UD2000 - Intelligent Ultrasonic Level Meter

UD2000 operates on the basic principle of using sound waves to determine liquid/solid/slurries level. Ultrasonic pulse signals are transmitted and reflected from the liquid surface. The transmitter 'listens' for reflected signals (echoes) and measures the time-delay between transmitting and receiving. The distance to the sensed material surface is automatically calculated using the computed time-delay. Applications: water distribution system, food and pharmaceutical industry, power plant, barn, steel mill and fiber industries.


  • Automatic power adjustment, gain control and temperature compensation.
  • Latest sensing technique and advanced software features make it suited for various applications.
  • Improved measuring accuracy by latest wave calculation technique.
  • Interference echo suppression features ensure validated measuring.
  • 16-bit D/A conversion improves output accuracy and resolution.
  • Sensor material PTFE is good for corrosive medium.
  • Output: programmable relay output, high accuracy 4 - 20mA analog current output and RS-485 output.


Measuring range: 0.5…5m, 0.5…10m, 0.5…15m
Ultrasonic frequency: 40KHz
Resolution: < 10m, 1mm; ≥ 10m, 1cm
Accuracy: 0.25% of measured, no more than3mm
Beam angle:
Display: 4-digit LCD display
Operating voltage: DC24V 70mA / AC220V 3W
No-load current: ≤8mA
Output: 4…20mA(2-wire) / DC24V
4…20mA(4-wire) / RS-485
Switching output: 2-wire AC220V / 3A
Load resistance: ≤750Ω
Ambient temperature: -25…60℃
Storage temperature: -20…80℃
Pressure rating: 2 bar
Protection class: IP65
Housing material: ABS
Process connection: M70X2 thread