Cyclic Compression Porometer Vs. The Filter Cartridge Tester: How Do They Differ?
- pmiappofficial
- May 17, 2021
- 3 min read
Automated Filter Cartridge Tester and Cyclic Compression Porometer are the two machines that have evolved mundane and complex testing procedures into efficient tasks. Industries have now achieved efficiency in processes resulting in higher operational productivity.
Yet, you need to know which of these two is better suited for your particular industry. Both of these machines differ in functionality and operations. So, let's help you out by comparing the two so that you can better understand which one you need to invest in.
You might also like: Difference Between Filter Integrity Analyzer Vs Cyclic Compression Porometer
Cyclic Compression Porometer Against The Filter Cartridge Tester
Cyclic Compression Porometer

The Cyclic Compression Porometer applies cyclic stress on a sample and measures the pore structure characteristics after a desired number of cycles. The sample is loaded in the chamber and is subjected to stress processes in defined stress limits.
By the end of the desired amount of stress cycles, the pressure of a non-reacting gas on one side of the sample increases to initiate gas flow through pores. This pressure and its flow rates are measured. A wetting liquid spontaneously fills the pores in the sample. The gas pressure and flow rates are then measured through the wet sample.
After data acquisition, the sample is re-wetted and again subjected to cyclic compression. Pressure and flow rates are measured after the desired number of cycles. The test is then continued to acquire data as a function of the number of stress cycles.
Automated Filter Cartridge Tester

The Automated Filter Cartridge Tester provides an entirely automated through-pore analysis of complete filter cartridges of various geometries. This machine's tests include pore size distribution, mean pore size, gas, liquid, bubble point, filter integrity, and Frazier permeability.
The sample chamber design permits cartridges with a diameter and length over a wide range from several inches to several feet. This works because the operator first places the filter on the lower half of the filter holder.
Next, the pneumatic cylinder lowers the top half of the filter holder, and liquid is passed through the filter. Simultaneous measurement of the upstream and downstream concentration levels is calculated. The particles that penetrate are valued and determined from the ratio of these two readings.
The pressure transducers determine filter resistance and flow rate. Pressure and porometer readings are taken between every test to determine the zero counterbalances and circumstantial values. Later, the microprocessor automatically compresses these values when computing the results. Once the test is complete, the filter holder will open automatically.
What's more, the pressure capabilities of this machine can reach from 500 psi up to 2000 psi with microflow technology. This makes the pressure accuracy is 0.15% of the reading. The flow capabilities can go up to 200 LPM if you go with the standard version.
However, you can also opt for an optional version that can reach up to 10,000 LPM. The Resolution is 1:60,000 F.S. Pore Diameter is 0.013 µm with 0.002 µm if you also consider the Capillary Condensation Flow Porometer. The maximum Pore diameter is 200 µm. The Automated Filter Cartridge Tester allows wetting liquids that include water, oil, alcohol, mineral oil, SilwickTM, PorewickTM, GalwickTM, and others
Some additional features include a real-time graphical display for checking test status and results through operations. What's more, the maximum length for tests is approximately 10 minutes per sample, which is the most time-efficient by industrial standards. The machine accepts filter cartridges based on a variety of geometries. There's also a transparent sample chamber for visual confirmation.
Concluding The Differences,
Both these machines are different in their basic functionality. The Cyclic Compression porometer applies cyclic stress on the sample to yield measurements. In contrast, the automated filter cartridge tester performs through-pore analysis by running a series of tests. Knowing their differences which machine will you invest in?
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