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FAQ  

Q: What does the drop symbol on the 300series LCD indicate?

A: On units manufactured during or after April 2008, the drop symbol indicates:

  • Symbol OFF continuously (blinking ON every 16 seconds) indicates the unit is powered and empty of liquid
  • Symbol ON continuously (blinking OFF every 16 seconds) indicates the unit is powered and full of liquid which is not flowing
  • Symbol flashing indicates a flow; the flash rate increases with increasing flow rate
This is similar to the function of the LED on the 100series products as described here.

For units manufactured before April 2008, the function is:
  • Symbol OFF continuously indicates the unit is empty of water
  • Symbol ON continuously indicates the unit is full of water which is not flowing
  • LED flashing indicates a flow; the flash speed is constant regardless of the flow rate

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