Virtual meter

A virtual meter allows you to aggregate measurements from any combination of devices, apportioned meters, or other virtual meters available in Hierarchy Manager. The newly created virtual meter can be assigned to a node in Hierarchy Manager just like any other device and appears in dialogs that have a Views selection. You can even create an apportioned meter from a virtual meter.

Examples:

• Assume that there are several feeder meters connected to the main power bus and you want to calculate the total power usage. You can create a virtual meter that includes each of the feeder meters. Then you can choose one of the reports supporting virtual meters to generate a report showing the total power usage for the virtual meter.

• Assume that there is a large area monitored by a single meter (M1). Within that area is a single room that is monitored by a separate meter (M2). Tenant 1 is using the small room and Tenant 2 is using the remaining area. To calculate Tenant 2's power usage, the readings from M2 must be subtracted from the readings of M1. This can be accomplished by assigning M1 and an apportioned meter of M2 with an allocation of -100%, removing M2's readings from Tenant 2's power usage calculation.

  The alternative is to create a virtual meter. For example, create a new virtual meter Tenant_2_Net_Meter, and assign the two devices, M1 and M2 (-100%), to the virtual meter. The virtual meter is assigned to Tenant 2's node. If at some time in the future a new meter is added, you can edit the virtual meter to include the new meter.

See Creating a virtual meter for more information.