Thanks for the info. The installers had the holes in the tube parallel to flow so I switched it around and have a stable reading. We are using a Building Automation System to control the VFD and the control seems great so far. In my experimentation, I drilled a hole in the duct beside the pitot...
Hello Group,
I am interested in measuring Duct Static pressure usint a Setra 0-5" WC 4-20mA pressure transmitter to control a VFD. How should I terminate my high pressure hose into the duct. I found at one of our suppliers what they call a Pitot tube which is about 4 inches long by and has...
