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In electrical engineering, characteristics like current or voltage can be measured by an ammeter, a voltmeter, a multimeter, etc. The ammeter is used in series with the load, so the same current flows through the load and the ammeter.
A typical residential water meter A typical residential digital electric submeter Before submetering, many landlords either included the utility cost in the bulk price of the rent or lease , or divided the utility usage among the tenants in some way such as equally, by square footage via allocation methods often called RUBS (Ratio Utility ...
Schematic representation of measurement categories. Measurement category is a method of classification by the International Electrotechnical Commission (IEC) [1] of live electric circuits used in measurement and testing of installations and equipment, usually in the relation within a building (residential or industrial).
High-precision laboratory measurements of electrical quantities are used in experiments to determine fundamental physical properties such as the charge of the electron or the speed of light, and in the definition of the units for electrical measurements, with precision in some cases on the order of a few parts per million. Less precise ...
Name Purpose Ammeter (Ampermeter) : Measures current Capacitance meter: Measures the capacitance component Current clamp: Measures current without physical connection
Optical port on a digital kilowatt-hour meter Optical port on a heat meter Optical port on a smart kilowatt-hour meter. IEC 62056 is a set of standards for electricity metering data exchange by International Electrotechnical Commission.
With touch-based AMR, a meter reader carries a handheld computer or data collection device with a wand or probe. The device automatically collects the readings from a meter by touching or placing the read probe in close proximity to a reading coil enclosed in the touchpad.
It aims to allow application software to exchange information about an electrical network. [1] It has been officially adopted by the International Electrotechnical Commission (IEC). The CIM is currently maintained as a UML model. [2] It defines a common vocabulary and basic ontology. CIM models the network itself using the 'wires model'.