The VF programmable 6-digit panel meter and process signal totalizer displays rates or totals from transducers with outputs of 4 to 20 mA, 0 to 1 mA, or 0 to 10 V. The meter, also available in a ...

While many products can be improved by the incorporation of a digital panel meter, the price of the device often precludes its inclusion. The circuit shown offers a low-cost solution (see the figure).

The Model 525 is a 3.5-digit LED process loop indicator that accepts 1.5, 4-20 and 10-50 mA current-loop signals and only drops 100 mV maximum from the loop. Its flat pack-style enclosure offers a ...

The input-voltage range for a typical voltmeter IC is usually ±200mV, with precision of 3½ or 4½ digits. A sigma-delta panel-meter IC from Maxim (MAX1499) is no exception, but you can easily double ...