Overview
The Yokogawa YEW 2505 Digital AC Meter with 2514-47 input module is a precision instrument for measuring true RMS voltage, current, and power in 3-phase 4-wire circuits. It delivers ±0.25% accuracy across all measurement ranges and is suitable for electrical diagnostics, power analysis, and equipment commissioning in industrial and commercial environments.
Key Features
- 3-phase 4-wire measurement: Measures voltage per phase, current per phase, power per phase, and total power using the three-wattmeter method.
- Multiple voltage ranges: 100V, 150V, 300V, 600V selections via front-panel button.
- Multiple current ranges: 2A, 5A, 10A, 20A selections for flexible circuit testing.
- Five 7-segment LED display: Direct digital readout of selected measurement on integrated display.
- High accuracy: ±0.25% measurement accuracy across voltage, current, and power readings.
- Non-sinusoidal support: Handles distorted (non-sinusoidal) waveforms and low power factor circuits.
- Analog & digital outputs: Ten analog outputs (voltage, current, power per phase plus total power), BCD output, and remote control capability.
- Power range: Measures 200 W to 12 kW per phase; 600 W to 36 kW total power.
Technical Specifications
- Voltage Ranges: 100V, 150V, 300V, 600V
- Current Ranges: 2A, 5A, 10A, 20A
- Power Range (per phase): 200 W to 12 kW
- Power Range (total): 600 W to 36 kW
- Accuracy: ±0.25%
- Input Module Type: 2514-47 (ACV three-phase input)
- Display Type: Five 7-segment LED
- Power Supply: 115 VAC, 47–63 Hz
- Dimensions: 17.75"W × 16.5"D × 5.75"H
- Output Options: Ten analog outputs, BCD output, remote control inputs
- Waveform Support: Sinusoidal and non-sinusoidal (distorted) waveforms
Typical Applications
- Electrical system commissioning and balancing.
- Power quality analysis on 3-phase equipment.
- Motor and generator testing and characterization.
- Load profiling and energy consumption measurement.
- Troubleshooting power distribution circuits.
- Integration with data logging and analysis systems via analog outputs.
- Low power factor and harmonic-distorted waveform measurement.
Compatibility & Replacements
Compatible With
- 3-phase 4-wire AC power circuits (120/208V, 277/480V, and other standard industrial voltages).
- 3-phase 3-wire and single-phase circuits (with appropriate configuration).
- Unbalanced 3-phase 4-wire circuits.
- Analog recording instruments and data processing systems via analog output connections.
- Remote control systems via dedicated control inputs.
Replaces / Drop-In Replacement For
- Other Yokogawa 2505 meter units with compatible input modules (e.g., 2514-47 or equivalent 3-phase input versions).
- Verify compatibility with your specific circuit configuration and voltage/current requirements before ordering.
Works With
- External analog recording devices and chart recorders via ten analog output terminals.
- BCD output equipment and legacy data logging systems.
- Third-party power analysis software accepting analog or BCD input signals.
- Industrial control systems requiring real-time voltage, current, and power feedback.
