Shutdown return to avoid tank overflow with 1 sensor HOW TO ?

I whant to program my profilux to Shutdown return pump to avoid tank overflow and I have 1 float sensor.

I already have an ATO using sensor 1 and 2, so the float sensor is nr. 3.

How do I program this ?

By the way the ATO / sensor 1 is an optical sensor. It is programmed to make an error after 10 sec in case that the RO-water chamber is empty and no increased water level ind the sump are registered.

Can I combine sensor 1 and 3.

So sensor 1 (from the ATO) report if the water level is too low in the sump and turn off the return pump and sensor 3 (float sensor) in main display tank report if water level is too high i main display tank and turn off return pump.

Can this be done and how ?

1. Go to LEVEL settings page, select unused control circuit, set function to LEAKAGE DETECTION, select Sensor 3.
2. Go to SWITCH CHANNELS page, select outlet that has return pump connected, set function to FILL WATER, select the control circuit number you used in step 1.

By default, this socket will stay ON.
If water level triggers the float sensor, the assigned socket will turn OFF and an alarm will be activated.

More information on this can be found in our P4 Resource Guide:
See Leakage Detection
https://www.aquariumcomputer.com/dow...esource-guide/

NOTE
It is only possible to assign a single sensor to ATO/AWC task.

That worked :-) Thanks.