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Low-cost ultrasonic sensors | LVU30A

Low-cost ultrasonic sensors

  • Analog or Setpoint Switched Output
  • Plug and Play Setup—No Targets Needed
  • Easy Setup Software for Windows® (Included)
  • Built-In Temperature/Sound Speed Compensation
  • Up to 32 Sensors on RS485 Multi-Drop Loop
  • Low-Cost
Level Switches and Transmitters - View related products


The LVU30A Series of CE and RoHS compliant low-cost ultrasonic sensors produce detection ranges from as close as 178 mm (7") to greater than 4 m (13'). Incorporating enhanced state-of-the-art ultrasonic technology, the sensors provide precision non-contact distance measurement for factory automation or industrial process control. The LVU30A sensors standout over all other systems because of their affordability, extraordinary ease of operation, genuinely user-friendly software, versatility in user-controlled outputs, and the ability to be set up without using a target. They transmit narrow beam sound pulses at a user-selected rate (software triggered), the process returns echoes, and various outputs depending on the position of the target and programming parameters.

(Typical at 24 Vdc, 22°C, 24 Vdc and 50% RH) Ultrasonic Frequency:
    LVU32A: 150 kHz
    LVU33A: 95 kHz nominal
System Beam Angle: 8 degrees conical
    LVU32A: 102 mm to 2.13 m (4" to 7')
    LVU32A-E: 100 mm to 2.7 m (4" to 9')
    LVU33A: 305 mm to 4.0 m (1 to 13')
    LVU33A-E: 200 mm to 5.5 m (8" to 18')
Resolution: 0.25 mm (0.01")
Echo Detection Sensitivity: User selectable
Power Required: 12 to 24 Vdc (reverse polarity protected), 30 mA, typical with power spike protection
Output Impedance: 100 Ω for both modes of operation
Proportional Mode (Analog Output)
Zero and Span Voltages: Programmable from 0 to 10.25 Vdc (default: 0 to 10.0 Vdc) Optional 4 to 20 mA (-E models)
Loss of Echo Voltage: Programmable from 0 to 10.25 Vdc (default: 10.25 Vdc)
Response Time: 60 ms
Resolution: 1-bit
Setpoint Voltages: 0 or 10.25 Vdc
Setpoint Hysteresis (Programmable): 0 to 75%
Response Time: < 1 ms
Sampling Rate (Programmable): 0.1 to 20 Hz in 0.1 Hz increments (default: 10 Hz)
Target Distance Averaging
Rolling Average: From 1 to 32 samples
Boxcar Average: From 1 to 1024 samples (default: 1 sample)
Loss-of-Echo Time-Out: From 1 to 254 consecutive samples missed before time-out (factory default: 1 sample)
Housing Material: PVC
Connection: 1 NPT
Transducer Surface: Custom PPA
Cable: Shielded 5 conductor, PVC jacket, 22 AWG, 800 mm (72") pigtail [user-extendable for RS485 communication to 1500 m (5000')]
Operating Temperature: -40 to 70°C (-40 to 158°F)
Storage Temperature: -40 to 85°C (-40 to 185°F)
Relative Humidity: 0 to 95%, non-condensing
Enclosure Rating: NEMA 6 (IP68)
Programming Requirements
Communications Converter: RS232 (or USB)/RS485 with automatic send data control (Windows 10, 8, 7 Vista and XP SP3)
Place Order(Specify Model Number)
Part Number/ Desc.
Consult Sales  
Ultrasonic level transmitter/switch 2.13 m (7') range
Consult Sales  
Enhanced ultrasonic level transmitter/switch 2.7 m (9') range
Consult Sales  
Ultrasonic level transmitter/switch 4 m (13') range
Consult Sales  
Enhanced ultrasonic level transmitter/switch 5.5 m (18') range
Consult Sales  
Optional mounting bracket
Consult Sales  
Programming software available free from OMEGA
Availability: 1 week
RS232 to USB interface converter
All amounts shown in EUR, GBP, or USD
Note: Comes complete with operator’s manual and lock nut.
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