Expert’s answer: Monitoring compressed air filters

Squishy squishy! Ahem, yes. Monitoring compressed air filters. Okay, this counts as a run-of-the-mill gig. One of the easiest – yet still effective! – ways? Slap a cheap pressure transmitter on each side of the filter. Yup. You can also put in a differential pressure transmitter. Six of one, half dozen of the other here.

Endress level application for monitoring compressed air filters
Pressure Transmitter – Courtesy of Endress+Hauser

Both setups will check the pressure before and after the filter. If the pressure before reads higher than pressure after, then clean your filter, you slob! These transmitters can also do more than just monitor your filter, if you have an itch for more data. Knowledge is power, y’know.


Plus, if you don’t have the cable structure you’d need for a wired transmitter, remember you can go wireless on your new measurement point. It’ll save you money in the long run, so think about it!

Where can you get more information about monitoring compressed air filters?

If you want to find a pressure transmitter for monitoring compressed air filters, we’ve got some links we can recommend. Check out the pages below!

For a variety of absolute and gauge pressure devices, look at these:

Other resources that might interest you

Pressure transmitter basics
What are the different types of pressure sensors available in the market?

Absolute, gauge, and differential pressure
Should you use a differential pressure transmitter or a gauge or absolute pressure transmitter to measure the pressure in a water pipe?

Differential pressure applications
In which kind of applications can you use a DP transmitter?

Pressure process accuracy
What’s the measurement error for a value of recorded pressure? If the manufacturer publishes an accuracy of 0.02 percent, is this only when first shipped or is it always this accurate? Is the accuracy of Bourdon tubes any different?


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