Hi everyone,
I connected a lamp to a regulator, which connected to my CR3000.
And I would like to measure the voltage going to the lamp with precision from the CR in a second table.
Is it possible? how to proceed?
Thank you in advance.
Regards,
Maxime.
Perhaps there are a few ways to do this.
If the regulator has sensors on it such as our CH200/PS200 then you could measure the voltage from that sensor and report it to the logger over SDI-12 or RS-232. Our regulator reports the following values.
PS200/CH200 measurements:
1 - Battery Voltage (V).
2 - Battery Current (A).
3 - Load Current (A).
4 - Charge Input Voltage (V).
5 - Charge Input Current (A).
6 - Temperature (°C).
7 - Charge state (-1 = regulator fault,
0 = no charge,
1 = current limited charging,
2 = cycle charging,
3 = float charging,
4 = battery test).
8 - Charge Source (0 = none,
1 = solar,
2 = continuous).
9 – Check Battery (0 = normal,
1 = Check Battery
- indicates battery voltage
not increasing after
significant charging).
If that capability is not there then the logger could make the measurement but you would likely need a voltage divided unless the voltage would not exceed 5VDC.
Ok, thank you for your answer.
I use an other regulator, so I have to divide the voltage by a voltage divider, but my measure will be not very precise.
Regards,
Maxime
I'm back for a answer about my problem and i would like to know your suggestion if it's possible.
I have to connect 2 lamps to a solar panel of 200 W (and my CR3000).
http://www.luxsolar.it/pdf/L864-LXS-200_en.pdf
http://www.promic.fr/pdf/liol-a-b.pdf
What do you suggest as a regulator and battery of campbell?
We use a regulator BlueSolar 21/24V-5A with a battery 12V-2Ah but we have problems with them and I would like to change.
Thank you in advance.
Regards
You would best speak to a solar power supply manufacturer as Campbell do not supply 24V solar systems normally (I assume 24V due to the voltage required of one of the lamps). All I would like to comment is that for larger systems we often use the Morningstar range as they have proven quite reliable.
Also although no current draw for those lamps is given I suspect that a 2Ah battery capacity is far too small for reliable operation and not in proportion to a 200W panel. In general a 5A charger is also not capable of efficiently dealing with the output of a 200W panel.
Generally we advise having enough battery capacity to cover the system without solar power for 1 week to 1 month or more depending on the latitude and local weather. You need to cover periods of low solar input and when the panel might be covered by snow, for instance.
To power the logger off the same system, if it is 24V, then you could, carefully, run the logger by taking power from across one of the 12V batteries (its consumption would be low enough not to matter too much in terms of unbalancing the batteries). Alternatively, you could connect one of our smaller 12V lead acid chargers and batteries, e.g. the PS100 or PS200, using the 24V batteries to feed our charger. This would then give the logger supply extra protection in the event of the 24V supply being depleted and discharged.