แบรนด์ : TOKYO KEISO



  • The sensor of ultrasonic flowmeter UL330 is clamped on just outside of an existing pipe without any piping modification and time consuming installation work.
  • By adopting a DSP and an AD converters, the flow measurement has been speeded up, and the resistance to bubbles has been improved.
  • Because of the noncontact measurement method, the formation of bubbles and the mixture of metallic ion have been completely prevented.
  • Installing the flowmeter does not cause the pressure loss because of no obstacles in the measuring pipe.
  • The ultrasonic flowmeter is not affected by the pressure or conductivity of fluids.
  • Excellent in long-term stability because of no moving part.
  • Providing the following functions: Forward/backward flow rate display, totalizing display, analog output, pulse output, status output.


Short Specifications

Measuring methodUltrasonic time-flight method, Clamp-on type
Measuring fluidWater and other liquids
Except liquid containing high viscosity fluid, a lot of bubbles and slurries.
Flow velocity1,000 to 2,500 m/s
Fluid kinetic viscosity0.30 to 40.00 mm²/s
Flow rangeMax. 0 to 4,442 m³/h (Max. flow at Dia. 400 mm)
Min. 0 to 0.684 m³/h (Min. flow at Dia. 25 mm)
Fluid temperatureUp to 90°C (Surface temperature of piping)
Accuracy±2% of reading (Flow velocity ≥ 1 m/s, Reynolds number ≥ 10,000)
Flow velocity error: ±2 cm/s (Flow velocity<1 m/s)
Measurable piping materialMetal tube and resin tube (Carbon steel, stainless steel, PP, PVC, PVDF etc.)
Measurable nominal
piping dia.
25A to 400A
Sensor installationReflection type (V method) or penetration type (Z method)
OutputCurrent output: 4 to 20 mA DC (Load resistance: 500Ω or less)
Pulse output: Open collector
Status output: Load rating 30VDC, 50mA, Low level 2V or less
・Status 1: Hold output
・Status 2: Empty pipe detection
・Status 3: Forward or backward flow detection
Display16 letters 2 lines LCD display (with backlight), and 3 LEDs for status indication
Contents: Flow rate, total flow volume, various kinds of status, and flow direction
Low cutoff setting0 to 30% of the maximum flow rate
(Settable in increments of 1%)
Other additional functions1) Analog and pulse simulation output function (For loop check)
2) Forward/backward direction measuring function
Power supply100 to 240VAC 50/60Hz ( 85 to 264VAC 50/60Hz is acceptable)
Power consumption12 VA or less
Converter mounting methodMounted onto the wall or 2 inch pipe
Protection classConverter: IP 65 Jet-proof, Sensor: IP 65 Jet-proof
Sensor signal cableStandard 10 m (Up to 60 m)


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