Sonic-Pro S4 Ultrasonic Flowmeters

Pipe Sizes ½ , ¾”, 1”, 1½” and 2”
Mount Method Inline

ULTRA-PURE Applications, DI Water, and low particulate ground water.

  • Process Control Relays
  • 4-20mA and Pulse Outputs
  • Transit Time operating mode for measurement of water containing low levels of chemicals and up to 5% particulates
  • Inline spool piece (inline fitting)
  • No moving parts, not liners to wear out
  • Advanced communication: Industrial Ethernet, Modbus RTU, Modbus TCP, PROFIBUS TPV1, and PROFINET
  • Special low power mode permits operation with battery for limited functions
  • 2 year factory warranty

Pipe Sizes

½ , ¾”, 1”, 1- ½” and 2”


Water to 5% (0 to 50,000 ppm) particulate


+/- 2% of rate greater than 1 ft/sec.; +/- 0.10 ft/sec less than 1ft/sec

Interface & Data

Data Outputs:

    Isolated 4-20 mA output – fully configurable, invertible
    0-1000 Hz Pulse output – fully configurable, invertible

Data logging:

    date/time stamped flow rate and flow total data in FAT32 file format, easily imported into Excel. Configurable to trigger on time interval (1-999,999 sec), rate and/or total set-point values. Store up to 191,800 log events in the memory buffer, downloadable to flash memory via USB port.

External Communications:

    Computer connection via optional Communications Modules:

      Industrial Ethernet/IP
      Modbus RTU
      Modbus TCP
      Profinet RT/IO
      Profibus DPV1

Process Control:

    Two independently configurable Form C relays. Load capacity: 30V, 100mA max (ext. supplied)

      Configure to flow rate

        for high/low/range rate alarm. Programmable release values enable auto release or manual batching operation.

      Configure to flow total

        for automatically triggered, timed batch operations for proportional feed applications.


NEMA 4X (IP66)


Meter size:

    Dimensions: 7.24H x 6.69W x 3.11D inches (184H x 170W x 79D mm)


    3.7 lb. (1.7 Kg.)

NIST certificates optional

Tech. Data Sheet (PDF) 85000-117
Instruction Manual (PDF) 80000-493
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