RE: Cylinder temp monitoring - Idratek

[Graham Kiff <graham.kiff@xxxxxxxxxxxxx>]

I've been monitoring my thermal store for almost 2 years now, using
the Idratek QAI with thermistors and a pull-down resistors.
This is what I ordered:
http://uk.farnell.com/jsp/search/productdetail.jsp?CMP=i-ddd7-00001003&sku=1200457
http://uk.farnell.com/jsp/search/productdetail.jsp?CMP=i-ddd7-00001003&sku=1738754

And it's all been working flawlessly since I connected it up.

Cheers
Graham

-----Original Message-----
From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
alex007c@xxxxxxx
Sent: 02 February 2013 09:53
To: ukha_d@xxxxxxx
Subject: Re: [ukha_d] Cylinder temp monitoring - Idratek

Many thanks Kevin and Dave.  That's a good solution, and relatively easy to
set up.

Thanks again,

Alex

On 2 Feb 2013, at 05:52, "Dave McLaughlin"
<dave_mclaughlin@xxxxxxx> wrote:

> For example, a 100R 0.1% resistor would give you 0.4 to 2.0 volts at
> the input. Try and use 0.1% types.
>
> @Kevin, good find on eBay. I pay $147 for these types of sensor
> modules for work. Admittedly, they are programmable and Ex rated but I
> was looking for something for home use. Nice find.
>
> Dave.
>
> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf
> Of Kevin Hawkins
> Sent: 02 February 2013 07:08
> To: ukha_d@xxxxxxx
> Subject: Re: [ukha_d] Cylinder temp monitoring - Idratek
>
> You would then calculate the resistor value to give you a voltage drop
> close to the maximum the QAI-002 can measure based on the 20ma max
> current.
>
> K
>
> [Non-text portions of this message have been removed]
>
>


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