Multimeter Calibration Services

Multimeter Calibration Overview

Multimeters are used to diagnose electrical and electronic equipment, to measure critical electrical parameters, and to ensure safety of electrical workers and end users of electrical products. With so much depending on this versatile instrument, multimeter calibration should not be neglected. We routinely calibrate Fluke multimeters, Keysight Multimeters, Extech Multimeters and many more.

Multimeter Calibration Procedures

To perform multimeter calibration, PCS uses the latest Fluke process calibrators to source and measure AC Current, DC Current, AC Voltage, DC Voltage, Capacitance, and Resistance. We calibrate multimeters by testing several reference points throughout the range of each applicable function or “mode”of the meter.

As an example, if we are calibrating a multimeter that measures AC/DC voltage, AC/DC current, and resistance, we would begin by selecting the AC Voltage measurement mode and test several points across the entire AC Voltage scale at known values generated by our Fluke 5522a process calibrator. Once we have collected the “as found” data of the AC voltage function, we make adjustments (if needed) to the bring the multimeter back in tolerance and subsequently obtain and report  the “as left” data of the unit.

After testing the AC voltage scale on the multimeter, we would repeat the same general procedure for DC voltage, AC current, DC current, resistance and capacitance until all functions have been tested. Performing multimeter calibration in this manner guarantees that your equipment is valid across all operational ranges in every mode. If you have a multimeter or process meter that “sources” various functions, we will use at least a 6.5 digit bench meter to measure several points across the range of each mode.