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Rosemount™ 404 Low Flow Conductivity Sensors
rosemount 404 conductivity sensor
The Rosemount 404 Low Flow Conductivity Sensor is intended to measure conductivity in clean water.
The conductivity sensor and flow cell are combined into a single package. A small holdup volume of the flow cell allows for rapid response to sudden changes in conductivity and temperature.
Rosemount™ 404 Low Flow Conductivity Sensors

Specs

Temperature Range
PVC: 32–140 °F (0–60 °C)
Stainless Steel: 32–212 °F (0–100 °C)
Dimensions
Cable length: 10 ft (3.1 m) standard; 50 ft (15.2 m) optional
Maximum Pressure
PVC: 100 (791 kPa [abs]) at 77 °F (25 °C); 20 psig (239 [kPa abs]) at 140 °F (60 °C)
Stainless Steel: 100 psig (791 kPa [abs]) maximum
Materials of Construction
Wetted Materials:
Electrodes: Titanium
Insulator: Glass filled PEEK
Body & Fittings: PVC - Polyethylene / Stainless Steel
O-Ring: EPDM
All wetted surfaces have 15 micro in. (0.4 micrometer) Ra finish.

Features

  • Conductivity sensor and flow cell combined in a single body
  • Fast response to changes in conductivity and temperature
  • No initial calibration requirements - factory-measured cell constant ensures out-of-the-box accuracy
  • Selectable cell constants of 0.01, 0.10/cm
  • EPDM O-ring seals internal parts of conductivity sensor from the process liquid