Yokogawa Electric Corporation SC400-C-U-1-EA Conductivity Converter

The Yokogawa SC400-C-U-1-EA Conductivity Converter is a four-wire industrial analyzer that converts signals from a conductivity sensor into a 0–20 mA DC output for PLC/DCS integration, enabling continuous monitoring of liquid conductivity or resistivity. It features a 6-digit alphanumeric LCD display, temperature compensation, externally powered operation, and configurable measurement ranges to tailor performance to varying process conditions. Technical specs include a measurement range from 2 µS/cm to 500 mS/cm, a 120 VAC power supply (~8.5 VA), and a sensor-compatible interface designed to work with Yokogawa sensors such as SC4A and SC8SG. Used across water and wastewater treatment, chemical processing, and power generation systems, the SC400-C-U-1-EA enables real-time measurement and control of conductivity and resistivity, supporting process stability and contamination detection.