HOME > Level meter (continuous type) > Ultrasonic wave type level meter YU-52 series

Ultrasonic wave type level meters

YU-52 series
YU-52 series
Multi-functional ultrasonic level meter that can measure levels at long distances.

*It has been discontinued. Corresponding as YU-45 series.

  • For liquid
  • For powder

For connections, screw-in, flange types are available.


Features, keys

  1. Stable measurement at long distance
    Measuring at wide distance range 0.6 to 20 m. Stable measurement as a conical sensor is used.
  2. Various functions for measurements
    By apply correlational processing to the received ultrasonic wave signals, external noise and external ultrasonic wave effects are decreased.
  3. Compact, and lightweight
    The conical sensor means the equipment can have a compact and lightweight design.

Usages, use examples

  • Measures liquids, powders, and granules continuously without contact
  • Measure corrosive and adhesive materials
    Ex.: Monitor city water level, sewage, drain liquid, chemical agents (acids, alkalis), slurry, storage tanks, silos, etc.

Standard specifications


* Measurement distance 0.6 to 20m
Power source required 100 to 240V AC
Power consumption 15 VA
Output Current 4 to 20mA DC X 1 line (load resistance 60Ω)
Relay 4 X 1 line (contact point capacity: 250V AC, 30V DC 5A)
Communication RS485 (Transfer distance: 1200m max)
Measurement precision ±0.25%F.S.
Resolution 1mm
Measuring cycle 1.5 sec.
Operating temperature: -20 to +60 degrees
Case Materials Aluminum (AC4A-F) Painting color: Silver Window: Acrylic
Protection level IP55 or equivalent
Weight Approx. 3,500g

*: The nominal measuring distance is determined by the static water level used as a reflecting mirror. It may become shorter with various measuring conditions.
(Steam, condensation, waves, powder and granulated materials, etc.)


Model name M21-N M21-F
Ultrasonic wave frequency 21kHz
* Beam angle 14°
Connection (material) G1 * JIS5K150A FF (PVC)
Operating temperature -20 to 60 degrees
Materials Epoxy family, PVC
Materials - Aluminum (AC4A-F)
Paint: Munsell 7.5BG6/1.5
Protection level IP53 IP65
Weight Approx. 290g Approx. 1,390g

* The actual measuring range is determined by each measuring condition.For details, contact to our staff.

  Please feel free to inquire us

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