How do I replace a bubbler system with the FOGRod?

Changing a bubbler system to the FOGRod is pretty simple. The important question – is the bubbler actually doing pump control as well as measuring level?

The LIT gives a level output (10 relays + analog output), but doesn’t do pump control.

If the bubbler is not doing pump control then it’s very easy – it is probably feeding an analog signal into something else (e.g. a pump controller, a PLC). Connect the analog of the LIT into the same place and you have replaced the bubbler.

One important point – if it’s an analog output, the range of the bubbler may be different from the range of the LIT. Our unit gives 1mA steps for each 3″, 6″ or 9″ (depending on the length of the FOGRod). Someone may have to change the setpoints in the PLC or pump controller. It’s the exact same issue when replacing a pressure transducer.

If the bubbler is doing pump control then you need to add latching relays and an alternator along with the LIT.