AIR FILTERING DEVICE WITH SALT LOAD DETERMINATION AND METHOD FOR MONITORING FILTRATION
First Claim
1. An air filter device comprising an air flow intake and an air outlet and at least one air filter unit including a filter medium capable of removing particulate material and/or airborne molecular contamination (AMC) from an air flow passing through the filter unit, said filter medium having an upstream surface directed towards the air flow intake, and a downstream surface directed towards the air flow outlet, and a salt load sensor for determining presence of salt entrapped by the filter medium is provided in connection to the filter medium, said filter device being arranged to be able to provide an output corresponding to the amount of salt entrapped by the filter medium by said salt load sensor.
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Abstract
An air filter device includes an air flow intake, an air outlet and at least one air filter including a filter medium capable of removing particulate material and/or airborne molecular contamination (AMC) from an air flow passing through the filter. The amount of salt entrapped by the filter medium is determined, and the filter device is arranged to be able to provide an output corresponding to the salt load value. A method of monitoring the filtration condition of a filter uses a filter monitoring system, which includes the air filter device and a control. The control includes a memory and a processor. The memory is arranged to store computer readable code that executes the method.
21 Citations
16 Claims
- 1. An air filter device comprising an air flow intake and an air outlet and at least one air filter unit including a filter medium capable of removing particulate material and/or airborne molecular contamination (AMC) from an air flow passing through the filter unit, said filter medium having an upstream surface directed towards the air flow intake, and a downstream surface directed towards the air flow outlet, and a salt load sensor for determining presence of salt entrapped by the filter medium is provided in connection to the filter medium, said filter device being arranged to be able to provide an output corresponding to the amount of salt entrapped by the filter medium by said salt load sensor.
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2. (canceled)
Specification