Hello!
I am looking to install a new grid-tied ESS with Multiplus 2, but there's not enough room near the distribution board to install the unit and batteries, so I would like to install them in another room in a AC parallel setup. However, that requires a current sensor on grid input.
Is there a way to use a wireless sensor for that? The two options I am aware of are current transformer and ET112, both of which require running a cable to the Multiplus 2?
Thanks
You can us DTK wireless RS485 net work devices to connect the ET112, as i use these all the time on projects.
Regards
Rob D
NZ
Hi Rob could you please advise the exact models you are using and a ruff diagram of the connection setup for the TX and RX units, I am looking for a way to extend the victron AC sensor unit back to the AUX1 on the multiplus and its a long distance of a round 300 mtrs to the grid tie inverters, cabling is not a option due to possible EMP issues over that length, plus I have 3 units I need to connect - (Cabling works (ie twisted pair) but it cant be left installed as potential damage is two great)
answered by Rob
DTK Electronics DRF2658C USB
DRF2658C RS485 connect to smart meter in meter box.
Wiring is very simple when you see the units
The USB unit into the raspi GX etc is plug and play.
The RS485 units is 5-24v PSU required and A,B connections for comms.
Regards
Rob D
NZ
