Rockwell Automation 1408-EMxx PowerMonitor 1000 Unit - Manual (Page 10)

10 Rockwell Automation Publication 1408-UM001D-EN-P - September 2013
Chapter 1 PowerMonitor 1000 Overview
About the PowerMonitor
1000 Unit
The power monitor is a compact, cost-effective, electric power and energy
metering device intended for use in industrial control applications, such as
destribution centers, industrial control panels, and motor control centers. It
measures voltage and current in an electrical circuit, meeting revenue accuracy
standards. It communicates power and energy parameters to applications such as
RSEnergyMetrix, RSPower, and RSPowerPlus, over Ethernet or serial networks.
The power monitor works with these software applications to address these key
customer applications.
• Load profiling – log power parameters such as real power, apparent power,
and demand, for analysis of power usage by loads over time
• Cost allocation – reporting actual energy cost by department or process to
integrate energy information into management decisions
• Billing and sub-billing – charging users of energy the actual usage cost
rather than allocating by square footage or other arbitrary methods
• Power system monitoring and control – display and control power flow
and energy utilization
PowerMonitor 1000 Unit
Features and Functions
The power monitor connects to the user’s three-phase or single-phase AC power
system directly or through instrument transformers (PTs and CTs). It converts
instantaneous voltage and current values to digital values, and uses the resulting
digital values in calculations of voltage, current, power, or energy.
The power monitor family includes five models:
• TR1 – Voltage and current transducer
• TR2 – Voltage, current, and power transducer
• EM1 – Basic real-energy monitor for sub-metering applications
• EM2 – Energy and demand monitor for main metering applications
• EM3 – Full-function power and energy monitor