Sanitary Conductivity Sensor - 0.01-10/cm, WFI/USP | Rosemount 403/403VP

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Product Specifications

Manufacturer: Rosemount
Product Number: 403, 403VP
Type: Sanitary Contacting Conductivity Sensor
Cell Constants: 0.01/cm, 0.1/cm, 1.0/cm, 10/cm
Conductivity Range: 0 to 20,000 µS/cm
Temperature Range (403VP): 32 to 221°F (0 to 105°C)
Steam Sterilization (403VP): 275°F (135°C)
Max Pressure: 250 psig (1825 kPa abs)
Process Connection: 1-1/2" or 2" Tri-Clamp sanitary flange
Electrodes (0.01-1.0/cm): Titanium, concentric
Insulator: PCTFE (Neoflon), meets USP Class VI
Flange Material: 316 Stainless Steel
O-Rings: EPDM, meets USP Class VI
Surface Finish: 16 microinch (0.4 µm) Ra
Cable (403): 10 ft or 50 ft integral
Connection (403VP): Variopol 6 quick disconnect
Documents: Product Manual , Product Specs

Product Description

The Rosemount Model 403 and 403VP Endurance sensors are contacting conductivity sensors primarily designed for water-for-injection (WFI) monitoring and food/beverage water purification systems. Cell constants of 0.01, 0.1, 1.0, and 10/cm are available.

Models 403 and 403VP with 0.01-1.0/cm constants feature titanium electrodes, PCTFE insulator, 316 SS flange, and EPDM O-rings meeting USP Class VI. All wetted surfaces have 16 microinch (0.4 µm) Ra finish, compliant with 21CFR177. Each sensor includes certificate of conformance and integrated Pt100 RTD for temperature compensation.

Model 403 has integral cable; Model 403VP features Variopol 6 quick disconnect for easy replacement without rewiring. Sensors with 10/cm constant use graphite electrodes and epoxy body. Operating temperature 32-221°F (0-105°C), pressure 250 psig. VP version is steam sterilizable to 275°F (135°C). Available with 1-1/2" or 2" Tri-Clamp sanitary flange.