flyrotary@lancaironline.net Mailing List Archive

Doug,

To be really accurate you need to run the thermocouple leads in the same wire. (material) What Bob is talking about is that each time you put a standard steel pin connector in line it causes a minor error in the reading. If you need thermocouple wire and connectors try Omega. WWW.OMEGA.com They sell a wide variety of scientific instruments heaters, controllers and thermocouples. They even have connectors with the pins made of the same material so you can be real accurate if needed. Sorry to be long winded if you already knew about this.

Bill Jepson

In a message dated 10/24/2005 8:58:11 PM Pacific Standard Time, jmpcrftr@teleport.com writes:

>Hi Doug,
>
>I bought the P-110 EGT probes from Aircraft Spruce. These have 1/4 tab
>connectors about 1 foot from the probe. The Micro-1000 probes are
>about 1/2 the price of the P-110s. For some reason I didn't find them
>back when I ordered.
>
>I plan on using faston connectors crimped to type K thermocouple lead
>all the way from there to my EM-2 which will have crimp on pins for D
>connector. Each discontinuity will introduce some error, but it will
>be small compared to the EGT you are measuring. Any EGT probe should
>work OK. Mine are located about 1.5 inches from the exhaust port. I
>should be able to report on their survivability in another month or two.
>
>Bob W.