Share 'Trick for those who have ever input the wrong range on their gauge - blower door tech'
I switched the Range Ring, but forgot to change the Range setting on my gauge. I recorded the Flow and left the site – do I have to re-test? Thankfully, NO, there’s an easy fix.
Just use the flow chart for your fan to locate the correct results!
Let’s say you read 33 CFM with your gauge set to Mid. But, yikes, later you remembered your DucTester actually had the Low Range Ring attached. You r…
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