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RE: Measuring CH water temperature?



Piers,

You *REALLY* don't need the heatsink paste between the two surfaces ...
heatsink paste is supposed to fill in minute imperfections between two
very-close-to-perfectly-smooth surfaces such as the top of a CPU and the
base of a heatsink, whacking it between a DS18S20 and a copper pipe is
likely to be at best just a source of gloopy mess and at worst could
actually act as a *BARRIER* to the DS18S20 gatting a decent temperature
reading...

Phil

-----Original Message-----
From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
Piers Kittel
Sent: 16 May 2008 17:19
To: ukha_d@xxxxxxx
Subject: Re: [ukha_d] Measuring CH water temperature?

Phil, Jim, Neil, Nigel and Ake,

On 15 May 2008, at 19:11, Phil Harris wrote:

> I used to use a jubilee clip and a bit of foam pipe lagging to hold
> DS18S20's to the flow and return pipes to the heating coil of the
> cylinder
> in my old house - worked fine.
>
> Phil

Yeah - I've been thinking about it a lot today and have decided I'm
just being overkill and a DS18S20 sensor with heatsink paste between
the sensor and the pipe, all jubilee clipped to the pipes and some
sort of silicon sealant like cover would be more than sufficient for
my needs.  The sensor is rated up to 125 deg C anyway, which is way
more than the 90 deg C maximum my boiler can output.

Thanks to everyone for all your help - was a lot of use in calming
down my thoughts! :)

Regards - Piers

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