Rosemount 400-12 Endurance Conductivity Sensor

The Rosemount 400-12 Endurance Conductivity Sensor is engineered for precise measurement of electrolytic conductivity in clean, non-corrosive liquids with conductivity levels up to 20,000 µS/cm. ([eci.us](https://www.eci.us/products/measurement-instrumentation/liquid-analysis/liquid-analysis-sensors/rosemount-400vp-contacting-conductivity-sensor/?utm_source=openai))

Key Features

• Factory-Measured Cell Constant: Ensures immediate accuracy upon installation, eliminating the need for initial calibration. ([eci.us](https://www.eci.us/products/measurement-instrumentation/liquid-analysis/liquid-analysis-sensors/rosemount-400vp-contacting-conductivity-sensor/?utm_source=openai))
• Direct Insertion Design: Equipped with a front-facing ¾-inch male national pipe thread (MNPT) fitting for straightforward installation into process piping. ([eci.us](https://www.eci.us/products/measurement-instrumentation/liquid-analysis/liquid-analysis-sensors/rosemount-400vp-contacting-conductivity-sensor/?utm_source=openai))
• Versatile Installation Options: Suitable for direct insertion or sidestream installations using a pipe tee or flow cell. ([eci.us](https://www.eci.us/products/measurement-instrumentation/liquid-analysis/liquid-analysis-sensors/rosemount-400vp-contacting-conductivity-sensor/?utm_source=openai))
• Durable Construction: Features concentric titanium electrodes separated by a PEEK insulator, with a 316 stainless steel body and EPDM O-ring, ensuring longevity and reliability. ([eci.us](https://www.eci.us/products/measurement-instrumentation/liquid-analysis/liquid-analysis-sensors/rosemount-400vp-contacting-conductivity-sensor/?utm_source=openai))
• High-Temperature Capability: Optional high-temperature version available, capable of operating up to 392°F (200°C) with an integral junction box. ([eci.us](https://www.eci.us/products/measurement-instrumentation/liquid-analysis/liquid-analysis-sensors/rosemount-400vp-contacting-conductivity-sensor/?utm_source=openai))

Specifications

• Model Number: 400-12
• Cell Constant: 0.1/cm ([midlandsci.com](https://www.midlandsci.com/652169.html?utm_source=openai))
• Maximum Temperature: 221°F (105°C) ([midlandsci.com](https://www.midlandsci.com/652169.html?utm_source=openai))
• Maximum Pressure: 250 psig (1825 kPa) ([midlandsci.com](https://www.midlandsci.com/652169.html?utm_source=openai))
• Materials:
  • Electrodes: Titanium
  • Insulator: Glass-filled PEEK
  • Body: 316 Stainless Steel
  • O-Ring: Viton®
• Connection Type: Variopol (VP6) quick disconnect fitting ([midlandsci.com](https://www.midlandsci.com/652169.html?utm_source=openai))

The Rosemount 400-12 Endurance Conductivity Sensor is an ideal solution for industries requiring accurate and reliable conductivity measurements in clean, non-corrosive liquid applications.