Stationary Reference Electrode

[cytech]

Hi, All

The contractor have install stationary reference electrode near the buried struction, my question life span of this stationary reference electrode.

Regards
Cy

[f.ghezeljeh]

Life of stationary reference electrodes should be asked form manuafacturer.
Life of permanent Cu/CuSO4 reference electrode is about 20 years.

[cytech]

Hi f.ghezeljeh

As per the data sheet from the supplier it 20 Yrs, in our plant encounter few stationary reference electrode giving in-accurate voltage. is there a way to calibrate?

Regards
Cy

[f.ghezeljeh]

Cu/CuSO4 reference electrode composed of metal (Cu) and it's dissolved salt (CuSO4).
potential of this electrode is linear depandent to temperature and logarithmic dependant to solution concentration.
due to leak from porous plug, concentration of electrolyte should be maintained by CuSO4 crystals.