Introduction: #
For applications involving tanks containing N-Methyl-2-pyrrolidone (NMP), a submersible pressure sensor (level sensor)would be a suitable choice due to its ability to provide continuous level measurement and its compatibility with chemically aggressive solvents like NMP. In this instance, the LMK 809 Submersible Liquid Chemical Level Sensor is a strong candidate. Here are the reasons and technical specifications that make it suitable:
Chemical Resistance: #
The LMK 809 features a PP-HT (Polypropylene High Temperature) housing and a ceramic Al2O3 99.9% diaphragm, both of which are highly resistant to aggressive chemicals, including organic solvents like NMP. The media-exposed seals are made from FKM (Fluoroelastomer), which is also compatible with NMP.
Measurement Range: #
The sensor supports a pressure range from 0.4 mH2O up to 100 mH2O, which can be customised to suit the height of the tank . Calibrating specifically to the tank height ensures accurate level monitoring over the entire tank height.
Output Signal: #
It provides a 4-20mA, 2-wire output signal, which is a standard for industrial applications, ensuring seamless integration with most control systems. 0- 10V, 3-wire output is also available if required.
Cable Specifications: #
The sensor comes with an FEP (Fluorinated Ethylene Propylene) cable, which is resistant to chemical exposure and can withstand temperatures up to 70°C. This ensures durability and reliability in harsh environments.
Summary: #
The LMK 809 level sensor is a reliable and robust solution for aggressive chemical applications, offering the chemical resistance and measurement accuracy required for NMP and other media which will destroy conventional level sensors. For further details, you can consult with Stork Solutions sales team for tailored advice and pricing.
