High Sensitivity Ultrasonic Level Sensor

IRU-9400

Greater Sensitivity For Indoor Use

The IRU-9400 ultrasonic level sensor features a highly sensitive transducer for detecting challenging targets, including non-reflective and soft surfaces. Designed for indoor applications, this sensor provides accurate level measurement and object detection with a versatile range of 6 inches to 35 feet.

Versatile Measurement Range

The IRU-9400 sensor covers a broad 0.5 to 35 ft range, reducing the need for complex mounting setups. Its high-frequency transducer (50 kHz) ensures precise readings across various applications.

Advanced Sensitivity for Difficult Targets

Equipped with a more sensitive transducer, the IRU-9400 effectively detects non-reflective and soft materials, making it ideal for liquid level monitoring and object detection indoors. This model is not sealed for harsh environments and is recommended for dust-free indoor use.

Applications & Object Detection

With its superior frequency range and high sensitivity, the IRU-9400 is well-suited for level measurement, industrial automation, and object detection.

  • Measuring Range: 0.5 to 35 ft.
  • Transducer Sensitivity: Detects difficult targets, including soft and non-reflective surfaces.
  • Accuracy: ±0.25% of detected range.
  • Response Time: Up to 50 Hz (every 20 ms).
  • Mounting Options: 2" MNPT or ¾" NPT.
  • Electrical Supply: 12-28 VDC.
  • Output Options: 4-20mA, 0-2.5V/0-5V selectable, and NPN trip points.
  • Temperature Range: -40 to 140°F with internal temperature compensation.
  • Protection Rating: NEMA 12 (indoor-rated).

  • Operating Range:
    • 0.50 – 35 ft. (0.15 – 10.67 m) for liquid and solid targets
    • 0.50 – 17.5 ft. (0.15 – 5.33 m) for bulk solids
  • Beam Pattern: 9º off axis
  • Internal Temperature Compensation
  • Frequency: 50 kHz
  • Accuracy: ±0.25% of detected range
  • Resolution: 0.1 in. (2.5 mm)
  • Response Time: Programmable (73 ms minimum @ 35 ft.)
  • Enclosure Protection: NEMA 12
  • Operating/Compensated Temperature Range: -20° to 140°F (-30° to 60°C)
  • Total Current Draw: 75 mA @ 24 VDC
  • Operational Supply Voltage: 12-28 VDC
  • Excitation Supply Voltage: 5 VDC minimum
  • Programming Supply Voltage:
    • RST-3002: 15-28 VDC
    • RS-232: 15-28 VDC
  • Wiring Connection:
    • 3, 5, or 8-conductor shielded cable
    • 4, 5, or 8-pin micro connector
  • Output:
    • 4-20 mA
    • 4-20 mA with (2) NPN outputs
    • 0-2.5 V/0-5 V (selectable via software)
    • RS-232 option (with voltage output only)
  • Excitation Input for Datalogging: With voltage output only
  • PC/PET Upper Housing
  • Transducer Type: Electrostatic, with open face & 304 SS grill
  • Interface with RST-3002 Programmer
    • (purchase separately – not needed for “S” option)
    • Interfaces with 32- and 64-bit operating systems
  • User selected units of measure
  • CSA General Purpose
What is the measuring range of the IRU-9400?

The IRU-9400 has a measurement range of 0.5 to 35 feet, making it suitable for various indoor level monitoring and object detection applications.

This sensor is designed to detect non-reflective and soft surfaces, such as liquids and low-density materials, thanks to its highly sensitive transducer.

No, the IRU-9400 is rated NEMA 12, meaning it is intended for indoor, dust-free environments. It is not sealed for exposure to moisture, dust, or extreme conditions.

CERTIFICATION

CSA – General

MOUNT

2", 3/4"

OUTPUT

4-20 mA, Voltage

RANGE

31' – 50', 6" – 35'

INDUSTRY

Food & Beverage, Industrial Automation

ENCLOSURE PROTECTION

NEMA 12