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DescriptionThe DP302-O is a low-cost 3-1/2 digit (1999-count) resistance meter with readout directly in ohms. Four ranges are jumper-selectable: 19.99 Ω, 199.9 Ω, 1.999 kΩ, 19.99 kΩ. It is complete with low-level current excitation and open-resistance indication. The current source is tied to the reference of the A/D converter for true ratiometric operation and immunity to changes in line voltage.
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