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DAK 260™

Digital Start-up Channel

Neutron flux monitoring during reactor start-up.

Tag Features

  • Modular design, highly customizable
  • For proportional and fission counters or γ-compensated ionization chambers
  • Provides the count rate, calibrated n-flux (nv) or reactor power (%FP, W, ...)
  • Calculation of flux change rate (reciprocal of the reactor period)
  • Signal filtering with adaptive filter parameters
  • Generation of analog output signals with lin. or log. scaling (optional: linear multi-range signal incl. range indication)
  • Generation of binary alarm, trip and status indication signals
  • Remote activation of integrated test signal generators
  • Secured serial interface
  • Qualified for Category A functions (Class 1 systems) acc. IEC 61226


The DAK 260 digital start-up channel forms part of the proTK™ product line.

It is used for monitoring the neutron flux during reactor start-up in the source range with a pulse-type detector or in the intermediate and power range with a gamma-compensated neutron ionization chamber (CIC). With a gamma radiation detector, it can also be used in safety critical radiation or process monitoring applications.

Hardware and Software of the DAK 260 channel is designed and qualified for use at the level of the reactor protection system.

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