About Rosemount conductivity
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Has anyone used Rosemount conductivity meters? There seems to be an issue with the conductivity of the circulating water introduced by the unit; it’s not clear. 1. For example, is the conductivity constant within it fixed? Will it change on its own after calibration? 2. If the indication is inaccurate, should one first check whether the conductivity constant matches or examine the zero point? 3. Is it necessary to calibrate the zero point? Is there any impact? 4. In some instruments, fluctuations occur as soon as the valve is opened fully; I’m not sure what the reason is It will be fine once it’s turned down.
1. I’m not quite sure; doesn’t it change after calibration? 2. Check using the standard solution. 3.4. What instruments?
After calibration, I found that the constants I had changed had reverted back to their original values. The conductivity of Rosemont is 1056.
4. Sometimes, when it is adjusted to a higher setting, pressure pulsations may occur, which could have an impact. When it is turned down, this pulsation becomes smaller. Additionally, it seems that Rosemount’s analytical instruments don’t perform well and are considered niche products.
Oh! I see, thanks :)
This requires regular calibration; it may need to be calibrated once a week, every two weeks, or once a month
In the case of inductive conductivity, the conductivity electrode constant remains essentially unchanged. In the case of a contact-type conductivity probe, as long as the electrodes are not corroded or deformed, the conductivity electrode constant remains essentially unchanged ； However, if the electrode corrodes or undergoes mechanical deformation, the conductivity electrode constant will definitely change. The measurement of conductivity is related to temperature, medium flow rate, and the microenvironment of the conductivity electrodes; it is therefore important to maintain a favorable measuring environment. Since it is a calibration, one data segment should be corrected, but it does not have to be the zero point of conductivity (theoretically, there is no zero point for conductivity unless the resistance is infinite); using a calibration solution is a good option.