GDS-54 Loop-Powered Indicator

Operating power derived from 4-20mA current loop
Square root extract option available (GDS-54SR)
2.5 volt max voltage drop on standard unit; 5 volt with square root option
Large .6 inch tall 4.5 digit LCD readout
Selectable decimal points and polarity sign indicator
2 ranges of ZERO & SPAN adjustment allow calibration in engineering units
3½ active digits plus a selectable "DUMMY 0" least significant digit provide 4½ digits of display
Panel Mount, Explosion Proof, NEMA 4X or PCB packaging is available

The GDS-54 / GDS-54SR Loop Powered Indicators are designed to display 4-20mA variables in their correct engineering units. Each have 3½ active digits plus a "dummy 0" least significant digit which may be DIP switch selected to provide full scale readouts as high as 19990. The 4 decimal points between the digits may also be selected via the front DIP switch. Non- interacting ZERO & SPAN potentiometers, with 2 switch selectable adjustment ranges, allow precise display in any desired engineering unit value.

GDS-54's are wired into the current loop with a "plug in" 2 position terminal strip. The plug side of the terminal strip contains a 6.8 volt zener diode which allows the GDS-54 to be removed without interrupting the loop. Voltage consumption from the loop is 2.5 volts for the GDS-54, or, 5.0 volts for the GDS-54SR which is equipped with jumpers to allow either linear or square root readings.

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