AST4500/4510 submersible pressure sensor

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The AST4500/4510 submersible pressure sensor from American Sensor Technologies is a high-accuracy, fully stainless steel media isolated pressure transducer intended for use in the measurement of liquids compatible with stainless steel, polyurethane and polyolefin. The pressure sensor is suitable for industrial and water management applications, including liquid tank level, ground water level and depth measurement, petrol fuel tanks, earthen and concrete dams and wastewater canals.

The level sensors are completely sealed for submersion, yet vented through the cable to correct for barometric pressure changes. The welded housing is tested in-house via a helium leak tester to ensure proper protection. The conductors of the cable are also isolated from the outside environment to keep the sensor operational for long-term use.

With a removable nose cone, the AST4500/4510 can also be installed outside the tank through a ¼″ NPT pipe connection. In this configuration, the sensor continuously monitors the tank level through a threaded connection outside the tank, yet remains fully submersible for applications in flood-prone environments or severe washdown conditions.

These submersible pressure transducers are available with voltage or 4-20 mA outputs. The high -strength stainless steel construction contains no silicone oil, no welds and no internal O-rings. Gauge pressure measurements are available in ranges of 0-1 to 0-100 psi.

The pressure sensor’s accuracy is within ±0.25% of the measurement range and it has a protection rating of IP68.