington lock slot for security
• Anti-slip protective bumpers on front and rear panels
• Indoor use design
– Typical Applications
• Electronics testing and troubleshooting
• Educational environments
• Communications and test setups
– Compatibility & Integration
The U3401A operates across standard worldwide AC power distributions (90–264 VAC, 50/60 Hz) and integrates USB connectivity for automated data logging in bench and field measurement scenarios.
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