Schneider Electric 4000 manual What is the Circuit MONITOR?, Advanced features

Chapter 1—Introduction	63230-300-212
What is the Circuit Monitor?	April 2001
WHAT IS THE CIRCUIT MONITOR?	The circuit monitor is a multifunction, digital instrumentation, data acquisition
	and control device. It can replace a variety of meters, relays, transducers and
	other components. The circuit monitor can be located at the service entrance
	to monitor the cost and quality of power, and can be used to evaluate the
	utility service. When located at equipment mains, the circuit monitor can
	detect voltage-based disturbances that cause costly equipment downtime.
	The circuit monitor is equipped with RS-485and RS-232communications for
	integration into any power monitoring and control system. However, System
	Manager™ software (SMS) from POWERLOGIC, which is written specifically
	for power monitoring and control, best supports the circuit monitor’s
	advanced features.
	The circuit monitor is a true rms meter capable of exceptionally accurate
	measurement of highly nonlinear loads. A sophisticated sampling technique
	enables accurate, true rms measurement through the 255th harmonic. You
	can view over 50 metered values plus extensive minimum and maximum data
	from the display or remotely using software. Table 1–1summarizes the
	readings available from the circuit monitor.

Table 1–1: Summary of Circuit Monitor Instrumentation

	Real-Time Readings		Energy Readings
•	Current (per phase, N, G, 3-Phase)	•	Accumulated Energy, Real
•	Voltage (L–L, L–N, N–G, 3-Phase)	•	Accumulated Energy, Reactive
•	Real Power (per phase, 3-Phase)	•	Accumulated Energy, Apparent
•	Reactive Power (per phase, 3-Phase)	•	Bidirectional Readings
•	Apparent Power (per phase, 3-Phase)	•	Reactive Energy by Quadrant
•	Power Factor (per phase, 3-Phase)	•	Incremental Energy
•	Frequency	•	Conditional Energy
•	Temperature (internal ambient)
• THD (current and voltage)
• K-Factor (per phase)
	Demand Readings		Power Analysis Values
•	Demand Current (per phase present, 3-Phase avg.)	•	Crest Factor (per phase)
•	Demand Voltage (per phase present, 3-Phase avg.)	•	Displacement Power Factor (per phase, 3-Phase)
•	Average Power Factor (3-Phase total)	•	Fundamental Voltages (per phase)
•	Demand Real Power (per phase present, peak)	•	Fundamental Currents (per phase)
•	Demand Reactive Power (per phase present, peak)	•	Fundamental Real Power (per phase)
•	Demand Apparent Power (per phase present, peak)	•	Fundamental Reactive Power (per phase)
•	Coincident Readings	•	Harmonic Power
•	Predicted Power Demands	•	Unbalance (current and voltage)
		•	Phase Rotation
		• Harmonic Magnitudes & Angles (per phase)
		•	Sequence Components

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