Measuring System


Acrobat-Logo  SRcheck _data_sheet

The SRcheck is a modern, small-scale measuring system that can be placed anywhere in the grid. It reliably registers all received ripple-control signals and their voltage levels.


  • Three-phase measurement input
  • Digital filtering of ripple-control signals via micro controller
  • Processing of all established ripple-control systems and their specific pulse patterns
  • Optional Swistra-functionalities
  • Individual definition of the performance of the feedback receiver in case of power failure and its re-establishment
  • 3 freely selectable, potential-free outputs with optical display (LED)
  • Interfaces: USB, Ethernet, RS232, microSD card
  • Analogue voltage output 0-10 V (optional)
  • Under frequency detection (optional)


There are 3 potential-free, freely programmable outputs. Depending on the requirements, each received telegram pulse or the DECABIT  3 seconds signal can be confirmed. It is also possible to use the measurment input for the recognition of a power failure and to use a output contact for alarming purposes.
The output contacts are equipped with semi-conductor relays. These work free from wear and loss.
LEDs visualize the switch position of the outputs.


The SRcheck is programmed via its USB-interface. All functions can be controlled via the
programming and analyzing software SRanalyzer.

Control functions

Each received ripple-control telegram is  gauged with 5 kHz, i. e. every 0.2 ms, and recorded by the unit.

In addition to the bit-information, the respective signal voltage levels are also being recorded.
Depending on the memory capacity of the microSD-card that is being used for data
storage, all ripple-control telegrams can be stored over a period of several years.

Measurement data can be read out via the existing interfaces and analyzed with the SRanalyzer software and processed further using Excel. The RS232- and the Ethernet-interfaces are intended for remote evaluation and remote control whereas the USB-interface serves for a comfortable parameterization and on-site analysis.

Due to the program stored in the control unit, the control receiver can monitor whether the individual commands have been transmitted correctly and, in case of a missing or invalid telegram, send out an alarm or trigger an automatic  repetition of the command.


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