Brooks Instrument Blog

In my last post I talked about UL Listed versus Recognized.  This time we are going to take a look at the IP and NEMA ratings and what they mean.  With this information you should be able to decide what minimum level of protection you need for your application.

Let’s start with the basics.  What does IP and NEMA stand for?  IP stands for ingress protection and NEMA stands for National Electrical Manufacturers Association.  Both IP and NEMA are rating systems for equipment that might be exposed to liquids, rain, ice, corrosion and contaminates such as dust.

An IP number contains two numbers (i.e. IP65) in most instances which relate to the level of protection provided by an enclosure or housing.  The first number relates to protection from solids as follows: Read more…

Brooks Instrument knows a lot about agency approvals.  If you need a mass flow controller, mass flow meter, or pressure controller for a hose down or hazardous area requirement you came to the right place!  We not only have the approvals, but we can also help you understand which approval is right for your application.  For example, what’s the difference between UL ‘Listed’ and UL ‘Recognized’ and which one is right for my application?

Well the UL Listed products carry the following mark.

This means that the product has been tested by UL to nationally recognized Safety Standards and has been found to be free from reasonably foreseeable risk of fire, electric shock and related hazards in a Division 2 / Zone 2 environment.  The Brooks SLAMF Series thermal mass flow meter/mass flow controller and pressure controllers, and the Quantim IP65 Coriolis mass flow meter/mass flow controller products are all UL listed.

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