Inquiry (采购产品): Pressure Drop Test I need to run a pressure drop test. The pressure drop is across the fins of a power supply approximately 7", 6", 4". the testing requirement would be as follows: at a temperature of 25°C, and at sea level, when supplied with 10 cfm ± 10% the unit shall have a static pressure differential of 0.05 inH2O. When supplied with 50 cfm ± 10%, the unit shall have a static pressure differential of not less than 0.75 inH2O. The pressure drop is the static pressure differential measured across the power supply if the power supply was mounted in an air duct with equal upstream and downstream cross section. The cross sectional dimensions of the air duct shall be the same as that of the power supply. Thanks Donna Langford **** Hidden Message ***** Donna Langford 93402 Company: Rantec Power Systems Inc. E-mail: dlangford@rantec.com **** Hidden Message ***** dlangford@rantec.com