How long is the lifespan of an industrial online pH meter?
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I would appreciate it if anyone in the know could give some advice. Thank you! Why did the new pH meter break down after less than three months of use?
Without information on the operating conditions, I can’t answer! !
An online pH meter mainly consists of two parts: one is the converter, and the other is the electrode. If the converter breaks down after less than 3 months of use, it’s either a problem with the product quality or your way of using it is too aggressive. If it’s an electrode, there are many possible reasons: the selected electrode is not suitable for the operating conditions ； The electrodes are not installed correctly ； Components in the medium that are toxic to the electrode ； Too high flow rate of the medium, too high pressure, etc. Another possibility is that the price of the products purchased is extremely low, which could be the main reason why many factories do not use them.
Reply to 2# dys517: Saltwater medium, flow rate
The pressure is too high! The flow rate is also too high.
The pressure and flow rate are indeed a bit high; it is recommended to divert the medium, that is, to add a sampling device for measurement.
Does frequent calibration of a pH meter also reduce its service life?
In the ion-exchange membrane caustic soda production process, it is crucial to choose an appropriate pH probe for measuring the pH of the brine; a probe that is not suitable can barely last three months, which is already considered the upper limit of what is acceptable. If it is a probe of the appropriate model, three months should be the minimum usage period. Furthermore, the active chlorine in saltwater has a fatal effect on conventional probes. Special processes and special workstations require additional investment to accommodate them.
An online pH meter from Yokogawa in Japan has a decent cost-performance ratio. All of the above are insights from experts; it’s very useful to learn from them. Please contact me at 594733119 to discuss further
The operating conditions have a significant impact, so it’s not possible to make generalizations. In the shortest case, a replacement was needed every half month; this was indeed due to the operating conditions – there was too high a concentration of toxic ions. The pressure in the pipeline was also on the high side; it is recommended to install guide pipes. Also, the quality of the probes themselves varies; those from Mettler and E+H are of better quality