Where is the stability of the PH sensor? What are the components that tend to malfunction most often when people use them on a regular basis?
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I’ve seen many domestic manufacturers producing glass bulb pH electrodes, as well as those from E+H. The analog glass electrodes all seem identical to me. In actual use, is it the glass electrode itself that affects stability, or is it the transmitter circuit that has a greater impact on performance? Is it necessary to choose imported pH electrodes?
In our on-site use, glass electrodes have a significant impact. The replacement frequency is relatively high. Brand: Mettolidoid
How long does it generally take to calibrate a pH meter on-site? The time required
pH meter electrodes are consumable items; the further the pH value is from 7, the shorter the lifespan of the electrode. The pH meter can have its probe calibrated at home, and it can be replaced directly on-site.
For pH electrodes, aside from rupture, the biggest issues are those related to the liquid junction and the reference electrode. The liquid junction is blocked and scaled by medium contaminants ； Excessively harsh media cause contaminants to penetrate the reference electrolyte inside the reference electrode, and the damage or contamination of the silver wire can both lead to measurement drift. In most cases, the choice of electrode depends on the medium, with different reference systems being selected accordingly; of course, high temperatures, high pressures, or particle friction are also taken into consideration at times
The verification electrode is fast to use, and its operation is very simple