Ask Me Help Desk

Ask Me Help Desk (https://www.askmehelpdesk.com/forum.php)
-   Facilities Engineering (https://www.askmehelpdesk.com/forumdisplay.php?f=499)
-   -   How do I measure inches of water column ? (https://www.askmehelpdesk.com/showthread.php?t=401371)

  • Sep 30, 2009, 12:21 PM
    skelley
    How do I measure inches of water column ?
    How do I measure inches of water column in a exhaust for a reflow oven ?
  • Sep 30, 2009, 05:47 PM
    KISS

    Do you mean static pressure?

    The first two links give you the procedure:

    Google

    Here is a particular probe and an optional "surge damper" device

    http://www.dwyer-inst.com/PDF_files/...ensors_cat.pdf

    In a round duct what you will find is that usually near the center the flow is more laminar, stable and near a maximum. Near the edges, you get more of a turbulent flow.

    You need to be at least a duct diameter away from say the exit and another duct diameter before it hits the fan.

    If your going to be doing this as part of a routine inspection consider installing ports and use a differential pressure sensor.

    W.C. is yet another unit like PSI

    Example: Digital Manometer, Dual Input -TPI 621 - Mfg# 621

    A differential manometer may be more useful. For single ended use, leave one port open to atmosphere.

    Dwyer Engineering is a major manufacturer of air velocity and pressure equipment.

    I hope I helped.

  • All times are GMT -7. The time now is 02:55 PM.