Battery Electrolyte Level Probe
westbranch Solar Expert Posts: 5,183 ✭✭✭✭
Any one use something like this?
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West Chilcotin, BC, Canada
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Not yet and not quite. Waiting for a replacement JSA sensor to arrive: http://www.jsaphotonics.com/page8.html
Although it's designed to measure SG, it also has the option of a liquid level sensor.
Well now, that sounds like a dream come true, if it works and is affordable.
$50 for the sensor itself, about the same for the necessary electronics to monitor/log/display the data. Blackswan55 and myself are going to be experimenting with these to see how well they work. The initial project will just be to create an SG data logger, based on the open source Arduino module, that displays momentary SG and logs it to an SD card. From that base we can then extend the project with a networked version and one that can control relays based on the sensor readings.
Early days yet.
Latest update on mine number 1 is kinda working, I am getting a stable 0.5 v shift 1.200 > 1.270, this using the Arduino is switching a battery charger and a 100w 12v bulb on and off alternatively, It`s not pretty but it is giving stable results, No 2 sensor, I also tried to repair, no luck on that one, No 3 is on its way
Have a good one
PS, The problem we are having is the sensors do not seem to like air travel, Arriving with a "bubble" that should not be there, I have tried repairs on both I have, number 1 kinda works but does not have the resolution it should, I failed on No 2 miserable`y, The company have been very good and have sent FOC replacement offered money back and are now sending another replacement with some spare fluid, so If this one is bad I have a better chance of repairing it, I can`t fault them at all
The Sensor reads SG, temp & level, It was Stephen & my idea to use it through Arduino to control gen run, temp compensated on SG`s, and read / send an alarm on low fluid levels,,,,, to your mobile phone, if you want 8) As soon as the carriage is sorted, Not too difficult.ha ha ha
We are doing this "open source" If you would like to join in please say, If you want a list of the "bit`s" no prob, The sensor is around 75$, the Boards from 30ish$, probably no more than 150$ if you want all the toys, Ethernet, SMS , display etc, The programming is the difficult part for me,
Please bear in mind the sensor is purely that, you have to give it a 5v regulated power supply, You then "read" 3 x 0>5v outputs, It is not plug and play
My aim is to get it controlling charge "eventually" but at the mo it is a great monitoring tool,
Are you using one sensor for a bank of batteries, or per Cell ?
|| Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
|| VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A
gen: http://tinyurl.com/LMR-Lister ,
One at the moment, When I get two working I am going to have a look at it, I think you, With normal servicing will "get away" with just the one for controlling charge, two, 1 placed on your biggest and one on your smallest "mover`s" would also show when EQ was due, 1 per cell maybe a little overkill,
ps, the company did mention it as working on a 24 sensor interface, but it is going to be in the 1000`s