The Yokogawa UT320-00 is a digital two-wire ultrasonic transmitter from the highly regarded YEWFLO series. It is designed for non-contact, clamp-on measurement of liquid flow in full pipes. This model represents a specific, standard configuration within the UT320 product line.
Key Features and Specifications (Typical for UT320-00)
Measurement Principle: Transit-time difference ultrasonic flow measurement.
Mounting: Clamp-on (External, non-intrusive). Sensors are mounted externally on the pipe.
Output Signal:
Analog Output: One isolated 4-20 mA DC output, linearly proportional to flow rate.
Digital Communication: HART® protocol (standard) for configuration and diagnostics.
Power Supply: Loop-powered: 12 to 30 V DC (standard for two-wire instruments), typically sourced from the 4-20 mA loop.
Display: Integral LCD display (standard) showing flow rate, totalizer, and diagnostics.
Input (Measured Variable): Liquid flow velocity, which is converted to volumetric flow rate based on entered pipe parameters.
Accuracy: Typically ±1.0% of reading (or ±0.5% depending on sensor type and installation conditions), subject to proper calibration and setup.
Pipe Compatibility: Suitable for a wide range of pipe materials (metal, plastic) and sizes (diameters from approx. 12 mm to 6500 mm, depending on sensor model).
Liquid Compatibility: Works with most homogeneous liquids that can transmit ultrasound, such as water, chemicals, oils, and sewage.
Enclosure Rating: Typically IP67 or NEMA 4X, making it suitable for harsh outdoor and industrial environments.