ultrasonic transit-time flow meter / for water / for chemicals / for wastewater
SGM-101F LTH Electronics Ltd



  • Technology:

    ultrasonic transit-time

  • Fluid:

    for water, for chemicals, for wastewater

  • Other characteristics:

    digital, RS485, clamp-on, insertion, IP68, IP66

  • Applications:

    industrial, for water treatment, for environmental analysis, for pipe fitting

  • Process temperature:

    Min.: -40 °C (-40 °F)

    Max.: 160 °C (320 °F)


IP68 clamp-on or insertion transducers. IP66 Wall mounting instrument Simultaneous display of flow rate and cumulative volume(Totalizer)
0-20/4–20mA, pulse(OCT) and relay with RS485 Modbus output
Optional SD card for data logger. 230vAC or 24vDC power supply options
The SGM-101F time transit ultrasonic flow meter comprises a digital converter and two clamp-on or insertion ultrasonic transducers. The system is designed to measure the fluid velocity of a liquid inside a closed pipe. The transducers are a non-contacting, clamp-on type, which provide the benefits of non-fouling operation and easy installation. The SGM-101F utilizes two transducers which work as ultrasonic transmitters and receivers,they are clamped on the outside of a closed pipe at a specific distance from each other and can be mounted in V position where the sound crosses the pipe twice. This is the most common measurement method for pipes with inner diameters ranging from 20 to 300mm. They can also be used in the W position where the sound crosses the pipe 4 times for plastic pipes with a diameter from 10 to 100mm. Alternatively they can be used in the Z position with the transducers mounted on opposite sides of the pipe and the sound crosses the pipe once and the pipe diameter is between 300 and 500 millimetres. The selection of the mounting position depends on the characteristics of the pipe and liquids being measured, insertion transducers are also available.