X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120] verified) by logan.com (CommuniGate Pro SMTP 5.4.4) with ESMTP id 5391493 for flyrotary@lancaironline.net; Fri, 10 Feb 2012 17:44:43 -0500 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.120; envelope-from=eanderson@carolina.rr.com Return-Path: X-Authority-Analysis: v=2.0 cv=XsF4yC59 c=1 sm=0 a=g3L/TDsr+eNLfIieSKfGkw==:17 a=5JVRJzpbFVcA:10 a=pGLkceISAAAA:8 a=glYVDZ00AAAA:8 a=3oc9M9_CAAAA:8 a=Ia-xEzejAAAA:8 a=pedpZTtsAAAA:8 a=9tjaqNWvCnmgMPPGik8A:9 a=_b7v6JAuhQYzATueLZwA:7 a=QEXdDO2ut3YA:10 a=MSl-tDqOz04A:10 a=XCwpvLtFMdsA:10 a=U8Ie8EnqySEA:10 a=EzXvWhQp4_cA:10 a=eJojReuL3h0A:10 a=iYLC_4kUBIxGDwnS:21 a=pi73WRnOtKuZzCNy:21 a=UbF9cuN-y-gSXypBG6MA:9 a=uuZ2vFW4LL1kxpVAodAA:7 a=tXsnliwV7b4A:10 a=g3L/TDsr+eNLfIieSKfGkw==:117 X-Cloudmark-Score: 0 X-Originating-IP: 174.110.170.10 Received: from [174.110.170.10] ([174.110.170.10:57124] helo=EdPC) by cdptpa-oedge02.mail.rr.com (envelope-from ) (ecelerity 2.2.3.46 r()) with ESMTP id 2A/5F-04325-9BD953F4; Fri, 10 Feb 2012 22:44:10 +0000 Message-ID: From: "Ed Anderson" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: EM2 was one more thing Date: Fri, 10 Feb 2012 17:43:53 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001D_01CCE81B.8E78E370" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 This is a multi-part message in MIME format. ------=_NextPart_000_001D_01CCE81B.8E78E370 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Yeah, Chris, I really hate when and instrument does that - if it breaks = you can find the problem and fix it - but, this intermittent stuff just = drives you crazy - because about the time you put it on the bench and = break out the soldering iron - the dang thing works fine. Fortunately the EM2 is not flight critical - although I personally would = not like to fly without my monitor. Ed From: Chris Barber=20 Sent: Friday, February 10, 2012 3:50 PM To: Rotary motors in aircraft=20 Subject: [FlyRotary] Re: EM2 was one more thing I so looove this hobby. Got out to the hangar today and the EM2 came = right up properly. Shhhhhesh.=20 Sent from my iPhone 4 On Feb 10, 2012, at 9:24 AM, "Tracy" wrote: It's not just ground continuity that is important, it is routing of = the ground circuit, especially on composite aircraft.. But your = problem may be just a broken EM2 since it was working before. Tracy=20 On Thu, Feb 9, 2012 at 6:48 PM, Chris Barber = wrote: Grounds already checked. It is my first task these days. Thanks. =20 Sent from my iPhone 4 On Feb 9, 2012, at 5:32 PM, "bktrub@aol.com" wrote: Check all gounds for that unit.=20 Brian Trubee -----Original Message----- From: Chris Barber To: Rotary motors in aircraft Sent: Thu, Feb 9, 2012 2:31 pm Subject: [FlyRotary] EM2 was one more thing Well, Murphy must have a corner on my hangar. During a brief = engine run today everything was fine. I added a little power to bump the = catering nose wheel around and my EM2 lost all it's information and = started displaying sporadically flashing rows of blocks and lines, then = occasionally several numeral "5"s. Tried pushing buttons. Cycled circuit = breaker. Turned ships Power on and off. No Joy. I still have my Dynon = EFIS/monitor but the RWS unit is playing games. The engine is currently = running fine. Turned it off and on as well too=20 Whoops, now I see "2"'s inside some of the flashing blocks.=20 Ideas please.=20 Chris Sent from my iPhone 4 On Feb 9, 2012, at 3:36 PM, "Chris Barber" = wrote: Tracy,=20 On the topic of EGT's, I am using your engine monitor in = conjunction with my Dynon engine monitor. I has some problems with the = RWS EGT reading do I am letting the Dynon monitor the EGT's.=20 I wrote asking about a way to disable the EGT readings on the = RWS monitor. You suggested connecting the EGT leads together. However, = this did not work. Any other ideas? I am quite close to flying, I hope = so I would prefer not to have to send it in if possible and may wait = till after trying to gly as the Dynon gives redundancy, but obviously = does little for tuning.=20 Thanks.=20 Chris Barber Houston Sent from my iPhone 4 On Feb 9, 2012, at 7:49 AM, "Tracy" wrote: 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. =20 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=20 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.=20 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=20 -------------------------------------------------------------------- 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 ------=_NextPart_000_001D_01CCE81B.8E78E370 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Yeah, Chris,  I really hate when and = instrument does=20 that - if it breaks you can find the problem and fix it - but, this = intermittent=20 stuff just drives you crazy - because about the time you put it on the = bench and=20 break out the soldering iron - the dang thing works fine.
 
Fortunately the EM2 is not flight critical - = although I=20 personally would not like to fly without my monitor.
 
Ed

Sent: Friday, February 10, 2012 3:50 PM
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: EM2 was one more = thing

I so looove this hobby.  Got out to the hangar today and the = EM2 came=20 right up properly. Shhhhhesh. 

Sent from my iPhone 4

On Feb 10, 2012, at 9:24 AM, "Tracy" <rwstracy@gmail.com> = wrote:

It's not just ground continuity that is important, it is routing = of the=20 ground circuit, especially on composite aircraft..   But = your=20 problem may be just a broken EM2 since it was working = before.

Tracy=20

On Thu, Feb 9, 2012 at 6:48 PM, Chris Barber = <cbarber@texasattorney.net&g= t;=20 wrote:
Grounds already checked. It is my first task these days. = Thanks. =20


Sent from my iPhone 4

On Feb 9, 2012, at 5:32 PM, "bktrub@aol.com" <bktrub@aol.com> wrote:

Check all gounds = for that=20 unit.
 
Brian Trubee


-----Original Message-----
From: Chris Barber = <cbarber@texasattorney.net>
To: Rotary = motors in=20 aircraft <flyrotary@lancaironline.net>
Sent: Thu, Feb 9, 2012 2:31 pm
Subject: = [FlyRotary] EM2=20 was one more thing

Well, Murphy must have a corner on my hangar. During a brief = engine=20 run today everything was fine. I added a little power to bump the = catering=20 nose wheel around and my EM2 lost all it's information and started = displaying sporadically flashing rows of blocks and lines, then=20 occasionally several numeral "5"s. Tried pushing buttons. Cycled = circuit=20 breaker. Turned ships Power on and off. No Joy. I still have my = Dynon=20 EFIS/monitor but the RWS unit is playing games. The engine is = currently=20 running fine. Turned it off and on as well too 

Whoops, now I see "2"'s inside some of the flashing=20 blocks. 

Ideas please. 

Chris

Sent from my iPhone 4

On Feb 9, 2012, at 3:36 PM, "Chris Barber" <cbarber@texasattorney.net> = wrote:

Tracy, 

On the topic of EGT's, I am using your engine monitor in=20 conjunction with my Dynon engine monitor. I has some problems = with the=20 RWS EGT reading do I am letting the Dynon monitor the = EGT's. 

I wrote asking about a way to disable the EGT readings on = the RWS=20 monitor. You suggested connecting the EGT leads together. = However, this=20 did not work. Any other ideas?  I am quite close to flying, = I hope=20 so I would prefer not to have to send it in if possible and may = wait=20 till after trying to gly as the Dynon gives redundancy, but = obviously=20 does little for tuning. 

Thanks. 

Chris Barber
Houston


Sent from my iPhone 4

On Feb 9, 2012, at 7:49 AM, "Tracy" <rwstracy@gmail.com> wrote:

The EGT channels should be pretty accurate over the full=20 range.  Less calibration for these is necessary because a = temp=20 compensated thermocouple interface chip is used in the = EM2/3. =20

 The EGT bar graphs are the only thing that don't = read=20 below 1000 deg.   Temps below that are not significant = (for=20 EGT).  The bargraph can then have higher resolution over = the=20 range of interest.

Tracy

On Wed, Feb 8, 2012 at 11:27 PM, = <bktrub@aol.com> wrote:
The egt can't read anything below around 800-1000=20 accurately f if I recall correctly.  I don't = recall=20 exactly, but it's several hundred degrees, maybe as low as = 180 or so=20 when the engine is ambient- around 50 today.
Brian Trubee



-----Original=20 Message-----
From: Bill Bradburry <bbradburry@bellsouth.net>
To: = Rotary motors=20 in aircraft <flyrotary@lancaironline.net>
Sent: = Wed, Feb=20 8, 2012 8:17 pm
Subject: [FlyRotary] Re: one more = thing

Speaking of=20 EGT calibration.  If the EGT reads ambient air temps=20 accurately, does that mean that it is accurate throughout = its=20 range???  If not, how do you check the temp when it is = reading=20 15-1600 degrees??
 
Bill B=20
 
From:=20 Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] = On Behalf Of bktrub@aol.com
Sent: Wednesday, = February 08,=20 2012 9:17 PM
To:=20 Rotary motors in aircraft
Subject: [FlyRotary] = one more=20 thing
 
Also, I forgot = to=20 mention- in looking at the calibration for my EGTs I have = the same=20 settings for both- Scale factor is 1.943 and the low end = offset is=20 38. Is this the correct factory = setting?
 
Thanks,
Brian=20 = Trubee


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