Looking to purchase an RA+

greydmv · Post by **greydmv** » Sat May 05, 2012 8:31 pm

I have a few questions prior to my purchase. I have seen some mention of ORP and Salinity probes, however I do not see them for sale on the website. Are they still available or out of stock? Any updates are appreciated.

What are the limitations with the number of expansion and relay port units you can add physically or is it limited by the amount of code you can store on the unit itself?

Thanks,
Grey

rimai · Post by **rimai** » Sat May 05, 2012 8:34 pm

ORP and Salinity have been sold as special order basis in the past.
I'll have more units next month.
You can add up to 8 relay boxes for a total of 72 ports.

greydmv · Post by **greydmv** » Sun May 06, 2012 7:14 am

This is good news. Has anyone come up with a way to monitor and alert the status of commercial power if the Reef Angel is being supplied power via a UPS?

rimai · Post by **rimai** » Sun May 06, 2012 7:37 am

I think a couple people did.
Basically what you want to do is have RA on the UPS and a standard power supply plugged on the wall.
If power failure occurs, the power supply on the wall looses power and RA is kept running and can sense the power loss of this power supply through the use of one of the ATO ports or one port in the I/O expansion module.
You can program RA to keep only vital components running to conserve energy from the UPS and also send an alert.

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