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 Post subject: Help me buy a sensor
PostPosted: Sun May 02, 2010 3:43 pm GMT EndGMT 
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Fish Eggs
Fish Eggs

Joined: Sun Apr 25, 2010 8:02 pm GMT EthGMT
Posts: 8
I looked at the price of the remote sensor for the SunSaver MPPT model # SS-MPPT-15l. I thought the price was outrageous. About 10 years ago I bought some remote sensors and added my own wire. I used them for a DIY solar hot water install I did.

At the time, you could buy sensors from big electronic houses like Mouser, Cole-Parmer and Allied Electronics. The sensors cost around $2.00 to $3.00 each. You added your own wire then you would heat shrink the soldered connection.

Has anyone bought the MorningStar branded sensor for the SunSaver MPPT charge controller model SS-MPPT-15L? The paperwork that came with your sensor might have some specs with it. Can you share that info? Maybe the sensor itself has a model number or name stamped on it?

I can price shop the big electronic supply houses once I know what we need and post the info here for everyone. I don't know squat about solar PVs, but I work in the electronics field and can find my way around discrete componets.

If you are in the mood....

Mouser:

http://www.mouser.com/

Allied Electronics:

http://www.alliedelec.com/

Cole-Parmer:

http://www.coleparmer.com/


Thanks everyone.

jack in Portland Oregon


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 Post subject: Re: Help me buy a sensor
PostPosted: Sun Apr 24, 2011 7:29 pm GMT EthGMT 
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Fish Eggs
Fish Eggs

Joined: Sun Apr 24, 2011 7:19 pm GMT EthGMT
Posts: 4
You can make one from a 10K NTC thermistor that can be scavenged from any thing from a thermal electric water cooler to hot tub temp sensor, they are in nearly any thing that measures temperature.

The 10K NTC is a rather prolific type of thermistor, it will read 10,ooo ohms at 21C within 5%, and the resistance will drop as it warms, they can be purchased very cheaply from any electronic component shop. You will have to make the part that attach├ęs to the battery but this is very simple to do!


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 Post subject: Re: Help me buy a sensor
PostPosted: Thu Sep 01, 2011 5:51 pm GMT EstGMT 
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Fish Eggs
Fish Eggs

Joined: Thu Sep 01, 2011 4:18 pm GMT EstGMT
Posts: 5
Not 100% sure on these but I have hard good things about all of these manufacturers. Still a newbie to this but I have heard the most things about Allied Electronics sensor. From what I understand it does very well. But you can always jurryrig something from a hot-tub as well like the above poster said.
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San Jose electrician


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