X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-lpp01m010-f52.google.com ([209.85.215.52] verified) by logan.com (CommuniGate Pro SMTP 5.4.4) with ESMTPS id 5389013 for flyrotary@lancaironline.net; Thu, 09 Feb 2012 08:49:01 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.215.52; envelope-from=rwstracy@gmail.com Received: by lagy4 with SMTP id y4so1353547lag.25 for ; Thu, 09 Feb 2012 05:48:25 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=snhzBPavUwjHeW3EyNKSN+B7v1TBz2ge/zxFiZBw6SU=; b=dKZdlAfj9kYDVXeOHq+LA8FTUgHKAobbRqAX+MDw5A9bHe2954pRDkx6qF/nK1X6oU giPx25GKSC7JjES/aVVAFry2mzSxGgmWZOXUyY25DrSDzVilamNgeekICX1S6kgmYeSs 5oF5tNfG9jHK38otjX4Ak6rwc22RuqDYP/FVw= MIME-Version: 1.0 Received: by 10.152.110.102 with SMTP id hz6mr1361994lab.21.1328795305198; Thu, 09 Feb 2012 05:48:25 -0800 (PST) Received: by 10.112.75.74 with HTTP; Thu, 9 Feb 2012 05:48:25 -0800 (PST) In-Reply-To: References: Date: Thu, 9 Feb 2012 08:48:25 -0500 Message-ID: Subject: Re: [FlyRotary] Re: one more thing From: Tracy To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=bcaec54eee6a25439b04b888444b --bcaec54eee6a25439b04b888444b Content-Type: text/plain; charset=ISO-8859-1 The EGT channels should be pretty accurate over the full range. Less calibration for these is necessary because a temp compensated thermocouple interface chip is used in the EM2/3. The EGT bar graphs are the only thing that don't read below 1000 deg. Temps below that are not significant (for EGT). The bargraph can then have higher resolution over the range of interest. Tracy On Wed, Feb 8, 2012 at 11:27 PM, wrote: > The egt can't read anything below around 800-1000 accurately f if I recall > correctly. I don't recall exactly, but it's several hundred degrees, maybe > as low as 180 or so when the engine is ambient- around 50 today. > Brian Trubee > > > > > -----Original Message----- > From: Bill Bradburry > To: Rotary motors in aircraft > Sent: Wed, Feb 8, 2012 8:17 pm > Subject: [FlyRotary] Re: one more thing > > Speaking of EGT calibration. If the EGT reads ambient air temps > accurately, does that mean that it is accurate throughout its range??? If > not, how do you check the temp when it is reading 15-1600 degrees?? > > Bill B > > ------------------------------ > *From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] > *On Behalf Of *bktrub@aol.com > *Sent:* Wednesday, February 08, 2012 9:17 PM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] one more thing > > Also, I forgot to mention- in looking at the calibration for my EGTs I > have the same settings for both- Scale factor is 1.943 and the low end > offset is 38. Is this the correct factory setting? > > Thanks, > Brian Trubee > --bcaec54eee6a25439b04b888444b Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable The EGT channels should be pretty accurate over the full range.=A0 Less cal= ibration for these is necessary because a temp compensated thermocouple int= erface chip is used in the EM2/3.=A0

=A0The EGT bar graphs are the = only thing that don't read below 1000 deg. =A0 Temps below that are not= significant (for EGT).=A0 The bargraph can then have higher resolution ove= r the range of interest.

Tracy

On Wed, Feb 8, 2012 at 11:27 P= M, <bktrub@aol.com<= /a>> wrote:
The egt can't read anything below around 800-1000 accurately=A0f i= f I recall correctly.=A0 I don't recall exactly, but it's several h= undred degrees, maybe as low as 180 or so when the engine is ambient- aroun= d 50 today.
Brian Trubee



-----Original Mes= sage-----
From: Bill Bradburry <bbradburry@bellsouth.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Wed, Feb 8, 2012 8:17 pm
Subject: [FlyRotary] Re: one more thing

Speaking of EGT calibration.= =A0 If the EGT reads ambient air temps accurately, does that mean that it i= s accurate throughout its range???=A0 If not, how do you check the temp whe= n it is reading 15-1600 degrees??
=A0
Bill B
=A0
From: Rotary motor= s in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of bktrub@aol.com
Sent: Wednesday, February 08= , 2012 9:17 PM
To: Rotary motors in aircraf= t
Subject: [FlyRotary] one mor= e thing
=A0
Also, I forgot to mention- in looking= at the calibration for my EGTs I have the same settings for both- Scale fa= ctor is 1.943 and the low end offset is 38. Is this the correct factory set= ting?
=A0
Thanks,
Brian Trubee

--bcaec54eee6a25439b04b888444b--