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Metrology-grade performance
Pro digital multimeters (DMMs) deliver 8.5-digit precision, exceptional DC voltage (DCV) linearity, and minimal internal noise. With a sampling rate twice that of our Advanced DMMs, it captures up to 100,000 readings per second, making it well-suited for high-throughput manufacturing environments. Its metrology-grade accuracy ensures precise measurements, making it an ideal choice as a metrology standard in calibration labs, research labs, and demanding applications like power electronics, switching power supplies, and semiconductor testing. Request a quote or order a Keysight Pro DMM today. Need help selecting? Check out the resources below.
Metrology-grade precision
Calibration-lab precision measurements with 8.5-digit resolution and an extremely low 0.01 ppm RMS internal noise.
High-speed measurements
Programmable integration speeds up to 100,000 readings per second ensure high throughput in manufacturing test.
High accuracy, reliability
DCV accuracy up to 4 ppm per year and 0.1 ppm DCV linearity ensure precise and consistent measurements.
High-resolution digitizing
Provides 24-bit digitizer resolution, 12 MHz bandwidth, and a sample rate of 100,000 samples per second.
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Digits of resolution
8 ½
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Basic 1-year DCV accuracy
4 ppm
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Memory
148,000 readings
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Interface
GPIB
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Maximum reading rate
100,000 readings/s
Typical configuration
DM8-class Digital Multimeter
Services and support
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Ensure your test system performs to specification and meets local and global standards.
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Frequently asked questions
Metrology-grade precision in a digital multimeter (DMM) means that the instrument is designed to deliver the highest possible accuracy, stability, and repeatability, often with uncertainties measured in parts per million (ppm). These DMMs are built for environments where even the smallest measurement error can have significant consequences, such as calibration labs, national standards institutes, or advanced manufacturing. They provide traceability to international measurement standards, ensuring results can be trusted and verified globally. Beyond power electronics and semiconductor testing, metrology-grade DMMs are also used for aerospace, medical, and research applications where uncompromising measurement integrity is essential. This level of precision ensures not just accurate readings but long-term confidence in data consistency.
Direct sampling is similar to DCV digitizing in that samples are taken in real-time with each successive sample spaced a specified time interval from the preceding sample. The difference between the two is that direct sampling uses the multimeter’s track-and-hold circuit and has a wider bandwidth input path (12 MHz bandwidth). In addition, direct sampling has less trigger jitter but greater measurement noise than DCV digitizing.
Self-calibration, or autocalibration, is important in a digital multimeter (DMM) because it helps maintain long-term accuracy and reliability without requiring frequent manual calibration. Environmental factors such as temperature, humidity, and component aging can cause drift in measurement accuracy. By performing self-calibration, the DMM internally adjusts its reference levels and compensates for these changes, ensuring measurements remain precise under varying conditions. This feature reduces downtime, lowers maintenance costs, and increases user confidence in the results, especially in applications where accuracy is critical.