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Elspec G4400 BlackBox

Elspec G4400 Power Quality BlackBox is the next generation of power quality analyzers. It stores all information all the time. The waveform of every cycle is continuously stored in on-board memory for more than a year at high accuracy, allowing no gaps in data recording. In addition, a unique time synchronization algorithm assures that data from multiple locations is synchronized and displayed on the same time scale. The result is that every anomaly can be accurately analyzed and its source can be pinpointed definitively. Since all data is stored continuously and accurately over a long period of time, the Elspec G4400 Series is much more than an analysis device, but rather a BlackBox recording all data.


  • 1+ year, every cycle on-board logging of all measurements at up to 1,024/cycle resolution
  • Thresholds are no longer needed, no events are missed
  • Patent-pending PQZIP compression technology algorithm with typical 1000:1 compress ratio prevents data gaps by real-time compression performed independent of the sampling
  • Cycle-by-cycle RMS values, frequency and harmonics trends
  • 2 parallel harmonics computations IEC 61000-4-30 & cycle-by-cycle, up to 511th harmony
  • Full scale readings lox from nominal voltages and currents at high accuracy
  • Standard compliance testing to EN 50160, IEC 61000-4-15 and others
  • Simultaneous 12 channels sampling at 250 Khz (4 micros secs)
  • Built in WEB server for remote monitoring using standard web browser
  • 2 Integral OPC servers (DA and AE) for seamless integration with SCADA systems
    2 fast Ethernet ports (100 MBit) with Power Over Ethernet (POE) device and source
  • USB and RS-485 ports
  • Up to 25 second ride through at power loss

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