USI – Open Channel Flow Meter by USI is a wall-mounted, multi-parameter monitoring instrument and data logger for clean water and wastewater measurement. Standard unit includes an ultrasonic flow sensor, dedicated pH input, relay outputs, Ethernet and Modbus communications, and a 20-year data logger in a weatherproof enclosure.

  • Combines flow measurement, pH monitoring, and data logging in one device
  • Accepts inputs from additional 4-20mA and Modbus sensors for expanded monitoring
  • Includes six programmable relays for control applications
  • PC reporting software and USB data download standard
  • Weatherproof (IP66/4X) wall-mount enclosure protects electronics
  • Simple, user-friendly programming with on-device interface
  • Optional sensors for turbidity, dissolved oxygen, temperature, and conductivity

Applications

  • Trade effluent monitoring
  • Waste water monitoring
  • Drinking water monitoring
  • Water quality monitoring
  • Seawater and storm water monitoring
  • Irrigation channel measurement

Options and variations

Optional interface box for up to four Modbus water quality sensors; isolated 4-20mA input option for high-voltage environments; ISE pH sensor, Modbus turbidity sensor, Modbus dissolved oxygen sensor; sensor holders and calibration solutions available.

Performance

Logs measured parameters for up to 22 years; IP66/4X weatherproof rating.

Installation

Wall-mounted enclosure; compatible with PC software and USB stick for data download.