[time-nuts] HP 5061 oven temp Tcouple

paul swed paulswedb at gmail.com
Sat Mar 4 17:03:45 EST 2017


Ran the calculations and the offset is 3% high. The ovens running at 89
degrees C.
Regards
Paul
WB8TSL

On Sat, Mar 4, 2017 at 4:56 PM, paul swed <paulswedb at gmail.com> wrote:

> Working with Frankenstein and those C fumes are getting mighty rare.
> That said wanted to see what temp the ovens running at. As suggested here
> there is a direct reading Tcouple in the C tube.
>
> Looking at the raw wire colors from the tube best guess is a T type
> because the actual wire color is copper (-) and silver (+). Not J or K
> types. Though I have some T Tcouples and raw wire color looks very close I
> don't actually have a meter.
> For the heck of it I did connect a K Tcouple meter to it with K wire
> extensions. I know very bad and evil. Read 199 uncorrected degrees.
>
> Since the range of 200 F is a small part of the overall range perhaps the
> offset deviation is not all that large.
>
> Uncorrected readings suggest 199 F or 91 C. At least not crazy off and I
> am running the oven hotter since the tube was dead. This is a regular tube
> not a 004 that as much as I can tell really are drained dead.
> Regards
> Paul
> WB8TSL
>
>
>



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