Rosemount Analytical 402 / 402VP Endurance Conductivity Sensor
Starting at $1,210.00

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  • Retractable
  • Cell constants: 0.01, 0.1, 1.0, and 10/cm
  • 1-1/4 inch NPT process connection
  • Temperature: 32 to 212°F (0 to 100°C)
  • Pressure: 200 psig (1481 kPa abs) max
  • Retraction pressure: 64 psig (542 kPa abs) max
  • Wetted materials (0.01, 0.1, and 1.0/cm cells):
    • Electrodes; titanium
    • Sensor tube; 316 stainless steel
    • Insulator; PEEK
    • O-rings; EPDM
    • Washer; Neoprene

The Rosemount Analytical Model 402 Endurance Conductivity Sensor are retractable; they can be removed from the process piping without shutting down and draining the line. Maximum retraction pressure is 64 psig (542 kPa abs). The sensor fits through a 1-1/4 inch full-port ball valve. Order the retraction assembly, which includes the ball valve, pipe nipple, packing adapter, and clamp to position the sensor, as an option.

ENDURANCE sensors are contacting conductivity 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. Consult the analyzer Product Data Sheet for recommended ranges and accuracy.

Sensors with 0.01, 0.1 and 1.0/cm cell constants have concentric titanium electrodes separated by a PEEK insulator. EPDM O-rings seal the internal parts of the sensor from the process liquid. A platinum RTD in the center electrode measures the solution temperature. Electrolytic conductivity is a strong function of temperature. The temperature measurement is used for correcting the conductivity readings to a reference temperature.

Sensors with 10/cm cell constants have graphite electrodes and an epoxy body. The RTD is enclosed in a titanium capsule protruding from the end of the sensor.


Rosemount Analytical 23747-00 Connecting Cable
Connecting cable terminated for Rosemount Analytical sensors
In Stock
Rosemount Analytical VP6 Cable
VP6 conductivity, amperometric cable for the Rosemount Analytical 400 series, available in 2.25 to 100ft lengths


Please consider these optional accessories.

Rosemount Analytical 23555-00 Junction Box
Compatible with models 54, 5081, 1055 & Xmt preamplifiers
Rosemount Analytical Ball Valve Assembly
Ball valve assembly in 316 SS
Rosemount Analytical 99CC Calibration Certificate
One certificate per lot at standard factory ranges only, includes the model, serial and/or tag numbers (does not include actual test data)
Rosemount Analytical Electronic Calibration
Certificate for specific unit, includes model, serial and/or tag numbers, test standards, NIST report numbers, & the actual test data
Rosemount Analytical Certificate of Origin
Original certificate of origin with chamber of commerce stamp