Can the TU5's flow sensor readings be displayed on the controller screen and output to SCADA?

Document ID

Document ID CO9

Published Date

Published Date 21/03/2017
Question
Can the TU5's flow sensor readings be displayed on the controller screen and output to SCADA?
Summary
Description of the functionality of the TU5's flow sensor with visualization, outputs, and SCADA
Answer
The flow sensor (impeller flow design) for the TU5 series turbidimeters displays continuous flow readings, providing confidence in the TU5's turbidity measurement.

On-screen flow display

Current sample flow rate is displayed on the sc controller screen. If flow is outside of the recommended boundary range, the controller will display a warning or error as appropriate to alert to potential issues.

Output capabilities
Flow readings can be used to output information from the controller in two ways:
  • Direct input to a SCADA system using an analog 4-20mA output or digital communication like Modbus or Profibus
    • Care should be taken to provide a sufficient number of outputs when using analog communications. With a flow sensor, one TU5300 or TU5400 instrument will use two 4-20mA output slots, one for turbidity measurement and one for flow measurement. With two flow equipped TU5300s or TU5400s on a controller, four outputs are necessary to send the desired information to a SCADA system. Digital communications do not have this limitation.
  • Trigger opening or closing of a relay depending on setpoint values.