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ADC 11 temperature measurement

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ADC 11 temperature measurement

Postby Vic Hall » Wed Mar 01, 2006 5:41 pm

I wish to measure 4 temperatures for an application. They are two10mm copper pipes, a sleeve in a Hot Water cylinder and the external temerature of the air.
From that I would like to activate a pump based on a differential across two of the measurements.

I would then like to replicate the above to achieve a comparison across two systems (side by side)

The ADC11/10 USB would seem to be ideal and can I use K type thermo couples to measure the temperatures. If so, how do I convert the input voltage to a temerature display on the output graph?

Anything else you would recommend?

Regards

Vic Hall
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Postby Michael » Thu Mar 02, 2006 10:08 am

Hello,

You will not be able to measure thermocouples directly with the ADC11. You will need to use a thermocouple data logger or build your own signal amplifier.

Everything else seems possible, although please provide a bit more detail of what you wish to do.

Best regards,
Michael
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ADC 11 temperature measurement

Postby Vic Hall » Thu Mar 02, 2006 3:13 pm

WHAt I wish to do is in the most cost effective way is:
Measure 4 temperatures for an solar panel application. They are two 10mm copper pipes (Flow & Return), a sleeve in a Hot Water cylinder for the tank temp and the external temerature of the air.
From that I would like to activate a pump based on a differential across two of the measurements.

I would then like to replicate the above to achieve a comparison across two systems (side by side).

The TC08 is more expensive than the ADC 11 and does not have the same number of channels.

What sensors can I use, if I can't use thermocouples?
Do you supply them or thermocouple amplifiers?

Or do you have an alternative? My knowledge of electronics is very limited so can you suggest a package.

This is for experimental usage and may be developed further later.



Regards
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Postby Michael » Fri Mar 03, 2006 10:55 am

Hello,

In order to measure thermocouples with the ADC11, you will need to build a signal amplifier for each thermocouple you wish to measure. This can be done as indicated in the attached document.

Best regards,
Michael
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