Victron Energy Meters – Venus OS Compatible

Venus OS supports multiple energy meters for monitoring PV inverters, AC generators, and grid connections in ESS (Energy Storage System) installations. These meters integrate with a GX device for real-time data display and system control.

Energy Meter Applications:

• Measure the output of a PV inverter.
• Monitor an AC generator (Genset).
• Function as a grid meter in an ESS installation.
• Measure AC loads within an energy system.

Compatible Energy Meters:

Victron supports both Victron-stocked and third-party meters such as Carlo Gavazzi and ABB. The meters connect to GX devices via VE.Can, Ethernet, or RS485.

Connection Options:

• VE.Can (Recommended): Direct connection between the VM-3P75CT and a GX device, independent of a network.
• Ethernet: Used by the VM-3P75CT and EM24 Ethernet meters. This is beneficial if an existing network is available but depends on network stability.
• RS485: Requires a wired RS485-to-USB interface or a Zigbee wireless connection to the GX device.

Choosing the Right Energy Meter:

1. Select the Number of Phases:

• Single-phase connection: Use an ET112 or a three-phase meter in single-phase mode.
• Three-phase connection: Use a three-phase meter such as the VM-3P75CT or ET340.
• PV Inverter measurement: Use a three-phase meter for a three-phase inverter or multiple single-phase meters.

2. Consider the Maximum Current Per Phase:

• If current exceeds the meter rating, use an Energy Meter with current transformers.
• Most PV inverters provide direct readout through Victron and do not require an additional energy meter.

3. Select the Connection Type:

• VE.Can: The easiest option, providing a direct connection between the VM-3P75CT and GX device.
• Ethernet: Suitable for networked installations but requires a stable network.
• RS485: Used for most other energy meters via USB or Zigbee.

Energy Registration Methods:

• Vector Registration: Used by the EM24, EM5XX, and ABB meters (preferred in Germany, Austria, and most countries).
• Arithmetic Registration: Used by all other meters.
• VM-3P75CT: Offers configurable options for vector, arithmetic, or absolute registration.

Recommended Energy Meters:

You can download the datasheet for Victron Energy Meters here.

For technical support or additional information, reach out to us at hello@offgridrenewables.co.uk.