Return-Path: Received: from fed1rmmtao09.cox.net ([68.230.241.30] verified) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 378293 for flyrotary@lancaironline.net; Wed, 25 Aug 2004 17:38:53 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.30; envelope-from=ALVentures@cox.net Received: from BigAl ([68.107.116.221]) by fed1rmmtao09.cox.net (InterMail vM.6.01.03.02.01 201-2131-111-104-103-20040709) with ESMTP id <20040825213823.ZLWB28971.fed1rmmtao09.cox.net@BigAl> for ; Wed, 25 Aug 2004 17:38:23 -0400 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: EM2 users Date: Wed, 25 Aug 2004 14:38:26 -0700 Message-ID: <000001c48aeb$daea6ac0$6400a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C48AB1.2E8B92C0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C48AB1.2E8B92C0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable =20 Subject: [FlyRotary] Re: EM2 users =20 Local barometric pressure is 30.02, so I expect it to give me this = number as MP. With EC2 turned off it reads MP as 29.2 - I assume it is reading = this with the sensor in the EM2. With EC2 on (data feed from EC2) it reads = 32.3. Neither of the readings is correct. Should I be concerned? First, I'd like to point out that I don't have the best answers for your questions, but I'll say what I can. =20 =20 Tracy explained that there's only one calibration area for the MAP = reading, so you can only have one sensor correct. Since you have an EC-2, that's = the one you'll use. As for the reading you're getting with the EC-2 turned = on, but engine not running, ignore it. Mine read 20.4, and I'm guessing = it's the last reading that it sampled when the engine was running =20 Good point. =20 Battery voltage reads about .75 lower than my voltmeter reads at the breaker. I haven't checked the voltage cal on mine, but imagine that if anything = is correct, this would be. When you say at the breaker, do you mean the breaker that feeds the EM-2? =20 At the feed terminal to the wire that goes to the EM2 - no diodes. Interesting that it read .40 low on battery 1 that had 12.48 volts and = .95 low on battery 2 that was at 12.2 volts. It was giving me LOW VOLTAGE warning on battery one, so the alarm must be just under 12. The RWS air temp sensors (I have 3) all read 6-8 degrees lower than = actual air temp (75F at the time). I expect these should be accurate. If you're referring to the 3 wire sensors, Tracy said they were always = very accurate by definition, assuming they're wired correctly Somewhere in the manual he suggests using these as reference, so I'm a = bit surprised these are off. They are all three wired correctly. On a more amusing note; I set the fuel quantity at 5.0, and it read that = for the first day. Today it read 4.9 and I haven't run the engine. Not = very good mileage. Thanks for input. I'll go play some more. Al ------=_NextPart_000_0001_01C48AB1.2E8B92C0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

 

Subject: [FlyRotary] Re: EM2 users

 

Local barometric pressure is 30.02, so I = expect it to give me this number as MP.  With EC2 turned off it reads MP as 29.2 – I assume it is reading this with the sensor in the EM2.  = With EC2 on (data feed from EC2) it reads 32.3.  Neither of the readings is correct.  Should I be concerned?

First, I'd like = to point out that I don't have the best answers for your questions, but I'll say = what I can. 

 

Tracy = explained that there's only one calibration area for the MAP reading, so you can = only have one sensor correct.  Since you have an EC-2, that's the one = you'll use.  As for the reading you're getting with the EC-2 turned on, = but engine not running, ignore it.  Mine read 20.4, and I'm guessing = it's the last reading that it sampled when the engine was = running

 

Good point.

 

Battery voltage reads about .75 lower than my = voltmeter reads at the breaker.

I haven't = checked the voltage cal on mine, but imagine that if anything is correct, this would be.  When you say at the breaker, do you mean the breaker that = feeds the EM-2? 

At the feed terminal to the wire that = goes to the EM2 – no diodes.  Interesting that it read .40 low on = battery 1 that had 12.48 volts and .95 low on battery 2 that was at 12.2 volts.  = It was giving me LOW VOLTAGE warning on battery one, so the alarm must be just = under 12.

The RWS air temp sensors (I have 3) all read = 6-8 degrees lower than actual air temp (75F at the time).  I expect = these should be accurate.

If you're referring to the 3 wire sensors, = Tracy said they were always very accurate by definition, assuming they're = wired correctly

Somewhere in the manual he suggests using = these as reference, so I’m a bit surprised these are off.  They are = all three wired correctly.

On a more amusing note; I set the fuel = quantity at 5.0, and it read that for the first day.  Today it read 4.9 and I = haven’t run the engine.  Not very good mileage.

Thanks for input.  I’ll go = play some more.

Al

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