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Re: Air bubble in mercury barometer!
>Encoding: 42 TEXT
>Date: Mon, 22 Jun 1998 20:47:34 -0400
>Reply-To: "adockter@smtp.ix.netcom.com" <adockter@dfw-ix3.ix.netcom.com>
>Sender: Medical Physics Listserver <medphys@cwis-20.wayne.edu>
>From: "Arden E. Dockter" <adockter@IX.NETCOM.COM>
>Organization: Medical Physics Consulting, Inc.
>Subject: Re: Air bubble in mercury barometer!
>To: MEDPHYS@LISTS.WAYNE.EDU
>
>Hi All:
>Princo will give you instructions for this. If the bubble has migrated all
>the way to the top of the column, you need to refill the column. This
>requires a long skinny funnel and is perhaps best done by returning the
>barometer to Princo. If the bubble has stopped part way up the column, try
>turning the adjustment knob at the bottom of the cistern in so that the
>mercury level rises all the way to the top of the column. At this point it
>is safe to remove the barometer from the mounting board. Remove it, turn
>it upside down and gently tap the column to encourage the bubble to rise
>out of the column and into the cistern. Turn the unit right side up. Test
>the barometer by carefully adjusting the column a few cm below the top end
>of the tube then rotate it 30 degrees or so from vertical to either side.
> The mercury should rise and make a distinct click when it comes in contact
>with the top of the glass column. If a air is present the top of the
>mercury column will be cushoned and will not sound the click. If the unit
>passes this test, readjust the mercury to the top of the column and replace
>the barometer into the wall mounting board.
>
>Hope this Helps
>Arden E. Dockter
>Berne, NY 12023
>adockter@ix.netcom.com
>----------
>From: Xinquan Trent Ning[SMTP:XTNING@COMMHOSPINDY.ORG]
>Reply To: Medical Physics Mailing List
>Sent: Monday, June 22, 1998 6:57 PM
>To: MEDPHYS@cwis-20.wayne.edu
>Subject: Air bubble in mercury barometer!
>
>An air bubble was found in my Princo
>mercury barometer! Could some one tell
>me how to remove it?
>
>Trent Ning
>Community Hospitals Indiana
>
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