Yokogawa 253752-E1 Power Measurement Module

The Yokogawa 253752-E1 Power Measurement Module delivers high-precision power analysis and monitoring for integration with Yokogawa data acquisition systems and the PZ4000 Power Analyzer. This module captures voltage and current waveforms across DC to 2 MHz with 5 MS/s maximum sampling rate, enabling detailed analysis of fluctuating power inputs. Harmonic content extends to the 500th order, while FFT processing supports high-frequency power spectrum analysis.

Multi-channel synchronized measurement is possible when multiple units operate in master-slave configuration, maintaining synchronization to within 3 microseconds plus two sample points. Optional 4M-word internal memory accommodates extended low-frequency measurements and load transient capture.

Technical Specifications

• Measurement Bandwidth: DC to 2 MHz


• Sampling Rate: 5 MS/s maximum


• Harmonic Analysis: Up to 500th order


• FFT: High-frequency power spectrum analysis


• Input Impedance: 1 MΩ ±10%


• Input Capacitance: ~5 pF


• Internal Memory: 4M words (optional)


• Synchronization: Two PZ4000 units in master-slave configuration; up to 8 synchronized channels; maximum time difference 3 microseconds plus two sample points


• Insulation Resistance: 100 MΩ at 500 V DC (all terminals mutually)


• Withstand Voltage: 2000 V AC / 1 min (input, output, power supply, grounding); 1000 V AC / 1 min (output-1 to output-2)

Key Features

• Simultaneous multi-channel measurements across multiple module units


• External trigger function for coordinated acquisition


• Waveform display and analysis for voltage and current


• Motor evaluation capability when paired with 253771 sensor input module: torque, rotating speed, mechanical power, synchronous speed, slip, motor efficiency, total efficiency, and trend curves


• Operating Temperature: 0 to 50°C


• Operating Humidity: 50 to 90% RH (non-condensing)


• Installation Altitude: 2000 m maximum

Electrical Specifications

• Power Supply: 15–40 V DC (12–48 V operating range) or 100–240 V AC/DC, 50/60 Hz (85–264 V operating range)


• Power Consumption: 2.3 W @ 24 V DC; 2.2 W @ 110 V DC; 4.6 VA @ 100 V AC; 6.4 VA @ 200 V AC

Compatibility & Integration

• GP-IB and RS-232 Serial interfaces for PC remote control and data acquisition


• Centronics printer port for color hardcopy output


• Optional SCSI port for external measurement data storage