RE: Using 1 wire temp sensors on copper pipes?

["Neil Ball" <neilball@xxxxxxxxxxxxxxx>]

Well in that case I would suggest some Velcro strips to strap the
Dallas
sensors to the pipes - less likely to crush the sensor but should still
give
good contact to the pipe.

Neil B.

-----Original Message-----
From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf Of
Paul Gale
Sent: 03 February 2009 12:20
To: 'ukha_d@xxxxxxx'
Subject: RE: [ukha_d] Using 1 wire temp sensors on copper pipes?

No, don't think so - do have HV Pro though that can cope with the Dallas
sensors.

Paul.



> -----Original Message-----
> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf
> Of Neil Ball
> Sent: 03 February 2009 10:43
> To: ukha_d@xxxxxxx
> Subject: RE: [ukha_d] Using 1 wire temp sensors on copper pipes?
>
> Do any of you HA systems have inputs that can measure resistance? If
so
> then
> you can buy thermistor-based clamp-on sensors from Sontay and use the
> published look-up tables to convert from resistance to degrees C. The
> sensors have an enclosure with screw terminals for the cable
> connection, 1m
> of cable terminated with a brass strip (to which the thermistor is
> bonded)
> that is clamped to the pipe with a jubilee clip. If you then put pipe
> insulation over the top of the sensor you will get reasonable
accuracy.
> These are the kind of sensors used in industrial/commercial BMS
> installations so are quite robust.
>
> Neil B.
>
> -----Original Message-----
> From: ukha_d@xxxxxxx [mailto:ukha_d@xxxxxxx] On Behalf
> Of
> Paul Gale
> Sent: 03 February 2009 09:47
> To: 'ukha_d@xxxxxxx'
> Subject: [ukha_d] Using 1 wire temp sensors on copper pipes?
>
> With the talk of temp sensors, I was wondering if anyone has used 1
> wire
> temp sensors on copper DHW pipes? I need to measure (reasonably
> accurately
> to +-1 deg or so) the temperatures of my boiler feed and return and
> other
> feed/returns on my thermal store system - mainly for tuning purposes.
>
> I was wondering if these are the right devices to use (max temp??) and
> the
> best way to bond them or temporarily fix them to the pipes? Was
> thinking
> maybe using epoxy resin such as araldite etc.
>
> Any thoughts?
>
> Paul.
>
>
>
> __________ Information from ESET NOD32 Antivirus, version of virus
> signature
> database 3820 (20090203) __________
>
> The message was checked by ESET NOD32 Antivirus.
>
> http://www.eset.com
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>
>
> __________ Information from ESET NOD32 Antivirus, version of virus
> signature database 3820 (20090203) __________
>
> The message was checked by ESET NOD32 Antivirus.
>
> http://www.eset.com
>


__________ Information from ESET NOD32 Antivirus, version of virus
signature
database 3821 (20090203) __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com


------------------------------------