The Keysight 34450A is a 5.5-digit benchtop digital multimeter engineered for industrial test, educational, and automated data acquisition systems. It delivers 190 readings/second with 50,000-point internal memory capable of 14-hour logging sessions, True RMS measurement across voltage and current, and precision DC accuracy of 0.015% + 0.005%. The ultra-bright OLED dual display, USB 2.0 connectivity, and comprehensive function set—including 2-wire/4-wire resistance, frequency to 300 kHz, capacitance to 10 mF, and temperature measurement—make it suitable for field service, production testing, and bench troubleshooting.
Technical Specifications
Measurement Functions
• DC and AC voltage (True RMS)
• DC and AC current (True RMS)
• 2-wire and 4-wire resistance
• Frequency (20 Hz to 300 kHz for voltage; 20 Hz to 10 kHz for current)
• Capacitance (1 nF to 10 mF)
• Diode and continuity testing
• Temperature measurement
Resolution & Accuracy
• 5.5-digit display resolution
• DC voltage: 0.015% + 0.005% range accuracy
• Resistance (2-wire/4-wire): 0.050% + 0.008% (100 Ω range example)
• Frequency: 0.02% + 3 counts
• Capacitance: 1% + 0.5 counts (typical)
Input Protection & Measurement Limits
• Maximum voltage: 1000 VDC / 750 VAC (1000 Vpk HI to LO; 500 Vpk LO to Ground)
• Transient overvoltage withstand: 2500 Vpk
• Maximum current input: 100 mA (rms)
• Input impedance: 10 MΩ or >10 GΩ (range-dependent)
• IEC Category II (300 VAC mains)
Data Logging
• Internal memory: 50,000 data points
• Continuous logging: Up to 14 hours
• Built-in histogram and statistical functions
– Key Features
• Reading rate up to 190/second for time-critical measurements
• Ultra-bright OLED display with dual-reading capability
• 100 MΩ maximum resistance measurement at 100 nA
• AC measurements across 20 Hz–100 kHz bandwidth
• USB 2.0 for direct data transfer and remote control
– Typical Applications
• Automated test equipment and data logging systems
• Component and circuit verification
• Preventive maintenance in industrial settings
• Electrical lab instruction and student experiments
• Field troubleshooting and fault detection
– Compatibility & Integration
USB 2.0 connectivity enables integration with standard test benches and computer-based measurement systems.
