Products Description
The Rosemount 400 Contacting Conductivity Sensor, with integral cable, accurately measures electrolytic conductivity in a broad range of applications from high purity water to clean cooling water. The Rosemount 400 conductivity sensor is ideal for use in clean, non-corrosive liquid having less than 20,000 µS/cm.
Features
- Factory-measured cell constant ensures out-of-the-box accuracy and no initial calibration requirements
- Available in cell constants of 0.01, 0.1, and 1.0/cm
- Conductivity sensor designed for direct screw-in insertion into process piping using a front facing 3/4 inch MNPT fitting
- Can alternatively be used with a pipe tee or flow cell in a sidestream installation
- Conductivity sensor has concentric titanium electrodes separated by a PEEK insulator
- EPDM O-ring seals the internal parts of the conductivity sensor from the process liquid
Key Advantages
1. Exceptional Durability and Fouling Resistance
· Constructed with robust materials to withstand industrial environments.
· Four-Electrode Technology is insensitive to coating, fouling, and corrosion on the electrode surfaces, providing stable and accurate readings even in challenging water conditions, significantly reducing maintenance.
2. Wide Measurement Range
· Thanks to the four-electrode technology, a single sensor can cover an extremely wide range from microsiemens per centimeter (μS/cm) to siemens per centimeter (S/cm), eliminating the need to change sensors due to range variations.
3. Accurate Temperature Compensation
· Integrated high-accuracy Pt1000 temperature sensor provides precise temperature measurement for automatic temperature compensation of the conductivity value, ensuring results are referenced to a standard temperature (typically 25°C).
4. Flexible Installation and Easy Maintenance
· Offers various process connections, such as 3/4" NPT thread, flange, sanitary clamp, etc., for easy integration into pipes, tanks, or flow chambers.
· Easy electrode cleaning; some models support an optional air purge for in-situ maintenance.
5. Seamless Integration with Rosemount Transmitters
· When paired with intelligent transmitters like the Rosemount 56/1066, it enables advanced diagnostics, configuration, and data management, optimizing the performance of the entire measurement loop.
Key Performance Specifications
|
Parameter |
Specification |
|
Measurement Principle |
Contacting Conductivity (Four-Electrode or Two-Electrode) |
|
Measurement Range |
0.1 μS/cm ~ 2000 mS/cm (Model and cell constant dependent) |
|
Cell Constant |
Multiple options: e.g., K=0.01/cm, K=0.1/cm, K=1.0/cm |
|
Accuracy |
±0.5% of reading + μS/cm (Typical, with paired transmitter) |
|
Temperature Sensor |
Pt1000 |
|
Temperature Range |
-20°C to +130°C |
|
Pressure Rating |
Up to 10 bar @ 25°C (Connection dependent) |
|
Wetted Materials |
PPS, 316L Stainless Steel, Platinum/Iridium Electrodes |
|
Process Connection |
3/4" NPT, 1" NPT, Flange, Sanitary Clamp, Flow Chamber |
|
Certifications |
ATEX, IECEx, FM (Optional) |
Suitable Applications
· Power Industry: Boiler feedwater, steam condensate, cation/anion exchanger effluent monitoring.
· Pharmaceutical Industry: Purified Water, Water for Injection (WFI) system monitoring.
· Microelectronics Industry: Ultrapure water systems.
· Chemical Industry: Process water, acid/base concentration monitoring, wastewater discharge.
· Water Treatment: Reverse Osmosis (RO) feed/permeate, ion exchange systems, water softening processes.
· Cooling Water Systems: Concentration control in circulating cooling water.
Keywords
Rosemount 400,Contacting Conductivity Sensor,Four-Electrode Conductivity Sensor,Industrial Conductivity Sensor,Water Analysis Sensor,Process Conductivity Measurement,WFI/Purified Water Monitoring,Acid Base Concentration Measurement,Rosemount 56 Transmitter
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