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Flow Guides wave Type Clamp-on Ultrasonic FlowmeterGST / SFC011GS


*Specifications are subject to change without prior notice.

GST/SFC011GS is a clamp-on ultrasonic flowmeter for small diameter piping.
There is no need for additional piping work because flow rate can be measured just by sandwiching the existing tube. The piping is virtually kept clean.
Most suitable for processes requiring cleanliness such as Semiconductor manufacturing equipment, etc.

 · Detector: GST
 · Converter: SFC011GS


  • · Clamp-On

    Flow rate can be measured just by sandwiching the existing tube.
    Essentially clean because it does not contact the piping.

  • · Energy saving and space saving

    Simultaneous measurement of up to 6 lines with one SFC011GS.
    Multiple units can be connected to each other (No need for crossover wiring).

  • · High-speed operation

    30 ms arithmetic processing.

  • · Zero adjustment

    By performing zero adjustment before measurement, it can be started under the optimum conditions for the fluid to be measured.

  • · Abundant functions

    · 7Seg LED (red, 4 digits) indicates instantaneous flow rate and status.
    · Various analog outputs of instantaneous flow rate (select according to output types).
    · Frequency output (1 kHz F.S.), error output, instantaneous flow rate upper/lower limit alarm,
      integrated flow rate output,and integrated flow rate upper limit alarm (open collector).
    · Parameter settings and flow rate data acquisition are available via RS-485 communication.
    · RS-485 communication converter (sold separately) is required.

  • · Conformity standards

    · EMC conformity standards: CISPR11:2009+A1:2010 Group1 ClassA, EN61326-2-3:2013
    · RoHS2 compliance

Short Specifications


Model GST
Fluid Purified water, photoresist, low-K material, thinner, etc.
(fluid that does not contain bubbles)
Flow range Max. 0 to 2.0 L/min
Min. 0 to 0.5 L/min
Accuracy ±2% of R.D.
Flow rate: 
±0.016 L/min for
0.8 L/min or less
Temperature Normal temperature (±0.5℃)
Tube size PFA 1/8”, PFA 1/4”,
PFA φ4, PFA φ5, PFA φ6
Material PPS (clamp band for large diameter: PP)
Construction Equivalent to IP20 (indoor use)


Model SFC011GS
Channel 6
Display 4 digits (Instantaneous flow rate, status)
Digital output: 
NPN Open collector
Load rating : 30 V, 10 mA DC
Frequency output, Error output,
Instantaneous flow rate upper/lower limit alarm,
Integrated flow rate output,
Integrated flow rate upper limit alarm
Analog output: 
4 to 20 mA DC (Standard) Load resistance: 250Ω or less
Power supply 24 V DC ±10%
Construction Equivalent to IP20 (indoor use)
Installation DIN rail mounting