As engineering and maintenance teams seek critical information to better understand the status of their equipment, many pieces of existing infrastructure are upgraded or replaced to migrate from “crash-bang” control systems to continuous, analogue monitoring.



With an extensive installed base of their rugged, orifice plate (differential pressure) flow switches in the critical systems of crushing equipment and other heavy mining machinery, Eletta saw the need to provide customers with a simple way to move into the digital IoT age.



To do this Eletta has released three possible upgrade alternatives to the S and V Series flow switches widely found on equipment…sometimes still distinguishable by their blue housings.

  1. M3 Controller: if flow set point alarms are no longer required, upgrade to the compact M3 controller.  Compact and light lightweight, this is a blind unit which provides 4-20mA output only.
  2. D Series Controller: this upgrade alternative converts the switch to completely digital.  The D Series controller features a fully backlit display (rotatable through 360°) which offers instantaneous flowrate, a proportional bar graph and flow totaliser.  This alternative provides 2 x programmable relays alongside pulse and continuous outputs (frequency and 4-20mA).
  3. Combo Plate: if unsure which way to go, adding the Combo Plate allows keeping the mechanical dial while adding the M3 controller.  This approach maintains the mechanical switches and display while incorporating a 4-20mA flow output – combining the best of both worlds!


As with all Eletta Classic Series designs, controller changes are reverse compatible with older equipment.  Upgrades are made either directly (without having to even remove system pressure) or with the simple addition of an adapter.  None of the upgrades even require existing pipe sections or their integrated orifice plates to be removed from within the system.


During a recent repair, the maintenance staff of a NSW steel mill quickly upgraded one of their 40yr old Eletta switches with minimal downtime, supported by local inventory from Control Components.  The changeover was simply accomplished by removing 4 screws and swapping the controller, without re-calibration or fuss.


For more information on how you can make the change, give us a call or click here!