Yokogawa CW240-D/DA Clamp-on Power Meter
Yokogawa CW240-D/DA is a portable clamp-on power meter with simultaneous 4-load measurement, analog I/O functionality, harmonics to 50th order, waveform analysis, and 512 MB expandable memory.
Product details
| Model | CW240-D/DA |
| Manufacturer | Yokogawa |
| Category | Electrical Safety & Testers |
| Availability | Made to order |
Description
Overview
The Yokogawa CW240-D/DA is a portable clamp-on power meter designed for comprehensive electrical power measurement and analysis. With simultaneous multi-system measurement capability, analog input/output functionality, and UL/CSA standard power cord, it supports four single-phase two-wire systems, two single-phase three-wire systems, and SCOTT connections. The meter provides instantaneous power data, energy consumption tracking, demand analysis, harmonics measurement, waveform analysis, and voltage fluctuation detection with connection verification features.
Key Features
- Portable clamp-on design for non-invasive measurement
- Analog input/output functionality
- UL/CSA standard power cord
- Easy-to-read LCD screen display
- Simultaneous measurement of up to 4 loads
- Connection checking function to prevent wiring errors
- Current measurement: 200 mA to 3000 A
- Voltage measurement: Up to 1000 V
- Harmonics measurement from 1st to 50th order
- Waveform measurement and graphical display
- Built-in 1 MB internal memory, expandable to 512 MB with external memory cards
- Multi-lingual support and zoom function
- Backup power supply attachments available
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 Quantity & Demand
- Active power quantity (consumption, regeneration)
- Reactive power quantity (leading/lagging)
- Maximum power demand tracking and analysis
Harmonics & Voltage Fluctuation
- 1st to 50th order harmonics with THD-F and THD-R analysis
- Voltage dip, swell, and instantaneous power failure detection
- Up to 100 fluctuation events can be saved
Operational Features
- Writing check function to verify correct wiring before measurement
- Setting check function to prevent data acquisition errors
- Vector diagram display for troubleshooting and error detection
- CSV format data export via external memory cards
Applications
- Energy efficiency audits and facility power management
- Equipment condition assessment and lifecycle planning
- Power factor correction and optimization
- Transformer and motor load analysis
- Harmonic distortion monitoring and mitigation
- Preventative maintenance planning
Specifications
| Current Range | 200 mA to 3000 A |
| Voltage Range | Up to 1000 V |
| Supported Systems | Single-phase 2-wire, single-phase 3-wire, three-phase, SCOTT connections |
| Simultaneous Measurements | Up to 4 loads |
| Harmonics Analysis | 1st to 50th order |
| Data Collection Intervals | 0.1-60 seconds, 1-60 minutes |
| Memory | 1 MB internal, expandable to 512 MB |
| Display | LCD screen |
| Data Format | CSV |
| Special Features | Analog I/O, wiring check function, multi-lingual support, UL/CSA power cord |
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Yokogawa CW240-D/DA Clamp-on Power Meter