RT Series
Rate Totalisers


The RT is a fully programmable self powered ow rate totaliser specifically designed for computing & displaying ow rates & totals from flowmeters or machinery with frequency, sine wave or pulse outputs.

The instrument displays instantaneous flow rate, resettable (batch) total and a cumulative total in engineering units as programmed by the user.

The integral 3.6V replaceable lithium battery supports the rate & total displays and provides as much as 10 years of service.


  • Self or external powered, 8 digit LCD resettable & cumulative totaliser, 5 digit rate display
  • Robust IP66/67 universal mount or DIN panel mount version
  • Simple programming
  • PIN protected programming
  • Scaleable flow inputs
  • Multipoint linearity correction
  • Intrinsically safe version
  • Long battery life
  • Non volatile memory
  • Low frequency cutoff
  • Dual flow inputs ( A+B, A-B, A ̧B )

Contact Us

Download our latest datasheet. Please note that you will need a PDF reader to view the files.

Download Datasheet

Flow Meter Displays

We offer a wide range of displays which give local and remote indication of flowrate and total volume.

View Product

ETL – RN4 Turbine Flow Meter

This flanged range of flowmeters will provide you with a highly accurate way of measuring liquids over the range of 2 to 9000 litres/min.

View Product

ETL – RN7 Turbine Flow Meter

The RN7 hygienic turbine flowmeters are specifically designed for the measurement of liquid flow in the food and pharmaceutical industries.

View Product

Online Shop

Call us on +44(0)1423 522 911 or email sales@etlfe.com