JIG FOR MEASURING AIR VOLUME OF DUCT

摘要

PURPOSE: A jig for measuring air volume of duct is provided to achieve an improved user convenience and obtain an accurately measured value by fixing the air volume measuring device at the correct position through the use of the jig. CONSTITUTION: A jig comprises a magnetic stand(1) for fixing the jig to a duct; rotary ratchets(2,4) and linear transporting ratchets(3,5) for inserting an air volume measuring device(7) into a measuring hole and fixing the air volume measuring device at the position to be measured; and an estimating device holder(6) for fixing the air volume measuring device. The magnetic stand is attached to the duct, and the air volume measuring device is fixed to the magnetic stand through ratchets. Thus, inconvenience where the measuring personnel manually fixes the measuring device is eliminated. The estimating device holder has a scale plate for an accurate fixation of the measuring device.