Re: Oscar help-Jack or anyone?

I think I'm getting warm:

This adapter:

http://www.anver.com/document/vacuum%20components/vacuum%20cups/Fittings/hs6-14m-g!.htm

+ this thermocouple:

http://auberins.com/index.php?main_page=product_info&cPath=3&products_id=6

(which is the same as the one that comes "free" with the ebay PIDs)

plus this SSR

http://auberins.com/index.php?main_page=product_info&cPath=2&products_id=9

and one of the ebay PIDs



and you're done.

Now to convice Anver to sell one piece.

Between thermal conduction of copper and the tip of the probe being in
contact with the steam I think it should sense temperature changes
reasonably quickly. After all some people mount sensors on the outside of
the boiler which has to be even worse.


"Paul Monaghan" <monaghan@xxxxxxxxxxxxxxxxxx> wrote in message
news:9obts1194a4a938v9evvfpeo14nrf99hv3@xxxxxxxxxx
>
> Who knew they'd be so popular? Sounds more like the slow boat from the
> UK than a backorder, but whatever they say...
>
> I think I get the product designations now. I wonder why they
> suggested the 6mm (approx 1/4") rather than the 3 (approx 1/8"). I am
> no temperature guy, but I have been looking into this for a related
> project recently, and this chart was a real eye-opener for me:
>
> http://www.omega.com/temperature/Z/pdf/z052.pdf
>
> Note drastic change in response time from 1/8 to 1/4. And I believe
> those results reflect use in a water stream, not a calm pool so I
> imagine in a boiler the response would be a bit slower. I have been
> considering the ungrounded probes because I have read that that would
> reduce possible interference caused by motors, etc., but I frankly
> have no idea if that is really important. Too bad they don't have the
> parallel pipe thread coupling for a 1/16" probe. They do for NPT. I've
> heard people say that you can force NPT fittings into BSPP housings,
> and I suppose boiler pressure isn't so powerful that the fitting would
> have to be really cranked down, but I still don't think I could bring
> myself to do that. I would consider trying to find a 1/4male to 1/4
> female BSPP "extension" and then try it on that though, if necessary.
>
> In a thread a week or two back on "omegalok fittings" someone
> suggested using the stainless fittings with teflon ferrule so that the
> probe can be shifted up and down after installation. I thought that
> was a great idea, (I hadn't thought about the fact that a brass
> ferrule may become one with the probe after being compressed) though
> the stainless (and optional teflon ferrules) double or triple the
> cost. He suggested Swagelok fittings and provided a link, but I can't
> seem to find that post now, though I'm sure it's still around. Maybe
> Swagelok has 1/4 BSPP?
>
> I see that site you found has 3mm probes, am curious to learn any
> details.
>
> And that is just about everything I know about temperature probes...
>
> On Wed, 18 Jan 2006 15:59:18 -0500, "Jack Denver"
> <nunuvyer@xxxxxxxxxxxx> wrote:
>
>>Well it's good news and bad news. I called Omega and they suggested the
>>following combo:
>>
>>BRLK-M60-14T (on the page that you mentioned) which takes you from 1/4
>>BSPP
>>to a 6mm compression port and then
>>
>>TJI-CASS-M60U-75 which is a 6mm diameter, 75mm (3 in.) long probe with a 3
>>foot lead that would fit in that port.
>>
>>
>>
>>The bad news is that they are backordered to the end of February on the
>>adapter.
>>
>>
>>
>>A quick google got me to these folks:
>>
>>http://www.tempatron.co.uk/thermocouples.htm
>>
>>who are selling a 1/4" BSP thermocouple K type, but no further details
>>yet.
>>
>>
>>
>>
>>
>>
>>
>>
>>"Paul Monaghan" <monaghan@xxxxxxxxxxxxxxxxxx> wrote in message
>>news:aj7ts1pmkku87aqnbu52umhmdp1rr6pouc@xxxxxxxxxx
>>> Possibly. Omega carries their "Omegalok" fittings in BSPP, just not
>>> sure if one of them is small enough (don't understand thread
>>> designations)
>>>
>>> About 2/3 of the way down look for "metric omegalok." In the righthand
>>> column you'll see the BSPP fittings.
>>>
>>> http://www.omega.com/Temperature/pdf/OPN_RA_RB.pdf
>>>
>>> Please let me know if one would fit.
>>>
>>> On Wed, 18 Jan 2006 14:52:41 -0500, "Jack Denver"
>>> <nunuvyer@xxxxxxxxxxxx> wrote:
>>>
>>>>Unless someone knows of an "off the shelf"
>>>>thermocouple solution that will fit in a 1/4" BPP female port?
>>


.

Relevant Pages

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  • Re: Oscar help-Jack or anyone?
    ... UK than a backorder, but whatever they say... ... female BSPP "extension" and then try it on that though, ... In a thread a week or two back on "omegalok fittings" someone ... I see that site you found has 3mm probes, ...
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    ... Omega carries their "Omegalok" fittings in BSPP, ... Please let me know if one would fit. ...
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