HOME > Level meter (continuous type) > Ultrasonic wave type level meter YU-01/05/03 series

Ultrasonic wave type level meters

YU-01/05 series
YU-01/05/03 (2-line system) series
Compact and corrosion proof ultrasonic wave level meter.

Can continuously detect 2 levels (upper and lower limits), non-contact.
Compact and excellent corrosion resistance.

  • For liquid

Screw-in types, flange types, and tubes with wave guides are available for connections.


Features, keys

  1. Built into a compact resin body, offers excellent corrosion resistance.
  2. Easy to insert and detach cables because waterproof connectors are used.
  3. Computer output (RS-232C) is equipped as standard.


YU-01, YU-05 and YU-03
Select according to the required measurable distance
0.25 to 4m ⇒ YU-01
0.5 to 9.99m ⇒ YU-05
0.3 to 6.5m ⇒ YU-03 (2-line system)

Select from the 3 below to match your connection method.

Model name YU-01 YU-05 YU-03 YU-01F YU-05F YU-03F YU-01P YU-05P YU-03P

Connection Standard screw-in type
Flange type
*3 JIS5K50A or equivalent
With wave guide tube
*3 JIS5K80A or equivalent
Materials Polypropylene *3 PVC *3 PVC
Weight Approx. 350g Approx. 800g Approx. 1300g (L=300mm)

* Can be altered if required.


Usages, use examples

  • Detect and measure liquid levels 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

Model name YU-01 YU-05 YU-03
*1 Measurement distance 0.25 to 4m 0.5 to 9.99m 0.6 to 6.5m
Power source required 12 to 24V DC 16 to 32V DC
Power consumption 3W 0.64W
Current output 4 to 20mA DC
(01/05: Load resistance 500Ω 03:500Ω)
01/05 only: Alarm output NPN open collector, one point each for upper and lower limits
Isolation (30V DC 0.1A)
RS232C (9600bps)
Ultrasonic wave frequency 100kHz 50kHz
*2 beam angle 14°
Measurement precision ±0.25% F.S. or YU-01: ±1cm, YU-05: ±2.5cm, YU-03: ±1.7cm, whichever larger
Internal resolution 1mm
(01/05: Display resolution is 1cm Set resolution is 1cm)
(03: Display resection is 1mm Set resolution is 1mm)
Operating temperature: -20 to 60 degrees
Storage temperature -30 to 80 degrees
Operating pressure Atmospheric pressure
Main housing
Materials Polypropylene
Material of wave send and receive surface Polypropylene
Protection level IP65
Wiring cable 01/05: 8-conductive (0.3m2) with 10m shielded wire, connects/disconnects with waterproof connectors
03: 2-conductive (0.75m2) with 10m shielded wire connects/disconnects with waterproof connectors

* 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, etc.)

When a wave-guide is installed, the measuring distance may be made shorter by changing the wave-guide length.
*2: The actual measuring range is determined by each measuring condition.For details, contact to our staff.

  Please feel free to inquire us

  • Inquiries
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