SKU: SENS-1373
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Pro-Range PR-UE3003 Ultrasonic Level Sensor (0-5m Range, 0.5% FS) - RS485 Modbus & 4-20mA Output, IP67, M68 Thread, 1m Cable

₹11,839.00 (Inclusive of all taxes)
Out of Stock

The Pro-Range PR-UE3003 is a non-contact ultrasonic level sensor designed for water and compatible liquid level measurement up to 5 meters. It provides dual RS485 Modbus and 4-20mA analog outputs for seamless integration with industrial PLCs, SCADA systems, and data acquisition units, operating from a wide 7-30V DC supply.

Features

  • High-precision non-contact ultrasonic measurement with 0.5% FS accuracy.
  • Dual output: RS485 Modbus (configurable baud rate) and 4-20mA analog signal.
  • Robust IP67-rated housing with M68*2.0mm mounting thread for industrial installations.
  • Wide 7-30V DC operating voltage with reverse polarity and surge protection.
  • Features automatic temperature compensation for stable readings from -10°C to 50°C.

Out of stock

Description

The PR-UE3003 ultrasonic sensor operates on the time-of-flight principle, emitting high-frequency sound pulses and measuring their echo return time to calculate distance to the liquid surface. This non-contact method ensures no mechanical wear and eliminates contamination risks, making it ideal for clean water, wastewater, and chemical storage applications.

Advanced signal processing algorithms provide stable readings with minimal blind zone, while built-in temperature compensation corrects for speed-of-sound variations across its operating range. The sensor’s robust construction, featuring an IP67 enclosure and industrial-grade connectors, ensures reliable performance in humid, dusty, or outdoor environments common in process control and tank monitoring systems.

Key Features

  • Non-contact ultrasonic sensing principle for maintenance-free operation.
  • Dual communication interfaces: RS485 Modbus RTU and isolated 4-20mA current loop.
  • High ingress protection rating (IP67) for dust and temporary immersion resistance.
  • Integrated reverse polarity, surge, and lightning protection circuits.
  • Wide automatic temperature compensation (-10°C to 50°C) for environmental stability.
  • Factory-configured with multiple selectable baud rates from 1200 to 115200.
  • Optimized performance-to-cost ratio for industrial level monitoring applications.
  • Standard M68*2.0mm thread for direct tank or pipe mounting.

Applications

  • Industrial water tank and reservoir level monitoring in manufacturing plants.
  • Wastewater treatment plant sump and clarifier level control.
  • Chemical storage tank inventory management and leak detection.
  • Irrigation system water source level monitoring and pump control.
  • Food & beverage processing liquid ingredient tank gauging.

Technical Specifications

Model NumberPR-UE3003
Measurement PrincipleUltrasonic (Time-of-Flight)
Measuring Range0 - 5 meters
Accuracy0.5% of Full Scale (FS)
Output SignalsRS485 Modbus RTU, 4-20mA Analog
Supply Voltage7 - 30V DC
Operating Temperature-10°C to +50°C
Ingress Protection (IP)IP67
Mounting ThreadM68*2.0mm
Cable Length1 meter (PVC)
Primary Measured MediumWater (compatible with most liquids)

Frequently Asked Questions

What is the wiring and communication protocol for the RS485 interface?

The RS485 interface uses a standard 2-wire (A/B) connection for half-duplex communication and supports the Modbus RTU protocol. You can configure the device address, baud rate (from 1200 to 115200), parity, and stop bits via Modbus commands for integration with PLCs or SCADA systems.

Can this sensor measure liquids other than water?

Yes, the PR-UE3003 can measure most non-foaming liquids, including chemicals, fuels, and mild aqueous solutions. The ultrasonic principle is suitable for any liquid that reflects sound waves effectively. For highly viscous or aerated fluids, performance may be affected, and a different sensing technology might be recommended.

How do I mount and calibrate the sensor for accurate measurement?

Mount the sensor vertically using its M68*2.0mm thread at the top of the tank, ensuring the sensing face is unobstructed and parallel to the liquid surface. The sensor is typically factory-calibrated. For field calibration, use the 4-20mA output or Modbus commands to set the zero (empty tank) and span (full tank) points based on the actual measured distance.

What is the sensor's blind zone, and how does it affect installation?

The sensor has a small blind zone (non-measurable area) directly below its transducer. For accurate measurement, you must install the sensor so that the minimum measuring distance (the blind zone) is above the highest expected liquid level. Consult the datasheet for the exact blind zone distance corresponding to your model's range.

Package Includes

  • 1 x Pro-Range PR-UE3003 Ultrasonic Level Sensor

Additional Information

Weight 0.276 kg
Dimensions 16 × 12 × 10 cm