The PM 6303 RCL meter is used for measurements of resistances, capacitances and inductances. Providing auto-function and auto-ranging facility the instrument allows fast and high precision measurements of passive components over a wide range. The component under test is directly connected to the instrument, either via a two-terminal test fixture, a four-wire test cable or a four-terminal test adapter. The measurement result, namely numerical value, dimension and the equivalent-circuit symbol, is immediately displayed on a large 4-digit liquid- crystal display (LCD), updated at a rate of two measurements per second. A microprocessor controls the measurement process, computates the measurement value and transfers the result to the display. In the RCL AUTO mode the dominant component, either R, C or L of the component under test is automatically selected for display. RCL AUTO is also the default mode of the instrument after power- on. For an inductance e.g. with quality factor 500 > Q > 1 the instruments indicates the measurement value of the series inductance and as equivalent-circuit symbol the series connection of a resistance and an inductance. In addition to the RCL AUTO mode with display of the dominating component 8 further parameters can be selected by 2 pushbuttons providing a stepping function, whereby the appropriate parameter is marked by a LED: Quality factor Q, dissipation factor D, parallel resistance Rp* series resistance Rs, impedance Z, parallel capacitance Cp or parallel inductance Lp, series capacitance Cs or series inductance Ls* series capacitance, internally biased Cs (2 V BIAS), The instrument is especially suited for use in laboratories, for quality control, service workshops and for education purposes.