YAKOGAWA SC402G-E-1-E SC42-SP34 CONDUCTIVITY & RESISTIVITY CONVERTER WITH CELL

Description:

The Yokogawa SC402G-E-1-E Conductivity & Resistivity Converter with SC42-SP34 sensor is used a complete measurement system designed for continuous online analysis of liquid conductivity and resistivity. The SC402G is a microprocessor-based 4-wire converter that processes signals from the SC42 contacting conductivity sensor and outputs standardized signals for process control. It supports accurate measurement across a wide conductivity range and includes diagnostics, temperature compensation, and control functions.

Applications:

The Yokogawa SC402G-E-1-E system is used in industrial environments for continuous monitoring of conductivity and resistivity in liquid processes. It is commonly deployed in water and wastewater treatment, chemical processing, power generation (boiler and condensate monitoring), and pharmaceutical or high-purity water systems. The system enables real-time measurement, alarm handling, and control for dosing, neutralization, and process optimization.

Technical Specifications:

• Manufacturer: Yokogawa
• Model / Part Number: SC402G-E-1-E + SC42-SP34
• Product Type: Conductivity / Resistivity Converter + Sensor System
• Measurement Range: 2 µS/cm to 500 mS/cm (sensor dependent)
• Temperature Range: -10 to ~200 °C (sensor dependent)
• Power Supply: 100–120 VAC, 50/60 Hz (~10 VA)
• Output Signal: Dual 0/4–20 mA DC (isolated)
• Control Function: Built-in PI control capability
• Display: Digital LCD interface
• Protection Rating: IP65 / NEMA 4X
• Sensor Type: Contacting conductivity (2-electrode)
• Temperature Element: Pt1000 / Pt100 / NTC supported
• Construction: Industrial-grade converter + stainless steel sensor assembly
• Function: Measures conductivity/resistivity and converts to control output signals

Common Replacements:

• Yokogawa SC450G EXAxt Conductivity Analyzer
• Yokogawa FLXA21 / FLXA202 Analyzer
• Yokogawa ISC40