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What liquid level switch is better for the sewage pond?？

First, look at the environment.
Is domestic sewage or industrial sewage, industrial sewage generally has heavy metals and so on, the general owners will require non-contact measurement, domestic sewage if there are not many impurities can be used in input, impurity sediment too much or non-contact is better,Sewage treatment should also have a recovery process, such as some. The collection of organic water in the tank is usually done with input.
In conclusion, pay attention to the following points:
1、impurity settling, non-contact
2、 corrosive, non-contact
3、Foam ozone tank environmental pressure input
Generally speaking, the non-contact type uses ultrasonic wave, which can be selected according to the site. If it meets the pressure input type, the pressure input type should be used as far as possible,In addition, the ultrasonic wave can not be used in the sealed tank with larger pressure.
A few days ago, I saw the ultrasonic liquid level gauge of our company at the site of Shennan circuit sewage treatment and reuse project in Shenzhen a few days ago,The project invested more than one hundred million, and the ultrasonic liquid level meter did not show no output,It was an organic water comprehensive water collecting tank in its workshop. The foam in the tank was about 2CM.

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Selection and distinction of calibration methods for flow meters

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2018-10-10