X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.2 cv=PKtNwriC c=1 sm=1 tr=0 a=TOSb+MDYDWxVjJwgg6zJ8g==:117 a=2ur7OfE09M0A:10 a=E1DUBY6-CcYA:10 a=pGLkceISAAAA:8 a=Ia-xEzejAAAA:8 a=HZJGGiqLAAAA:8 a=IOObp12nAAAA:20 a=_6GpL_ENAAAA:8 a=UJ4WM6VyZYBldjKNIesA:9 a=QEXdDO2ut3YA:10 a=iNN8EeUa0Tfgfj01YK8A:9 a=Z-k9iXHxJIyfGWp1:21 a=_W_S_7VecoQA:10 a=Urk15JJjZg1Xo0ryW_k8:22 From: "Ernest Christley echristley@att.net" Received: from sonic303-25.consmr.mail.gq1.yahoo.com ([98.137.64.206] verified) by logan.com (CommuniGate Pro SMTP 6.2.10) with ESMTP id 11998060 for flyrotary@lancaironline.net; Fri, 14 Dec 2018 11:25:55 -0500 Received-SPF: none receiver=logan.com; client-ip=98.137.64.206; envelope-from=echristley@att.net DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=att.net; s=s1024; t=1544804721; bh=qo8V5eAKQRldewRfyuplfuTAC0PDZd9LtRXYW34KwRM=; h=Date:From:To:In-Reply-To:References:Subject:From:Subject; b=yTZeX7XTHvnAoxjKMtkaHKXTur9Cu63rwbUbT5q/VErhLx+tnj0dMSPFCmAXgpR/4kgPTULLuQW+q+zKLU/1Mxa7SXGMjDGSjAu7jKzpS783FFSO+HaAu2QDyjLhHlvvcPXaIDPKwoNj4Co5//MCKXpBj6NzhrZ6RlnikDNocts= X-YMail-OSG: cckM5fgVM1nCg7nJSCCrSb.CYFZiNSEfnlZbRrLskl0lQC_rEHZASDmDrk7zxtS fmgTTUPu108_182STlBo99RZKTSXUEjZVz9ND8L59fU4sH_YgMpws7EwL6WKAT4EXsCDFeAnWogg oMkGTp1az.1UmJv7tMW7rL3R0gXDElHEBbtlv_OfWl5D0Rbkllo6lyDEvpbqWYGGvrjkDkb4pcgm p7agRVR5mg1xx1q_yGAkVtjrs5ECAatCPPLezjPGw5eBcPvlxkJx59I2pTQKEHOadZB3iGG3SDE4 eEGWxRJLezsNc1twS0VSwnvgE9AXwW26jiZGnlMK51V4kkybicRfxgdcEiWDuHqZNTedXoo46R8R AukDJPdRDv7ZSORdgnAmxnY5DLhaqsa5shMgCUsxpH6H3HuON1MRddrgrIKIqNjeMzzeGdvnCUJ7 jJEPbkRCSLrt.06_S7GPPasDvA8hfHdZ7gB0IdZv60C7G1MNInklR2bMqp9h9m1n73oQFsGovTIk GoT7wWb2k4wrGHMKIvRF29ZbkbjGzKC3K.DGHXPjf1gRbKXmO1d3D.D5sC4ZAmKjclVWFblWmfzs wttoZITFaqMyUar1qx7W6gT3NjkHzQWuq5XHkwmTG.vQ_FpEoWDnbbbKQ1Hv0FrsA5DoyEeOXjBT u9nYjwnqgikPKsa1Fazuya4WF83Oev3kIov5h_BjjN0yE2EZ3pJo.6HG2EcxE1SuCjcBqJ1OYhRU gSEIZbVSRWPbDsFUNE8_FFCxe9in1KsUXnDDhPb56SlOezPfY6azRApoiRnVDI_rozzizA5y1ULp aUlvOXeCBos7RV5AaAL1q_WAH7iFoGgjg7hhc9lIwzXXMcdi7lI99oRPQY9GJ8yk4lCsGyE3zzEM mr5hup_5rYjHusKsxAsvHHZJuzLMWJQTv.DLjDoj.DVs8yfvYACJZmP97Z4fhp5kkSfL2oc7fv5t qwoBRCPz.sQB1yJ0rRCOcoC65MuepndjvFmOPUeipf85YG53SuBxnilUCTu9yGNXIK.NGz7ADK26 VA.MmiU.UmcRV5vw_Wbh5SndActGE9ddl8IN0GT1oHK2LpQFfNvHkl4yB.GMcV72o Received: from sonic.gate.mail.ne1.yahoo.com by sonic303.consmr.mail.gq1.yahoo.com with HTTP; Fri, 14 Dec 2018 16:25:21 +0000 Date: Fri, 14 Dec 2018 16:25:16 +0000 (UTC) To: "Charlie England ceengland7@gmail.com" Message-ID: <1316679129.492525.1544804716342@mail.yahoo.com> In-Reply-To: References: Subject: Re: [FlyRotary] Re: Hey Neil, MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_492524_1149531060.1544804716339" X-Mailer: WebService/1.1.12922 YMailNorrin Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:63.0) Gecko/20100101 Firefox/63.0 Content-Length: 7037 ------=_Part_492524_1149531060.1544804716339 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Interesting.=C2=A0 Well, at this point, I guess the quickest way to find o= ut what is best is to do a resistance check on the probes I have. On Friday, December 14, 2018, 10:24:52 AM EST, Charlie England ceenglan= d7@gmail.com wrote: =20 =20 On 12/14/2018 8:57 AM, Ernest Christley echristley@att.net wrote: =20 =20 =20 On Thursday, December 13, 2018, 6:22:16 PM EST, Todd Bartrim bartrim@= gmail.com wrote: =20 https://drive.google.com/file/d/0B9-1Iqfk8J8nZGlTb09IclNyVms/view?usp= =3Dsharing=20 Todd Bartrim =20 Thank you for the write up, Todd.=C2=A0 I'm working on a Corvair engine= , and want to get away from CHT probes with spark plug rings.=C2=A0 What I'= m looking to do is have a small ring terminal clamped to the end of TC wire= and then clamp that to the side of the head with a screw into a hole tapp= ed into the head near the spark plug.=C2=A0 At that point, I'm picking up t= he temperature of the aluminum near the plug, without the probe being part = of the spark plug installation.=20 The only question I have (and why I haven't moved forward with the idea) = is, "Is it ok to ground the end of the TC wire?"=C2=A0 Your write-up seems = to suggest that it is. =20 I'm not Todd, but 'it depends'. Thermocouples are made in both grounded an= d ungrounded configurations. The configuration has to match your measuremen= t device's configuration. =20 Charlie =20 | | Virus-free. www.avast.com | =20 ------=_Part_492524_1149531060.1544804716339 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: 7bit
Interesting.  Well, at this point, I guess the quickest way to find out what is best is to do a resistance check on the probes I have.

On Friday, December 14, 2018, 10:24:52 AM EST, Charlie England ceengland7@gmail.com <flyrotary@lancaironline.net> wrote:


On 12/14/2018 8:57 AM, Ernest Christley echristley@att.net wrote:


On Thursday, December 13, 2018, 6:22:16 PM EST, Todd Bartrim bartrim@gmail.com <flyrotary@lancaironline.net> wrote:

Thank you for the write up, Todd.  I'm working on a Corvair engine, and want to get away from CHT probes with spark plug rings.  What I'm looking to do is have a small ring terminal clamped to the end of TC wire and then clamp that to the side of the head with a screw into a hole tapped into the head near the spark plug.  At that point, I'm picking up the temperature of the aluminum near the plug, without the probe being part of the spark plug installation.

The only question I have (and why I haven't moved forward with the idea) is, "Is it ok to ground the end of the TC wire?"  Your write-up seems to suggest that it is.
I'm not Todd, but 'it depends'. Thermocouples are made in both grounded and ungrounded configurations. The configuration has to match your measurement device's configuration.

Charlie

Virus-free. www.avast.com
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