the replacement sensor worked for about three months and died, but this time, both the PH and ORP sensor died. I think its my installation location.
My sensors are installed like this;
PUMP ----> pipework (with ORP and PH) ----> Filter ---> Salt Chrloinator ---> pool
When my pump runs on speed 2 pressure is around 58psi and on speed 3 pressure spikes past 75psi. I think what happened earlier this year is that the filter got clogged up so the pressure when i was vacuuming went past 75psi and killed the sensors. the tech specs for the sensors say these are rated at 82psi max. Would excessive pressure damage these sensors?
I had a look at my salt chrolinators official OEM ORP and PH kits and it plumbs both sensors in AFTER the filter, not before, so this is a significant difference of installation location.
The setup based on the chorlinators ORP/Ph kit would look like this;
PUMP ----> pipework ----> Filter ---> Salt Chrloinator (ORP and PH plug in here) ---> pool
This would mean though, that because the line returns to the pool it doesnt always hold water when the pump is off, so would these sensors (the phidgets ones) continue to work when they are not submerged in water? The commercial salt chrolinator sensors dont mention any sort of issues and obviously it would not be fully submerged all the time being on a non-vacuum return line to the pool.
I can buy new phidget sensors and put them in the return line where the salt chrolinator install suggests but would they be ok not being submerged all the time ?