product id: 103357
The Rosemount Analytical Model 242 Flow Toroidal Conductivity Sensor is ideal for use in processes where contacting sensors - those with electrodes exposed to the measured solution -- would corrode or become fouled.
The Model 242 Flow Through Toroidal conductivity sensor consists of two toroids surrounding a pipe through which the process liquid flows. One toroid acts as a transmitter and the other as a receiver. Energizing the transmitter toroid induces an electric current in the process solution which induces an electric current in the receiver toroid. The strength of the induced current is directly proportional to the conductivity of the solution.
The Model 242 sensor is available in over two hundred fifty configurations to meet the needs of many applications and installations. Line sizes of 1, 1.5, 2, 3, and 4 inches (25, 40, 50, 80, and 100 mm) are available with both ANSI and DIN compatible flanges. A variety of liner materials and O-rings are available to ensure compatibility with most process liquids.
The Model 242 sensor is easy to install. It fits in the process piping between mounting flanges. Special grounding rings are not needed because the sensor has contact rings built into it. Recessed bolts hold the sensor together to ensure all internal parts stay in perfect alignment. A junction box and a Pt 100 RTD are included. The RTD slips easily into one of the sensor contact rings. There is no need to install a separate thermowell, and temperature measurements are made at the same point as the conductivity measurements.
The Model 242 is not sensitive to flow rate or direction. It does not obstruct the process flow. The sensor is rugged and constructed from chemically resistant materials. All these features make the sensor ideal for applications in mining and metals processing, pulp and paper processing, and the chemical processing industry.
The Model 242 Flow Through Conductivity Sensor is compatible with instrument Models 54eC, 1055, 3081T, 4081T, 5081-T, and Xmt-T.
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