ENDURANCE® Sanitary Flange Conductivity Sensors
ENDURANCE Model 403 and 403VP sensors are contacting sensors. They are available in cell constants of 0.01, 0.1, 1.0, and 10/cm. The choice of cell constant depends on conductivity. High conductivity samples require larger cell constants.
ENDURANCE Model 403 and 403VP sensors are contacting sensors. They are available in cell constants of 0.01, 0.1, 1.0, and 10/cm. The choice of cell constant depends on conductivity. High conductivity samples require larger cell constants.
Sensors with 0.01, 0.1, and 1.0/cm cell constants have concentric titanium electrodes separated by a PCTFE (Neoflon®) insulator. Ethylene propylene O-rings seal the internal parts of the sensor from the process liquid. The sanitary flange is 316 stainless steel. All wetted plastics and elastomers are compliant with 21CFR177, and all wetted surfaces have a 16 microinch (0.4 micrometer) Ra finish. The sensor is shipped with a certificate of conformance for materials and surface finish.
Electrolytic conductivity is a strong function of temperature, and conductivity readings are typically converted to the value at a reference temperature. A platinum RTD in the inner electrode measures the temperature.