Questions to Help Determine the Probe or Flow Cell You Need

There are many considerations when buying a probe or flow cell for an FT-NIR, NIR or UV-VIS analyzer system. Knowing the sample type such as, gas or fluid is the place to start. Then the expected chemical concentration along with temperature and pressure ranges of your application are needed. The process environment needs to be reviewed with the number of locations to be monitored. Also, are safety certifications needed? Knowing the answer to these top level questions will speed the buying process and assure you make the right decision for your process monitoring needs.

Rubric's Cube
Figure out the how to choose a probe or flow cell for your application

7 Questions to Consider when Buying a Probe or Flow Cell for
an FT-NIR, NIR or UV-VIS analyzer system:

  1. Is your sample a gas or fluid?  If fluid, is it pure liquid, emulsion, or slurry?
  2. What is the expected concentration range of the chemicals in the sample stream?
  3. What are the pressure and temperature ranges of the sample stream?
  4. Will a few degrees of temperature variation at the sample interface impact the process?
  5. Will the sample interface be installed in a highly corrosive environment?
  6. How many locations do you want to monitor?
  7. Does your analyzer system need any third party safety certifications? (CRN, CSA, ATEX, IECEX)
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Probe FAQ’s

Is your application/process stream a highly corrosive environment?

 If so, a Teflon®, 304L SS, or a Hastelloy® probe may be a good choice.

Do you need a flange or gear-driven extractor?

Insertion probes can be secured to the pipe via a custom flange, gear-driven extractor, or Swageloktm seal.

What materials are compatible with the process?

Flow cells and probes are typically available in many different materials. Choose the material that is compatible with your process stream.

Will a few degrees of temperature variation impact the process?

If so, the Heated Flow Cell is often used to prevent spread in nucleation, micellization, cross-linking rates, or other temperature-dependent processes.

Flow Cell FAQs

Is your application/process stream a highly corrosive environment?

 If so, a Teflon®, 304L SS, or a Hastelloy® flow cell may be a good choice.

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