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Navitron Renewable Energy and Sustainability Forum > SOLAR THERMAL > Solar (and other) Data Logs > Current Transducer: either on/off or 0-5V for 3kW load
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Author Topic: Current Transducer: either on/off or 0-5V for 3kW load  (Read 1361 times)
hiccup
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« on: October 12, 2008, 07:21:00 PM »
Hi folks

I'm setting up the data logging/control of my existing heating and one of the things I want to do is detect when the immersio heater in the thermal store is actually heating vs when it is powered.

So I've Googled around and found various current sensors and transducers staring around £45 quid  but I wondered if anyone had any recomendations?

Many Thanks

Hic!
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16 x Sanyo HIT250E01 into SB4000TL inverter, 2 x 20 x 58mm Navi Tubes on 22deg roof facing SSE, Gledhill Torrent RE Solar 277litre Store, TDC4 Ether Controller, Xpelair Xcell400BP HRV, Stovax Riva 66 Wood Burner
Alan
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« Reply #1 on: October 12, 2008, 10:16:38 PM »
Hello Mr Hic

Try Radio Spares part 399-7339 at £0.49

produces 1.0volt output for each amp of current in a single turn.

regards

Alan
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hiccup
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« Reply #2 on: October 13, 2008, 12:30:58 PM »
Hi Alan

Thanks for that, just what I need. I can grow my own circuit around that tho do what I need.

Kind regards

Hic!
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16 x Sanyo HIT250E01 into SB4000TL inverter, 2 x 20 x 58mm Navi Tubes on 22deg roof facing SSE, Gledhill Torrent RE Solar 277litre Store, TDC4 Ether Controller, Xpelair Xcell400BP HRV, Stovax Riva 66 Wood Burner
hiccup
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« Reply #3 on: October 13, 2008, 02:45:34 PM »
Ah - minor problem - unlikely to work at 50Hz


I'll keep looking

 bike

Hic!
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16 x Sanyo HIT250E01 into SB4000TL inverter, 2 x 20 x 58mm Navi Tubes on 22deg roof facing SSE, Gledhill Torrent RE Solar 277litre Store, TDC4 Ether Controller, Xpelair Xcell400BP HRV, Stovax Riva 66 Wood Burner
hiccup
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« Reply #4 on: October 13, 2008, 02:51:52 PM »
OK, I found something similar that is specified down to 50Hz.

Hic!
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16 x Sanyo HIT250E01 into SB4000TL inverter, 2 x 20 x 58mm Navi Tubes on 22deg roof facing SSE, Gledhill Torrent RE Solar 277litre Store, TDC4 Ether Controller, Xpelair Xcell400BP HRV, Stovax Riva 66 Wood Burner
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