Yokogawa CW240 Clamp-on Power Meter

Overview

The Yokogawa CW240 is a comprehensive clamp-on power meter designed for energy efficiency analysis, equipment lifecycle assessment, and power quality measurement. It enables non-invasive measurement of voltage, current, and power across multiple phases and systems simultaneously, providing detailed data collection capabilities for facility-wide power management and troubleshooting of electrical systems and equipment.

Key Features

• Clamp-on measurement for non-invasive testing
• 3-wattmeter display for instantaneous value measurement
• Simultaneous measurement of up to 4 single-phase or 2 three-phase systems
• Harmonics measurement from 1st to 50th order with THD-F and THD-R analysis
• Power quality measurement including active, regenerative, and reactive power
• Demand management with user-configurable time intervals (1 second to 60 minutes)
• Voltage fluctuation detection (dip, swell, instantaneous power failure)
• Waveform measurement and display in graphs
• Built-in 1 MB internal memory, expandable to 512 MB with external memory cards
• Data collection intervals from 60 times per second to hourly
• Multi-lingual support and zoom function

Measurement Capabilities

Instantaneous Values

• Voltage, current, and electric power (active, reactive, apparent)
• Power factor and phase angle for each phase
• Average, minimum, and maximum values

Power Quality & Harmonics

• Active, regenerative, and reactive power measurement
• Harmonic analysis to 50th order with list, bar graph, and vector displays
• Total Harmonic Distortion (THD-F and THD-R) calculation

Applications

• Energy efficiency audits and cost reduction analysis
• Equipment maintenance planning and lifecycle assessment
• Power factor optimization and compliance monitoring
• Motor load analysis and efficiency verification
• Transformer and equipment condition monitoring
• Facility-wide power consumption tracking