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Entries » Blog » How do you choose the right level instrument for chemically aggressive environments?

Herman Coello |

How do you choose the right level instrument for chemically aggressive environments?

Okay, so you need to know the level on one of your tanks and you are wondering which level transmitter instrument will meet your needs.  The tank calls for a bit more attention because the material in it is chemically aggressive.  From past experiences, you know that similar tanks do not work well with instrumentation tools or costly exotic construction materials, like Hastelloy alloys.

Even if choosing the right technology may not be an issue for you, you may still be interested in a level application solution that has proven effective.  If this is the case, you would be looking for an instrument that meets your application parameters and can do the job for a fraction of the cost. 

You know that the market offers radar level transmitters that use rod antennas constructed out TEFFON® or Polypropylene ® materials.  These materials have great chemical compatibility with many substances but the rod antennas tend to protrude too much into the tank, which can be unfavorable and lead you to higher priced solutions. 

Have you considered using a fully encapsulated antenna (FEA)?

A radar level transmitter with a FEA can give you the freedom to fill the tank virtually to the very top.  The wetted part of a FEA is the only part of the horn antenna that comes into contact with the corrosive material in the tank. This highly chemical-resistant lens seals the tank once the radar transmitter is installed in the process connection.

In addition to being FDA approved, the beauty of a radar transmitter with a FEA is that its lens covering the horn opening is compatible with almost 99% of chemicals.  Some of these chemicals include:

  • Hydrochloric acid
  • Sulfuric acid
  • Aluminum Chloride
  • Aluminum Hydroxide
  • Phenol
  • Nitric Acid

From the most innocuous processes found in the food industry to corrosive acids used in water treatment, the design for the FEA can be used for a broad spectrum of level applications.

So, don’t scratch your head the next time you are faced this challenge. Instead, discover how a fully encapsulated radar transmitter like the SITRANS LR250 can help solve your problem, and save you money at the same time.

Do you have a challenging level application you need help with?

To choose the right radar technology, check out our blog.  

To learn more about our level transmitters visit our website


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