Did you know you can test the accuracy of your equipment before you get on site? As a manufacturer, we often get tech support calls from auditors who are on site, and wondering if their equipment is providing an accurate reading. Thankfully, there is an easy way to test both your duct tester and gauge, regardless of manufacturer, before you get on site. There is, after all, nothing worse than showing up on site, and not being confident the equipment is working properly.

For your gauge or manometer, perform a simple "Field check of tubing and digital gauges". This calibration check can be completed before an important test, checking gauge accuracy to ensure it remains within original specifications. A simple procedure of connecting both channels of the manometer to each other will allow you to verify your equipment accuracy, and check the tubing for leakage and blockage because they are also a major source of testing errors.

For the duct testing fan, you can test the accuracy with a field calibration plate - a simple 5 minute check to verify the equipment. You should check your duct tester accuracy in both directions, pressurization and depressurization, and then compare with manufacturer specifications. Ideally, your fan should provide equally accurate results in both directions. Ask your equipment manufacturer for a field calibration plate, although you can test any fan on any calibration place, or you can make your own! All you need is a plate with a hole of a known size. For instructions and the full procedure go to: http://www.retrotec.com/residential/Articles.aspx.



Views: 58

Comment

You need to be a member of Home Energy Pros to add comments!

Join Home Energy Pros

Comment by Dan Wildenhaus on December 16, 2010 at 9:43am

Silvie,  Thanks for sharing the procedure!

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

Latest Activity

Bud Poll replied to randy tolowski's discussion Another unvented roof question
"I've removed caulking that was over 30 years old and it outlasted the materials to which it…"
1 hour ago
Profile IconAmanda Hallock, Kalvis, Tyler Grubbs and 6 more joined Home Energy Pros
4 hours ago
Corbett Lunsford posted videos
4 hours ago
Sean Lintow Sr replied to randy tolowski's discussion Another unvented roof question
5 hours ago
randy tolowski posted discussions
7 hours ago
Todd Collins replied to Tom Strumolo's discussion Ancient (70's) wall foam insulation, now a powder.
"What did you find about the dust?  "
11 hours ago
Susan E. Buchan commented on Shawna Henderson's blog post Drainwater Heat Recovery Units & Water Efficiency
"Makes sense, Shawna. Thanks"
11 hours ago
Shawna Henderson commented on Shawna Henderson's blog post Drainwater Heat Recovery Units & Water Efficiency
"Susan, I'm not sure that insulation on the unit would be of great benefit, as the drainwater…"
11 hours ago

© 2015   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service