Digital Clamp meter, Panel description and functions of the clamp meter
Transformer trigger (A): To open the jaws.
Select button (B):To select measurement modes such as current, voltage and resistance.
Relative button (C): To nullify the current reading, and to use a zero-reference value for all subsequent measurements.
COM terminal (D): Common reference input (GROUND).
Transformer jaw (E): To pick up a current signal.
Function selection (F): To choose the parameter to be measured (like alternating current (AC), direct current (DC), AC and DC voltages, resistance and continuity).
Liquid crystal display (G): To show the results of measurement, function symbols and their units, low battery symbols, and max/min value of signals.
Data hold (H): To freeze the current reading on the LCD.
VΩ Input terminal (I): Input for voltage, resistance, continuity, or frequency measurements.