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LONDEX Alarm Annunciators

The LONDEX Range of Alarm Annunciators were acquired from Panalarm by RTK Instruments Ltd in 1996 and have been extensively used in all industry types but are very common within Sub Station & Turbine applications due to its historical connection with GEC, Ruston Gas Turbines, Alstom and Cambridge Instruments.

The Londalert 32 & Londalert 4 are fully integrated 32 channel General Purpose Alarm Annunciators that are suitable for 19" or Flush Panel mounting. The display facia's offer differing ergonomic solutions but the features are largely common.

  • 1 to 32 Normally Open or Normally Closed Inputs can be connected via the internal terminal interface card accessed from the rear of the unit
  • Integral Pushbuttons & Audible.
  • Integral Common Horn & Common Alarm Relays.
  • Alarm Sequences can be set on the Centralised Logic Control board and are compliant to ISA S18.1 1979.
  • 24VDC is the standard operating voltage although 48VDC versions are available and optional integral power supplies allow direct operation from 110 / 240VAC or 110VDC as required.
As well as the products listed above RTK still supports the Cellulert and Modulert product ranges

This product is only recommended for extensions to existing plants and for spares and repair of existing installations. For new projects we would recommend later, more flexible and more cost effective products like the P725 Alarm Annunciator