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Flowmeter For CHEMICALS

Ultrasonic Flowmeter

USF200S Series



Selection of optional display can be mounted at your control panel if required. Find option


  • PFA Ultrasonic flowmeter fits flow measuremnt of extremely small amount of flow.
  • Low cost version letting it have no display function.
  • Various kinds of the settings can be made by such specialized software as shwon in option.
  • Due to the load of RS-485 communicating function up to 16 units can be communicated.


  • Pure water

Measuring range/Pipe size

Measuring range Pipe size
0 ~ 300mL/min 1/4(φ6.35×4.35)
5 ~ 5000mL/min 3/8(φ9.52×6.35)


Measurement subject Liquid
Electrical Part Input signals Integrating value resetting input and reset input at zero
Output signals Measuring output DC4-20mA
Frequency output
Integrating pulse output
Comparative output To select either upper limit or lower limit of inst. and int.flowrates.
Rating of open collector output MAX100mA MAX+35V
Power supply DC24V Regular time : 100mA At startup : 600mA
Wetted mtreials NEW PFA

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Information in this document was correct at the time of printing; however, specifications are subject to change as Toflo Corporation’s continuous improvement processes establish new capabilities.