Why Does the Zero Reading Drift on My UNI-T Digital Multimeter Due to Magnetic Fields?

You might notice your UNI-T multimeter showing a non-zero reading even when the probes aren’t touching anything. This zero drift, often caused by nearby magnetic fields, can ruin your measurements and make you question your tool’s accuracy. Magnetic fields from power cables, motors, or even desk lamps create tiny electrical currents inside your meter’s sensitive … Read more

How Do I Get the Clamp Around the Wire for DC Measurement on My UNI-T Digital Multimeter?

Getting the clamp around the wire for DC measurement on your UNI-T multimeter is essential for accurate readings. It matters because a wrong clamp placement can give you a false current value. For DC current, the clamp must encircle only one conductor, not the entire cable. This isolates the magnetic field from the single wire, … Read more