X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: <13brv3@bellsouth.net> Received: from imf24aec.mail.bellsouth.net ([205.152.59.72] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 913905 for flyrotary@lancaironline.net; Mon, 25 Apr 2005 12:08:26 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.72; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf24aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050425160740.LOKC2434.imf24aec.mail.bellsouth.net@rd> for ; Mon, 25 Apr 2005 12:07:40 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "Flyrotary List" Subject: EM-2 fuel flow question Date: Mon, 25 Apr 2005 11:07:48 -0500 Message-ID: <013801c549b0$ecf443b0$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0139_01C54987.041E3BB0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 This is a multi-part message in MIME format. ------=_NextPart_000_0139_01C54987.041E3BB0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Tracy, and all, =20 I finally decided to try to calibrate the fuel flow reading on my EM-2, = and don't quite understand what I'm seeing. I zeroed the fuel reading the = last time I put fuel in the plane, but yesterday, when I put 10 gallons in, = the EM-2 said 20.7 had been used. I spent some time fiddling with alarm = limits, and then noticed that the fuel read 22.4. Since the engine isn't = running, this represents poor fuel economy :-)=20 =20 I also noticed that the EM-2 always seems to read .3 gph when the engine = is off, but even that wouldn't account for the almost two gallons in the = few minutes it took to set the alarm limits. I tried turning the EC-2 on, = and then off, to see if that changed the reading, but it stayed at .3 gph. = I don't think I can change the sensor offset on this one :-) =20 Unless there's a simple solution to this, I'll just ignore it, and defer = the fuel flow calibration until the new chips arrive. =20 =20 Cheers, Rusty (anyone want a Sonerai-II) ------=_NextPart_000_0139_01C54987.041E3BB0 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Message
Tracy, and=20 all,
 
I finally = decided to try to=20 calibrate the fuel flow reading on my EM-2, and don't quite understand = what I'm=20 seeing.   I zeroed the fuel reading the last time I put fuel = in the=20 plane, but yesterday, when I put 10 gallons in, the EM-2 said 20.7 had = been=20 used.  I spent some time fiddling with alarm limits, and=20 then noticed that the fuel read 22.4.   Since the engine = isn't=20 running, this represents poor fuel economy :-) 
 
I also = noticed that=20 the EM-2 always seems to read .3 gph when the engine is off, but even = that=20 wouldn't account for the almost two gallons in the few minutes it took = to set=20 the alarm limits.  I tried turning the EC-2 on, and then off, = to see=20 if that changed the reading, but it stayed at .3 gph.  I don't = think I can=20 change the sensor offset on this one :-)
 
Unless there's = a simple=20 solution to this, I'll just ignore it, and defer the fuel flow = calibration=20 until the new chips arrive.   
 
Cheers,
Rusty (anyone = want a=20 Sonerai-II)
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