DYNALCO LMD120A Current Loop- Powered Digital Indicator

Dynalco Digital Indicator Panel Meter - LMD-120A
The Dynalco Digital Indicator Panel Meter LMD-120A features a rugged, sealed, and spray-proof 3 3/8 inches diameter housing for indoor or outdoor applications. It displays pressure, temperature, or any other variable proportional to the 4-20 mA input. This panel meter is powered by the 4–20 mA signal loop input; requires no external AC or DC.

PRODUCT FEATURES:
Standard SAE gasketed and spray-proof case; fits panels with 33/8 in. openings
High noise immunity; no power line or supply connections
Liquid crystal display (LCD); no outdoor fadeout; 0.4 in. high digits
Ease of calibration; field-adjustable to any readout range by integral multiturn zero and span potentiometers, decimal point switches, and fifth-digit fixed zero switch
Bipolar display; positive and negative readouts
Rugged and reliable
 
PRODUCT SPECIFICATIONS:
Dynalco Part No.: LMD-120A
Description: Current Loop-Powered Digital Indicator
Input Signal: 4 to 20 mA
Display: 3½ digits (1 digit resolution) or 4½ digits (10-digit resolution), bipolar. The display can be extended to 4½ digits by entering a fixed zero in the least significant digit position via a user-selectable switch
Span and Zero Adjust: 25-turn potentio-meters permit adjustment of the display to any desired span from 100 up to 2000 units and for any required initial reading from –1000 to +1000. (4 mA input for initial reading; 20 mA input for maximum indication.)
Typical calibrations: 0 to +1999, –500 to +500, +800 to +1000, etc. The fifth digit (dummy zero) can be turned on for readouts up to +19990
Loop Burden: Less than 2 volts, i.e. 100 Ohms at 20 mA
Environment Temperature: 0°F to +165°F (–18°C to +74°C)
Weight: l lb, maximum (0.454 kg)