Given the high temperature in the evaporator, fluctuations in the liquid level, and the presence of crystalline particles, what type of level switch should be chosen?
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It is an evaporation crystallizer with a temperature of 90 degrees, operating under negative pressure; the salt content is 15%, there are crystalline particles present, and the liquid level fluctuates. A differential pressure level gauge has been selected. In this case, is it still necessary to use a level switch? If needed, may I ask which one would be better?
May I ask if it is slightly negative pressure or relatively high negative pressure? Relatively high negative pressure is not suitable for using differential pressure level gauges. For the operating conditions described by the poster, an RF admittance level switch is recommended.