Enter appropriate numbers and units from your calibration certificate and the unit of measure you wish the calibration variables to be displayed for entry into your air tightness testing software. For the vast majority of fans leave the Polynomial check box unticked as this is specifically for the B4 and smaller range plates on the Retrotec 5000 and 6000 series fans.
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ATTMA have a full complaints procedure if you are not happy with ATTMA’s service. Our full complaints procedure can be found here.
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