Download SF-500S Datasheet

Product Description

Product Description

SF-500S is an ultrasonic non-contacting flow meter for open channels. The measured level value is converted into the rate of flow in specific weirs or flumes where the accurate level value is very important. LXD-04 is an exclusive sensor for open channel flow providing accurate level reading. SF-500S provides a variety of weir and flumes formulations enabling it to be used in different applications. The measured flow information is saved in the memory of SF-500S and it can be downloaded by USB or transmitted via digital communication such as RS232, RS485 or Modbus.



  • Exclusive Sensor for open channels
  • User Friendly Menu
  • Error Instruction Guide by QR code
  • RS232, RS485, Modbus
  • USB Data Download
  • USB Firmware Upgrade
  • Data logging for long term period
  • Various Flumes and Weirs Formulations
    1. Parshall Flumes
    2. Supressed Rectangular Weirs
    3. Contracted Rectangular Weirs
    4. V-Notch (triangular) Weirs
    5. Cipolletti Weirs
    6. Leopold Lagco Flumes
    7. Palmer Bowlus Flumes
    8. H Flumes
    9. Trapezoidal Flumes


Controller – SF-500S

Measurement Ultrasonic non-contacting
Measurement Range 0.00m3/h~200,000.00m3/h
Accuracy 0.2% of F.S
Resolution 1mm
Damping Rate 0.1m/min ~ 100m/min adjustable
Data Logging Period Maximum 672 days (1hr interval)
Output • Two 4~20mA analog outputs into max 750Ω

• 3 Relays

• RS232, RS485, Modbus

Display Illuminated Graphic LCD
IP Rating IP65
Temperature -20°C – 60°C (-4°F – 140°F)
Material Polycarbonate
Dimension 166(W)×250(H)x95(D) mm
Weight ca. 2kg
Power Supply • 100~230V AC±15%, 50/60Hz, 29VA(12W)

Fuse 250V T1.0A

• DC 9~30V, Max 8W


Sensor – LXD-04

Range 0.3~4m (0.98~13ft)
Bean Angle 8°at -3dB
Process Connection 1” PF
Weight ca. 1.0kg
Material PVDF
Temperature -30°C – 70°C (-22°F – 158°F)
Temperature Compensation Built-in temperature sensor
IP Rating IP68
Cable 2 Core Shield (AWG18)


Certificate – CE, UL, FCC

Warranty – 3 Years

* The specification is subject to change without notice.

Download SF-500S Datasheet