Ph tunze 6101

[rehw]

Hi,
the Ph reading on the proflux has been reading 9.5 ph, wenn a connect a tunze 6101, wenn a disconnect the tunze form the 230v the reading is 8ph,
also if a unplug the din plug so the pump end up at full power the ph starts to return to normal.

[GHL Support]

The signal of the pH sensor is very slight.
Maybe the tunze generate too much electromagnetic noise - and interferes the signal of the pH sensor.

Try to sepearte both as much as possible - they should not be too close together.

[rehw]

The ph probe is in the sump, i have the power suply from the tunze also connected to a diferent 230v outlet, the ph is then also to high.
the jump in ph is only when a make a electrical connection white the pomp.

do jou have a 0-10v liniare optocoupler interface to connect the profilux to the tunze, so it is electrical isolatet.

sorry for my spelling


Ruud

[jjb]

the same thing is happening with my radox sensor, 4 tunze 6105s connected to the profilux the reading is 85-150 when the tunze is not connected reading all ok 320.