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Stationary Tokyo Keiki UFW-100 ultrasonic flow meter

Main features

The UFW-100 clamp on flow meter

clamp-on-flowmeter-ufw-100Transit times of ultrasonic pulses transmitted in a liquid vary with the flow velocity of the liquid and ultrasonic flow meters utilize this characteristic to measure flow.

Regardless of whether the liquid is electrically conductive or non-conductive, ultrasonic flow meters can measure various types of liquids such as potable water, river water, industrial water, agricultural water, wastewater, seawater and pure water.

Transducers are clamped on to the outside of the pipe so it is not necessary to cut pipes or stop flow to install the meter and there is no pressure loss.

Flow measurements are possible over a wide range from -30m/s to +30m/s.

Economical measurements of flow from 25mm to 600mm can be obtained.

PC configuration software allows for easy operation and the graphical user interface makes data input simple.

Technical specification

Overall specifications

Measured fluids Homogeneous and ultrasonically conductive fluids
(Clean water, waste water, industrial water, river water, sea
water, pure water, etc.)
Temperature range -20°C to +60°C
Turbidity 10000 mg/L or less
Note) No air bubbles
Pipe material Pipes made of materials that allow the stable transmission of
ultrasonic waves, such as steel, stainless steel, cast iron,
ductile cast iron, PVC, FRPM, etc
Diameters DN25mm to DN600mm
Lining None, tar epoxy, mortar, etc.
Measurement
range
Converted to flow velocity: -30 m/s to +30 m/s
Number of
measurement
paths
1 measurement path
Measurement
cycle
1 s
Measurement
method
Ultrasonic pulse transit time difference method

Measurement Performance

DN 25 ~ 40mm ±2.5%(*) of reading, however ±0.025(*) m/s for flow velocities less than 1 m/s
(*) Depending on calibration
DN 50 ~ 90mm ±2.0% of reading, however ±0.020 m/s for flow velocities
less than 1 m/s
DN 100 ~ 250mm ±1.5% of reading, however ±0.015 m/s for flow velocities
less than 1 m/s
DN 300 ~ 600mm ±1.0% of reading, however ±0.010 m/s for flow velocities
less than 1 m/s
Repeatability ±0.5%
Range ability

1 : 300

European
compliance
(CE marking)
Safety: IEC61010-1 2nd Edition
EMC: EN61326-1:2006 + EN61326-2-3:2006

Communications and outputs

Analog output 1 channel Instantaneous flow rate, 4 - 20mA, 125ms update cycle
Pulse output 1 channel, DC48V, 0,4A, insulated photo coupler
USB Flowmeter programming, measurement value display, received signal waveform display, and log data readout using dedicated software, hot plug, up to 3m
RS-485 MODBUS-RTU compatible,1 channel, insulated with following data transfer capability:
Forward flow totalized value, backward flow totalized value, instantaneous flow rate, instantaneous flow velocity, equipment status, etc.
Log function Log contents: Date and time, instantaneous flow rate, instantaneous flow velocity, forward flow totalized value, backward flow totalized value, analog input value, measurement status, error status.
Up to 68000 entries, ring buffer method, USB communications, data retention up to 5 years in the power OFF status
Data setting LCD + 4 keys or USB communication

Downloads

Catalogues
icon Clamp-on Ultrasonic Flowmeter UFW-100 (3.4 MB)
icon Product Data Sheet UFW-100 (1.28 MB)