Loop Powered Indicator

SD201 is a 2-wire, loop powered indicator. It is calibrated at factory to read 0 - 100.0% for a 4 - 20 mA input and easily recalibrated onsite via switches and trimpots. The span and zero pots are non-interactive and provide resolutions better than 1 count. Decimal point positions are switch selectable. It is powered directly by the 4 - 20 mA input loop, dropping less than 1 volt across the input terminals, which is remarkable for such instruments. The indicator provides a digital readout directly proportional to the current input on a 3½-digit LCD display. SD201 is accurate to 0.025%. This indicator is optionally available in a field-mount enclosure that is certified flameproof for gas groups I, IIA and IIB with IP65 rating.