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UT351-01

The Yokogawa UT351-01 is a digital ultrasonic level transmitter designed for non-contact, continuous level measurement of liquids and solids in storage tanks, process vessels, and open channels.

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Key Features and Specifications
Measurement Principle: Non-contact ultrasonic (time-of-flight).

Output Signal:

Analog Output: One 4-20 mA DC output, linearly proportional to level or distance.

Digital Communication: HART® protocol is typically standard for configuration and diagnostics.

Power Supply: Two-wire, loop-powered: 12 to 30 V DC (standard), powered via the 4-20 mA loop.

Display: Integral LCD display showing level, distance, and diagnostic information.

Measuring Range: Varies by specific model and transducer size, but typically up to 15 meters (approx. 49 feet) for liquids.

Accuracy: Typically ±0.25% of full scale or better, depending on conditions.

Process Connection: Typically a 2-inch NPT thread or a flange mount for installation.

Enclosure Rating: Typically IP67 or NEMA 4X, providing excellent protection against dust and water ingress for outdoor and harsh industrial environments.

Key Features:

Non-contact measurement: Ideal for corrosive, abrasive, or sticky materials.

Built-in temperature compensation for accurate readings in varying ambient conditions.

Easy calibration and setup via the keypad or HART communicator.

False echo suppression software to ignore fixed obstructions inside the tank.