The two main things to consider when choosing the number of meters required is how many circuits are required to be measured and if all the circuits are located on the same switchboard.
Each meter comes with six CTs to measure up to six circuits.
The circuits which are required to be measured to gain full functionality of the Clipsal Cortex app are:
- all grid circuits (1 for single-phase, 3 for 3-phase)
- all solar outputs (1 for each single-phase inverter, 3 for each 3-phase inverter)
- controlled load (if customer has)
- battery (if customer has)
- backup or hybrid circuit (if customer has)
Once all the above circuits are measured it should be discussed with the customer what loads they also wish to measure. We recommend measuring larger loads, with a preference for loads the customer can change the time of day they are operating so they can gain more benefit out of the solar. Some examples are: hot water, pool pumps, electric vehicle chargers and aircon.
Next, consider if all the circuits are on the same switchboard. If not, two meters may be required.
Note: It is possible to extend the CT cable up to 10 meters, without losing much accuracy, to avoid a second meter in some situations.
As a rule of thumb single phase sites with one switchboard are typically fine to install one meter, 3-phase sites or sites with multiple switchboards may require an additional meter.
After determining the number of meters, read on what are the things to do before installing the Clipsal Cortex Meter(s).
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