Available in all Gas Cabinet Scales, 4–20 mA circuit board has 2-wire lead which integrates scale with main control system. Board transmits scale signal using current rather than voltage, and innate integrity of current loop permits signal transmission over long distances, past display to main system indicator, without being affected by voltage fluctuations, resistance, or electrical noise. Since 4-20 mA current loop remains constant, control center receives strong signal from load cell.
This story is related to the following:Cylinder Scales