PH Probe question
- Thread starter Dack77
- Start date
AQD_ottawa
New member
We receive this question a lot.
It all depends on the following
1. How you look after it (maintain it)
2. The enviroment it is in.
If all the above are equal then yes you should get 12-18months, but there is no golden figure these are just estimates.
pH probes are degenerative, the moment you start using one its life starts shrinking, it is then up to the owner to maintain the probe to increase the life as much as possible in respect to the enviormant it is in.
It all depends on the following
1. How you look after it (maintain it)
2. The enviroment it is in.
If all the above are equal then yes you should get 12-18months, but there is no golden figure these are just estimates.
pH probes are degenerative, the moment you start using one its life starts shrinking, it is then up to the owner to maintain the probe to increase the life as much as possible in respect to the enviormant it is in.
AQD_ottawa
New member
The temp probes are pretty much bullet proof as long as you dont drop them! Just clean thats all.
Ok here is a list of what to do with what probes
pH - Clean weekly - calibrate bi weekly, never allow to dry out- life - as discussed above
Redox - as above, clean in recommended Redox cleaning solution - life - same as pH
Conductivity - clean and calibrate weekly, can be cleaned in same solution as redox, a tarnished element as with Redox leads to wrong readings - Life indefinate but not guarranteed
Temperature - clean weekly life as with conductivity
Ok here is a list of what to do with what probes
pH - Clean weekly - calibrate bi weekly, never allow to dry out- life - as discussed above
Redox - as above, clean in recommended Redox cleaning solution - life - same as pH
Conductivity - clean and calibrate weekly, can be cleaned in same solution as redox, a tarnished element as with Redox leads to wrong readings - Life indefinate but not guarranteed
Temperature - clean weekly life as with conductivity
Last edited:
AQD_ottawa
New member
Yes pH probes are degenerative.
As time goes by the the reference solution inside the probe (KCL gel) becomes more fluid as it slowly becomes contaminated with the water that it sits in. This breaks down the ability for the probe to reference correctly.
To maintain the probe, you can purchase pH probe cleaner but in all honesty and gentle scrub in fresh water around the reference junction plate and bulb is enough, then recalibrate.
You can not stop a pH probe from ageing but by keeping it clean the junction does not block up so quickly which is part of keeping the probes life as long as possible
As time goes by the the reference solution inside the probe (KCL gel) becomes more fluid as it slowly becomes contaminated with the water that it sits in. This breaks down the ability for the probe to reference correctly.
To maintain the probe, you can purchase pH probe cleaner but in all honesty and gentle scrub in fresh water around the reference junction plate and bulb is enough, then recalibrate.
You can not stop a pH probe from ageing but by keeping it clean the junction does not block up so quickly which is part of keeping the probes life as long as possible
