SDM3055 Series Digital Multimeter User Manual
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Math Function
The Multimeter provides five math functions: Statistics, Limits, dBm, dB and Relative. Choose different
math functions to meet different measurement demands. Math functions can only be used in DC
Voltage, AC Voltage, DC Current, AC Current, Resistance, Frequency, Period and Temperature
measurement. Among these functions, dBm and dB are only used in DC Voltage and AC Voltage
measurement.
Press to show the operating menu of math functions on the screen, as shown in the following
diagram.
Diagram 2-60 Math Function Menu of DC Voltage
Diagram 2-57 Math Function Menu of AC Current