Digital Absolute Permmeter

Simply place your specimen on the rubber pedestal and press start. With the addition of specifically designed accessories, the Permmeter can also measure the permeability of raw foundry sand, shell coated foundry sand, and refractory coatings that are used in the foundry industry.

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Key Advantages:

• Uses highly sensitive and accurate electronic sensors and digital timers to measure the controlled air volume.
• The permeability function has been corrected to compensate for any fluctuations in air pressure and eliminate the unit’s own resistance to air passage.
• Easy to operate and very repeatable; only requires a single touch operation.
• Can be digitally calibrated by the operator with the purchase of the 42132 permeability standard.
• Single piece cast aluminum housing, which makes it extremely durable.

Such as the Mold Permeability Accessory (Model 42105B) and the Base Permeability Accessory (Model 42105C).

This feature enables the identification of permeability of a porous body attached to another porous body, provided that it is possible to previously determine the permeability of one of them. This is the case of permeability of a wash applied to a permeable substrate, for instance, a washed core. The final results are shown in the display, with no need for calculations.

The unit includes an Electro-valve that controls the compressed air flow which fills and therefore raises the gasometric chamber up to a certain height, after which the inlet flow is stopped, and the measuring stage starts.

The absolute determination of permeability is done by measuring the time required for a specific air volume at constant pressure to flow through the specimen or body being tested.

The permeability of either a standard 2 in. x 2 in. AFS or 50mm x 50mm metric foundry sand specimen can automatically be measured.

COMPONENTS INCLUDED

• Pneumatic Regulator/Filter
• Pneumatic Tubing (Approximately 1 m (3’)
• Pneumatic Fitting (Connects pneumatic tubing to the pneumatic regulator/filter outlet)

Still using a Simpson Digital Absolute Permmeter from before 2009?

Older units have outdated, non-repairable components and no easy service options. New models are CE Certified, safer, and more reliable—offering the precision and protection your lab needs.

Check the nameplate on the back for the manufacturing year.The first four digits represent the month and year. For example, 0109 means it was built in January 2009.

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