X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao106.cox.net ([68.230.241.40] verified) by logan.com (CommuniGate Pro SMTP 5.2.0) with ESMTP id 2756646 for flyrotary@lancaironline.net; Mon, 25 Feb 2008 11:00:21 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.40; envelope-from=alventures@cox.net Received: from fed1rmimpo03.cox.net ([70.169.32.75]) by fed1rmmtao106.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20080225155841.NETC28556.fed1rmmtao106.cox.net@fed1rmimpo03.cox.net> for ; Mon, 25 Feb 2008 10:58:41 -0500 Received: from BigAl ([72.192.137.74]) by fed1rmimpo03.cox.net with bizsmtp id tryK1Y0031cVYgg0000000; Mon, 25 Feb 2008 10:58:19 -0500 From: "Al Gietzen" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] EM2 Warning light Date: Mon, 25 Feb 2008 08:00:25 -0800 Message-ID: <000001c877c7$890c96c0$6401a8c0@BigAl> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C87784.7AE956C0" 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 V6.00.2900.3198 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C87784.7AE956C0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable =20 Is there a test mode on the EM2 warning lamp? My alternator is only = putting out 12.6 volts and my EM2 has the voltage flashing, as it should. But my warning light doesn't light up. Shouldn't it? It hasnt lit up yet, even = with the engine not started and 0 oil pressure. =20 Bob Mears=20 Supermarine Spitfire. =20 It would seem that something is amiss with your warning light circuit. = If the Em2 reading is outside of your limit settings, and the value is flashing, the warning light should be lit. On mine the warning light = comes on each time I start my engine, as apparently something goes out of = range on startup - probably voltage and oil pressure. Test the light and the circuit. =20 I built in a test circuit with a button on the panel to test the other = LED warning lights that I have. The engine warning light is not on the = circuit as it gets tested on each startup. =20 Al =20 =20 ------=_NextPart_000_0001_01C87784.7AE956C0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

 

Is there a test mode on the EM2 warning lamp? My alternator is only putting = out 12.6 volts and my EM2 has the voltage flashing, as it should. But my = warning light doesn't light up. Shouldn't it? It hasnt lit up yet, even with the = engine not started and 0 oil pressure.

 

Bob Mears

Supermarine Spitfire.

 

It would seem that something is = amiss with your warning light circuit.  If the Em2 reading is outside of = your limit settings, and the value is flashing, the warning light should be = lit.  On mine the warning light comes on each time I start my engine, as = apparently something goes out of range on startup – probably voltage and oil pressure.  Test the light and the circuit.

 

I built in a test circuit with a = button on the panel to test the other LED warning lights that I have. The = engine warning light is not on the circuit as it gets tested on each = startup.

 

Al

 

 

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