Victron Energy Meter ET112 - 1 phase - max 100A
Please allow 3 business days before dispatch
1. Introduction and usage
This document is the manual for the single phase max 100 A Energy Meter.
The Energy Meter can be used for four things:
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Grid meter, and used as control input for an ESS System (1).
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Measure the output of a PV Inverter
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Measure the output of a AC Genset
The meter is connected to the Color Control GX. There are two options in its wiring:
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Direct connection, either using the RS485 to USB interface with 1.8m cable length, or the 5.0m cable.
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Wireless connection via Zigbee
Victron part number REL300100000 is the ET112-DIN.AV01.X.S1.X from Carlo Gavazzi. And that is the model we keep in stock.
Other ET112 models from Carlo Gavazzi can also be used, as the communication is the same.
Grid Meter - Wiring when used as a grid meter. PV Inverter - Wiring when used to measure PV inverter or AC Genset.
This configuration option of either Grid Meter, or PV Inverter is set in the GX device. That selection will effect how the system should be wired, and how the information received from the meter is displayed on the screen.
Example Diagram
In this example configuration, a single ET112 is configured as a Grid Meter and will measure the grid import/export of an ESS system with a AC PV inverter. While the exact production of the AC PV inverter will not be seen, this is still a useful configuration as it allows the AC PV production to first flow to the non-essential loads on that same circuit.
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A surplus will be used to charge the batteries (seen as export and tried to reduce to grid set point eg 0).
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A deficiency will trigger a discharge of the batteries (seen as import, and tried to reduce to grid set point).
This can be useful if the Victron ESS system is installed as a retrofit to an existing AC Solar inverter installation with some larger loads that aren't wired through the Multiplus.
If you wanted to see PV production separately you could use the “single phase dual function mode” of the ET340.
Wired connection to CCGX
Connect the Energy Meter to the CCGX using the USB to RS485 cable. The RS485 to USB interface cable between the CCGX and the Energy Meter can be extended up to 100 meters; make sure that the extensions of the Data+ (orange) and Data- (yellow) wires form a twisted pair.
RS485 Converter | Energy meter |
---|---|
Yellow (Data-) | Terminal 5 |
Orange (Data+) | Terminal 4 |
Black (GND) | Terminal 6 |
The red, green and brown wire coming out of the USB to RS485 cable are not used. Note: You can wire on a RJ45 plug which can plug into the front of either RJ45 socket of the Energy meter, it has the same pin out.
(REL300100000)
SKU | VIC-REL300100000 |
Barcode # | 8719076039686 |
MPN # | REL300100000 |
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Energy Storage
As more solar and wind power comes on line, it becomes increasingly difficult and expensive, to ensure stability of the grid. Intermediate energy storage is therefore rapidly becoming an essential tool to keep power fluctuations on the grid within manageable limits. Moreover, as feed-in tariffs are decreasing, the business case for a home energy storage system that increases self-consumption becomes more solid every day. Intermediate energy storage increases self-consumption of harvested solar and/or wind power. The natural next step is 100% self-consumption and independence from the grid.
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