The long-term crystallization of the on-site pH meter using salt water and sodium hydroxide is inaccurate
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This post was last edited by sunjl1981 on 2013-1-6 23:42. The on-site pH meter is not accurate for long-term crystallization of salt water and sodium hydroxide. Which one is good for home use? What is the best method? It is best to use diagrams to illustrate. This post was last edited by yzhms on 2009-3-12 11:18 ] # hcbbs
It is best to take samples for analysis. Online instruments require professional maintenance, focusing on maintenance and calibration. Long-term inaccuracy is mainly a management issue, not an instrument quality issue.
The pH meter should be calibrated frequently, and the place where the pH meter is located should be kept warm. This post was last edited by yzhms on 2009-3-12 13:42 ]
Online can only play a monitoring role, but to truly measure accurately, manual analysis is required. In addition, for automatic control instruments, it is mainly necessary to strengthen management, regular flushing, regular maintenance and inspection.
It is impractical to install a pH meter and it is easy to form salt, seriously affecting the accuracy of the measurement. This post was last edited by yzhms on 2009-3-12 13:42 ]
Consider setting up a primary loop on the pipeline, which is connected in parallel with the main pipeline. It is better to adjust the measured flow rate and temperature, so that it can be processed at any time. In addition, a flushing setting should also be considered, so that flushing can be carried out regularly.
We installed it using the seventh floor method.
How effective is it? How often should I rinse?
More calibration, more cleaning, there is no particularly good way
Install it in a place that is easy to clean, strengthen inspections, and clean it in time when the flow is found to be small. The most important thing is central control analysis. The instrument only measures a general range.
Use pH test paper to measure during inspection, or place a pH meter in the primary salt water and take manual samples for measurement. This post was last edited by yzhms on 2009-3-13 17:51 ]
It is necessary to strengthen inspections frequently, clean regularly, and keep warm. There are no other good methods. The best method is manual analysis.
Our factory basically cleans the electrodes with pure water every day. Personally, I feel that there is no way to control the salt formation and I can only clean it frequently and perform manual analysis.
Ours has not been used for a long time, and now we have made alkali dosage, 0.1-0.3g/l. This post was last edited by yzhms on 2009-3-25 22:23 ]
Good waste equipment does not measure accurately and starts flushing every shift, but it does not work. The instrument personnel can’t understand it either, and it’s basically been abandoned now and no longer needs to be operated manually.
It should be compared with the manually analyzed data regularly (one day or two days). If it is not accurate, proofread or recalibrate it. This post was last edited by yzhms on 2009-3-25 22:22 ]
If you keep cleaning and calibrating like this, you might as well find a different solution!
Isn’t the online one so easy to use? Isn’t it self-cleaning? Daily maintenance would be troublesome.