MAIN FEATURES The PM6303A Automatic RCL Meter is used for precise measurements of resistance, capacitance and inductance. The instrument provides auto-function and auto-ranging facility. It allows fast and high precision measurements of passive components over a wide range. The component to be measured is connected to the instrument via front panel test posts, the PM 9541A four-wire test cable, or the PM 9542A four-terminal test adapter. The Adapter PM 9542SMD or the PM 9540/7WE SMD Tweezers for surface-mounted components are also available. The measurement result, the numerical value, dimension, and the equivalent circuit symbol, is immediately displayed on the large four-digit liquid-crystal display (LCD), which is updated at a rate of two measurements per second. A microprocessor controls the measurement process, computes the measurement value, and transfers the result to the display. In the AUTO mode the dominant parameter, either R, C, or L of the component under test is automatically selected for display. For example, for an inductance with a quality factor Q between 1 and 500, the instrument 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 AUTO mode, eight component parameters can be selected manually by pressing pushbuttons: ■ 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 ■ Phase angle An internal DC BIAS voltage can be added to the measurement voltage for electrolytic capacitors. The PM6303A RCL Meter is especially suited for use in laboratories, for quality control, in service workshops, and for educational purposes.