Product Overview

Truevolt digital multimeters (34460A, 34461A, 34465A, 34470A) enable you to get quick insights, measure low-power devices, and maintain calibrated measurements with Keysight’s measurement technology. Truevolt offers a full range of measurement capabilities with higher levels of accuracy, linearity, speed, and resolution.

Key Features

Measure with Unquestioned Truevolt Confidence Truevolt overcomes challenges of modern measurement capabilities such as mixed analog and digital signals, very low power consumption management system, and multiple types of sensors. Keysight's Truevolt digital multimeters (DMMs) address these challenges with modern measurement capabilities that offer minimum measurement intrusiveness. Truevolt DMMs have the smallest noise level and injected current of any DMMs in the industry. Truevolt comes with advanced triggering and digitizing capabilities that help capture fast signals that other DMMs might miss.

PathWave BenchVue Digital Multimeter Software Use the BenchVue DMM software to control digital multimeters remotely and quickly understand measurement results. Connect, control, and display measurements in charts, tables, or histograms to correlate trends. Control multiple digital multimeters remotely through a single computer. Visualize multiple types of instrument measurements simultaneously. Create automated test sequences quickly with minimal instrument knowledge.

Overview of Keysight Truevolt Digital Multimeters

The Truevolt Series 6.5- and 7.5-digit digital multimeters are widely used in high-precision measurement scenarios, with core value derived from their ultra-low noise, high resolution (down to 1 pA), and auto-calibration features that solve demanding precision measurement challenges:
1. Industrial Manufacturing and Precision Equipment Testing
       •  Low-Power Device Measurement:
           --  Supports 1μA range and pA-level resolution to measure minute current variations in low-power devices such as IoT devices and medical implants — for example, standby current in smartwatches or sensor signals.
           --  Auto-calibration compensates for temperature drift, ensuring measurement stability during continuous production operations, suitable for semiconductor packaging testing and battery management system validation. 
       •  Electronic Component Verification: Accurately detects parameter deviations in capacitors, diodes, and conductors through 4-wire resistance measurements (up to 1 GΩ) and high-frequency signal analysis (3 Hz to 300 kHz), improving PCB yield rates.
2. Scientific Research and Laboratory Applications
       •  Material and Sensor Analysis:
           --  Supports RTD/PT100, thermocouple, and thermistor temperature measurements for material thermal property studies or environmental chamber temperature control verification. 
           --  Combines histogram and trend chart visualization tools to analyze sensor signal fluctuations or dynamic parameter changes during chemical reactions.
       •  Mixed-Signal System Debugging: Digital processing (DIG) and advanced triggering functions capture transient signals (e.g., power-on surges or pulse interference in communication protocols), ideal for mixed-signal analysis in new energy inverters or embedded systems.
3. Automated Testing and Quality Control
       •  Integration into Automated Production Lines: 
           --  Interfaces with PLC or LabVIEW systems via LAN/USB/GPIB to enable multi-channel data acquisition — such as motor efficiency testing or batch calibration of power modules.
           --  Paired with PathWave BenchVue software, it enables remote control of multiple instruments and generation of standardized test reports, improving quality inspection efficiency for automotive electronics or aerospace components.

4. Environmental and Energy Monitoring
       •  New Energy System Optimization:
           --  Measures PV panel output voltage (100 mV–1000 V) and inverter efficiency, using high-precision DCV (16 ppm basic accuracy) to locate power loss points in solar farms.
           --  Monitors wind turbine bearing temperatures (via thermocouples) or energy storage battery internal resistance to extend equipment lifespan.
       •  Environmental Parameter Logging: Data logging mode supports long-term storage of barometric pressure and humidity data from weather stations or industrial wastewater pH monitoring results, aiding compliance with environmental regulations.
5. Calibration and Metrology Laboratories
       •  Reference Instrument Calibration: 
           --  Acts as a reference standard to calibrate lower-accuracy multimeters or sensors — for example, traceability of voltage/current parameters in medical equipment (such as ECG machines).
           --  Leverages 7.5-digit resolution (e.g., 34470A) to verify the output stability of precision power supplies or signal generators.

Technical Advantages Enabling Application Scenarios
       •  High Resolution and Low Noise: Truevolt technology minimizes measurement errors, making it ideal for applications involving weak signals, such as nano-scale electronic components or bioelectric signals.
       •  Graphical User Interface: A 4.3-inch color display provides real-time statistical charts to accelerate fault diagnosis — such as analyzing power supply ripple.
       •  Flexible Expansion: Optional high-speed sampling up to 50,000 readings per second or deep memory storage up to 2 million points supports transient signal capture — such as motor startup/shutdown currents.