Looking for recommendations for tuning fork level switches
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Currently, a Rosemount tuning fork switch is being used; it can operate at temperatures of 130 degrees Celsius in acidic liquids, with a pressure of 3 kilograms, and the probe is made of 316+PTFE material. The fluorine-lined part at the probe is slightly deformed; when the pressure drops rapidly, for example to 1 kilogram, the level switch detects a liquid level when in fact none is present. However, it functions normally under normal conditions. I’m looking for recommendations for foreign brands of tuning fork level switches that can withstand temperatures of 130 degrees Celsius and highly acidic working conditions; are there any such switches made of tantalum?
Isn’t it more reliable to use a level transmitter instead?
Can’t we use radio frequency admittance? It’s not capacitive; the three-terminal shielding principle is what constitutes true radio frequency admittance
Ferritic glass crystal switches can be used; foreign brands such as Siemens and E+H probably offer them, but the price is not cheap :)
The PTFE lining isn’t fitting tightly; just using a probe with 316 material coated in PFA should do the trick.