Then a chain of new events and wrong decisions leads to degeneration and worsening of the situation. The cause of the erroneous decisions is often that the operators do not know which pH values are in the processes because the zinc plant does not have enough pH measurements or because the pH measurements are wrong. The result is that the process is executed with incorrect pH values with disastrous consequences. Such "mishaps" causes major production losses and it may take several days before production is back up to normal levels after the "mishap". Accurate, reliable high performance pH measurements can reduce the number of such “mishaps”. Such “mishaps” are very costly and the prevention of one episode might actually be more than enough to pay for the number of accurate, reliable high performance pH analyzers needed.

Summary:
 By using accurate, reliable high performance pH measurements the zinc yield is increased and the consumption of additives such as for instance zinc dust is reduced. Good pH control gives good quality of the solution and high current efficiency in the electrolysis and this provides a corresponding increase in production capacity. The number of "mishaps" with production losses can be reduced and this also provides increased production capacity. It is not possible to quantify the improvements that can be achieved because no zinc plants are similar, but usually the annual production can be increased by several percent.

In the zinc industry, the temperatures are high, the solids content is high, the solutions are complex with high ionic strength, the pH is in the range of 0.5 to 7 and most processes are precipitation processes. It is very difficult to measure the pH continuously under such conditions. There are many types of pH analyzers on the market, including systems with retractable electrodes. The problem is that none of these systems provides the accuracy and stability necessary for effective zinc production.
That is why we have developed pH analyzers specifically for the hydrometallurgical zinc industry.

The following properties distinguish our analyzer from other known technology:
1. High short-term and long-term accuracy.
2. Most reliable, infrequent error with the analyzer or the electrodes.
3. Other systems require calibration daily or even several times daily to provide high accuracy. Our analyzers have high accuracy even with weeks’ interval between calibrations.
4. Very low price compared to other on-line analyzers.
5. Low operating costs, long electrode life, low-maintenance and relatively long intervals between calibrations gives low total operating expenses.