It is important to keep the filters clean and replaced on the proper interval for the proper operation of the Weld Station Aire. The interval when the filters must be changed depends upon the specific application. Welding and grinding frequency, the type of particulate that is being removed, the type of filters being used, and the type of welding being performed all effect the filter replacement interval. When prefilter is being used, and using default filters, the filter needs to be replaced when reaching a pressure drop of 2 in. H 2 O. The process for determining your specific filter change interval is based on many variables. Please feel free to establish a filter change interval that meets you application and desired performance results. By properly monitoring the filters you will improve the efficiency of the units. Proper filter replacement is important to optimal performance of the Weld Station Aire Where to Start Start by making copies of the attached log sheet. This log sheet should be filled out for each Weld Station you have in your system. Make a physical check to ensure that the smoke / particulate is being removed through the intakes spark baffles. This can be done by a simple visual check during normal operation. There should be a reduced level of visible smoke when the unit is in operation. During maintenance, examine the intake spark baffle at the back of the welding booth(s). These filters should be washed when they become visibly dirty / contaminated. The differential pressure sensor does measure across intake spark baffles; however, visual inspection is required.
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