Many functions united in a single device


The PQI-DE is a voltage and power quality measurement device, fault recorder and residual current measurement device all in one. The device combines numerous functions. It can be used as a power quality interface to fulfil network quality standards or to check the technical connection guideline. It also offers SCADA interfaces and is fitted with a fifth power input. This means the device offers everything power quality experts need.

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Instruction Manual
Installation Manual
Technical Data Sheets
Release Notes
Interface Lists
Tender Specification
WinPQ lite
Project planning data (3D models)


I-Sense: Current Feeder Measurement
Mounting Panel
Rogowski Coil
Current clamp
Divisible differential current transformer
GPS Receiver set

Records transients at up to 24 µs

Transients are increasingly a problem in electrical grids. The PQI-DA smart offers the ability to measure these transients exactly down to 24 µs, allowing precise network analysis. Analysis with our device makes the grid not only more stable but also safer.

Standards and protocols – making our products fit for the future

  • EN 50160 (2013)
  • IEC 61000-2-2
  • IEC 61000-2-12
  • IEC 61000-2-4 (Klasse 1;2;3)
  • NRS 048
  • IEEE 519
  • IEC 61000-4-30 Klasse A
  • IEC 61000-4-7
  • IEC 61000-4-15

Fulfil the measurement standards of tomorrow today

Our fix installed all-rounder offers a wide range of measurement options that represent the standards of tomorrow, today. Thus, our PQI-DE power quality device already provides frequency measurement from 2 – 20 kHz. Consider buying one of our devices as investing in the solutions of the future.

Residual current measurement RCM to 40.96 kHz over 5 current channels

Residual current measurement has a wide range of applications. On the one hand, the measurement device can be used to substitute repeat insulation tests to DIN VDE 0150-100/A1; while in connection with a switch-off device it can also provide fire and material protection. The PQI-DE is the first device in the product portfolio that can do both.

IT security from the manufacturer with ISO 27001 certification

Certified security via User Rights Management (URM) and Role Based Access (RBAC) thanks to highly encrypted data transmission.

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the PQI-DE measuring device?

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The suitable Software offers the user more reasons, to use the PQI-DE

The WinPQ system solution for all built-in A. Eberle fault recorders, power quality monitoring devices and mobile network analyzers. Monitor power quality permanently – from the high-voltage grid to the end user in a system. Intuitive operation despite the vast amount of data handled.

News from the Productgroup

PQSys – News

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