meters.mdx

title	Meters, Registers & Reads
description	Work with the physical metering hierarchy beneath a connection — meters, their measurement registers, and the time-series consumption reads they record.

Meters, registers, and reads sit beneath a connection and describe how energy use is physically measured and recorded. A connection can have many meters, each meter has one or more registers (measurement channels), and each register records a stream of time-series reads.

Connection (utility meter point — NMI, MIRN)
└── Meter (physical device)
    └── Register (measurement channel)
        └── Reads (time-series consumption data)

These entities are managed in context rather than as standalone lists. Meters appear under the Meters tab of a connection, registers under the Registers tab of a meter, and reads under the Reads tab of a register (or aggregated on a connection). They are gated by the utilities permission.

Meters

A meter is the physical device installed at a connection. Open a connection and select the Meters tab to see every meter on that connection in a data grid.


Column	Description
Serial	The meter's serial number
Type	The meter type
Date Installed	When the meter was installed at the connection
Date Removed	When the meter was removed (blank if still installed)

Opening a meter shows Overview, Settings, Registers, and Reads tabs. The Overview tab summarises the meter's active status, serial number, type, description, install and removal dates, and a link back to its parent connection.

Registers

A register is a measurement channel on a meter — for example, separate channels for peak and off-peak usage, or for import and export. Open a meter and select the Registers tab to list its registers.

{/* TODO screenshot: /images/meters/registers-list.png — the Registers tab on a meter detail page showing the register data grid */}

Column	Description
Serial	The register's serial number
Intervals (seconds)	The read interval length in seconds
Accumulator Type	C (Cumulative) or Actual — how readings accumulate
Flow Direction	Injection (in), Extraction (ex), or Net (net)
Base Units	The unit of measure for the register's reads
Active	Whether the register is currently active

Opening a register shows Overview, Settings, and Reads tabs. The Overview tab surfaces the register's serial, base units, interval length, accumulator type, flow direction, active status, and a link to its parent meter.

Reads

Reads are the time-series measurements a register records — the raw consumption data that underpins validation, modelling, and brokerage. View individual reads on a register's Reads tab, or see aggregated reads with charting on a connection's Reads tab.

{/* TODO screenshot: /images/meters/reads-list.png — the Reads tab on a register detail page showing the read data grid */}

Column	Description
Date	The date of the read
Interval	The interval within the day the read covers
Value	The recorded measurement value
Actual	Whether the value is an actual reading or an estimate
Record Date	When the read was recorded

Reads are sorted by Date then Interval, most recent first.