X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 50 [XX] (67%) URL: contains host with port number (33%) HEADERS: mail has MS Outlook properties but missing "Outlook" in "X-Mailer" Headers Return-Path: Received: from bay0-omc1-s13.bay0.hotmail.com ([65.54.246.85] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 2042126 for flyrotary@lancaironline.net; Sun, 13 May 2007 11:49:36 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.54.246.85; envelope-from=lors01@msn.com Received: from hotmail.com ([65.54.250.87]) by bay0-omc1-s13.bay0.hotmail.com with Microsoft SMTPSVC(6.0.3790.2668); Sun, 13 May 2007 08:48:58 -0700 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Sun, 13 May 2007 08:48:57 -0700 Message-ID: Received: from 4.171.150.129 by BAY115-DAV15.phx.gbl with DAV; Sun, 13 May 2007 15:48:53 +0000 X-Originating-IP: [4.171.150.129] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: EC2 question Date: Sun, 13 May 2007 11:48:49 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00DA_01C79554.AB879750" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.50.0034.2000 Seal-Send-Time: Sun, 13 May 2007 11:48:49 -0400 X-OriginalArrivalTime: 13 May 2007 15:48:57.0958 (UTC) FILETIME=[37E1E860:01C79576] Return-Path: lors01@msn.com This is a multi-part message in MIME format. ------=_NextPart_000_00DA_01C79554.AB879750 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable The EM2 will first try to read the EC2 MAP sensor. If it does not get = that, it reads the internal EM2 MAP sensor (this is for Lycomings = without an EC2). So yes, you do not necessarily have to have the MAP = sensor on the EM2 connected if you have an EC2. Tracy ----- Original Message -----=20 From: hoursaway1@comcast.net=20 To: Rotary motors in aircraft=20 Sent: Saturday, May 12, 2007 6:58 PM Subject: [FlyRotary] Re: EC2 question Another question about EC2-EM2 conections, I think I read somewhere on = the flyrotary about MAP conections, if I have both do I need the MAP = vacume conection to EM2 or will EC2 supply info and if so what to do = about open MAP port at EM2? Will need EM2 update, how long will you be = gone? Thanks, David RV6A Rotary, fus. to paint shop end of month. -------------- Original message --------------=20 From: "Tracy Crook" =20 You can cut it off without grounding anything but of course the auto = tune function of the EM2 will not work without the O2 sensor input. = The mixture indicator on EM2 will drift around unless you ground it. = This is one example of where you can usually parallel two instruments = from one sensor and it will work. Mixture monitors just look at = voltage from the sensor and are usually very high input impedance so = they should not load down the sensor. BTW Buly, when I looked at your EC2 map table prior to the snubber = update it was VERY erratic. I was surprised the engine ran well enough = to fly. Take a look at it with your EM2 and make sure it looks = reasonable after you do some tuning.=20 For instance, if two adjacent MAP addresses are at opposite ends = of the scale, it is not reasonable and you should investigate. It is = very instructive to fly with the MAP table screen up on the EM2 in track = mode and watch the table pointer (blinking bargraph bar) and the mixture = monitor. Move the throttle around so that the pointer moves through the = suspected problem areas and insure that the mixture monitor stays in the = middle. If it doesn't, adjust the MAP address that causes mixture to go = out of proper range. =20 Tracy ----- Original Message -----=20 From: atlasyts@bellsouth.net=20 To: Rotary motors in aircraft=20 Sent: Thursday, May 10, 2007 9:58 PM Subject: [FlyRotary] Re: EC2 question I'm not using the O2 sensor lead for the EM2. I wander if I can = just cut it off at the plug, or have to ground it? I have installed a = wide band O2 sensor with it's own processor and display. Buly=20 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html ------=_NextPart_000_00DA_01C79554.AB879750 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
The EM2 will first try to read the EC2 MAP sensor.   If = it does=20 not get that, it reads the internal EM2 MAP sensor (this is for = Lycomings=20 without an EC2).  So yes, you do not necessarily have to have the = MAP=20 sensor on the EM2 connected if you have an EC2.
 
Tracy
----- Original Message -----
From: hoursaway1@comcast.net =
To: Rotary motors in = aircraft
Sent: Saturday, May 12, 2007 = 6:58=20 PM
Subject: [FlyRotary] Re: EC2=20 question

 
Another question about EC2-EM2 conections, I think I read = somewhere on=20 the flyrotary about MAP conections, if I have both do I need the MAP = vacume=20 conection to EM2  or will EC2 supply info and if so what to do = about open=20 MAP port at EM2?   Will need EM2 update, how long will you = be=20 gone?  Thanks,  David  RV6A Rotary,  fus. to paint = shop=20 end of month.
--------------=20 Original message --------------
From: "Tracy Crook"=20 <lors01@msn.com>
You can cut it off without grounding anything but of course the = auto=20 tune function of the EM2 will not work without the O2 sensor=20 input.   The mixture indicator on EM2 will drift = around=20 unless you ground it.  This is one example of where you can = usually=20 parallel two instruments from one sensor and it will = work.  =20 Mixture monitors just look at voltage from the sensor and are = usually very=20 high input impedance so they should not load down the sensor.
 
BTW Buly, when I looked at your EC2 map table prior to the = snubber=20 update it was VERY erratic.  I was surprised the engine = ran well=20 enough to fly.  Take a look at it with your EM2 and make sure = it looks=20 reasonable after you do some tuning. 
 
  For instance, if two adjacent MAP addresses are at = opposite ends=20 of the scale, it is not reasonable and you should = investigate.  =20 It is very instructive to fly with the MAP table screen up on the = EM2 in=20 track mode and watch the table pointer (blinking bargraph bar) and = the=20 mixture monitor.  Move the throttle around so that the pointer = moves=20 through the suspected problem areas and insure that the mixture = monitor=20 stays in the middle. If it doesn't, adjust the MAP address that = causes=20 mixture to go out of proper range. 
 
Tracy
----- Original Message ----- =
From: atlasyts@bellsouth.net =
To: Rotary motors in = aircraft=20
Sent: Thursday, May 10, = 2007 9:58=20 PM
Subject: [FlyRotary] Re: = EC2=20 question


I'm not using the O2 sensor lead for the EM2. I = wander=20 if I can just cut it off at the plug, or have to ground it? I have = installed a wide band O2 sensor with it's own processor and=20 display.
Buly


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