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White Papers
When making measurements with a digital multimeter (DMM), common errors such as signal interference, external noise, and internal current leakage will cause measurement errors. Understanding the root cause of these errors will help you eliminate and achieve the greatest accuracy possible using a benchtop multimeter.
This white paper helps you to uncover several sources of system cabling and DC voltage measurement errors, such as:
• Radio frequency interference
• Thermal EMF errors
• Noise caused by magnetic fields
• Noise caused by ground loops
• Common mode rejection
• Noise caused by injected current
• Loading errors due to input resistance
• Loading errors due to input bias current
It also covers ways to overcome the above errors to get the accuracy you need.
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