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 conductivity sensor
Rosemount™ 404 Low Flow Conductivity Sensors

Specs

Dimensions
Cable length: 10 ft (3.1 m) standard; 50 ft (15.2 m) optional
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.
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
Temperature Range
PVC: 32–140 °F (0–60 °C)
Stainless Steel: 32–212 °F (0–100 °C)

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

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