Return-Path: Received: from [65.54.169.60] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 574122 for flyrotary@lancaironline.net; Mon, 20 Dec 2004 11:52:31 -0500 Received-SPF: pass receiver=logan.com; client-ip=65.54.169.60; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Mon, 20 Dec 2004 08:52:00 -0800 Message-ID: Received: from 65.54.98.161 by BAY3-DAV30.phx.gbl with DAV; Mon, 20 Dec 2004 16:51:17 +0000 X-Originating-IP: [65.54.98.161] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" Subject: Fw: [FlyRotary] OAT problem? Date: Mon, 20 Dec 2004 11:48:36 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00EC_01C4E689.D728CD60" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0009.2900 Seal-Send-Time: Mon, 20 Dec 2004 11:48:36 -0500 X-OriginalArrivalTime: 20 Dec 2004 16:52:00.0819 (UTC) FILETIME=[399B3030:01C4E6B4] This is a multi-part message in MIME format. ------=_NextPart_000_00EC_01C4E689.D728CD60 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Something is not right. Make sure you connected the sensor return line = to the OAT bias line instead of ground like the other air temp sensors. = OAT is different because I wanted it to be able to read down to at = least -40 degrees F. It is not calibrated in C although it should be = possible to do that if you wanted. =20 After double checking all wire connections to it, let me know what you = see. The unit is tested with a bench reference sensor on the OAT = function so I'm fairly certain that the unit is working but it is = remotely possible that the sensor is bad. Tracy ----- Original Message -----=20 From: Bulent Aliev=20 To: Rotary motors in aircraft=20 Sent: Sunday, December 19, 2004 8:33 PM Subject: [FlyRotary] OAT problem? Hi Tracy, I connected OAT sensor today, but the display shows single = digit number 5-6. When I blew some hot air with the hair dryer on the = sensor, the numbers climbed to 11 and than settled to 5 after removing the heat? I wander if the reading is in Celsius? >> Homepage: http://www.flyrotary.com/ >> Archive: = http://lancaironline.net/lists/flyrotary/List.html ------=_NextPart_000_00EC_01C4E689.D728CD60 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
 

Something is not right.  Make sure you connected the sensor = return=20 line to the OAT bias line instead of ground like the other air temp=20 sensors.   OAT is different because I wanted it to be able to = read=20 down to at least -40 degrees F.  It is not calibrated in C although = it=20 should be possible to do that if you wanted. 
 
After double checking all wire connections to it, let me know what = you=20 see.  The unit is tested with a bench reference sensor on the OAT = function=20 so I'm fairly certain that the unit is working but it is remotely = possible that=20 the sensor is bad.
 
Tracy
----- Original Message -----
From: Bulent Aliev
To: Rotary motors in = aircraft
Sent: Sunday, December 19, 2004 = 8:33=20 PM
Subject: [FlyRotary] OAT = problem?

Hi Tracy, I connected OAT sensor today, but the display = shows=20 single digit
number 5-6. When I blew some hot air with the hair = dryer on=20 the sensor, the
numbers climbed to 11 and than settled to 5 after = removing=20 the heat? I
wander if the reading is in=20 Celsius?




>>  Homepage:  http://www.flyrotary.com/
>&= gt; =20 Archive:   http://lancai= ronline.net/lists/flyrotary/List.html
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