Water softener/filter controllers designed for the monitoring and control of simplex and duplex water softener installations

ES2050/2051 filter/softener controller


The ES2050(wall mounted) and ES2051(panel mounted) water softener/filter controllers are designed for the monitoring and control of simplex(single exchange column) and duplex(twin exchange columns) water softener installations. Whilst a simplex installation can not provide softened water to service when the exchange column is in regeneration, a duplex installation is capable of providing treated water from one column whilst the other is being regenerated. Duplex plants can be operated either in duty/standby mode(one unit in service, the other either in regeneration or waiting to be called into service), or in parallel mode(both units in service except when one is regenerating). The regeneration of an exchange column is effected either by one central control valve or by means of a pilot system controlling individual valves. Five volt free relay contacts are available for control of valves, pumps, lamps, etc. or can be used for remote monitoring.


  • User operated programming using double row of illuminated LCD display.
  • Display text in English, French, German, Italian, Spanish or Dutch.
  • Simple control utilizing easy to follow symbols.
  • Adaption to user specific requirements by means of options programmable on site.
  • Simple operation by means of a few clear operating symbols.
  • Can be used for various sizes of plant.
  • Capacity values programmable from 1 to 65535 m3
  • Regeneration/rinsing activation by time interval, flow, external switching, real time clock or manual control.
  • Time delayed regeneration/rinsing.
  • Control of quantity dependent flushing.
  • Extensive status report facility using information button. Flush control, regeneration/rinsing time, extra program, filter capacity, total quantity of treated water, current input and outputs status, software version, start time interval, time delayed regeneration/rinsing, service telephone number, input and output programming.
  • Large green LED-display showing remaining capacity or remaining interval time until next regeneration/rinse
  • Input of service telephone number
  • 4 inputs: water meter, regeneration/rinsing agent monitoring, regeneration/rinsing stop or level switch for storage tank, regeneration/rinsing start
  • 6 powered relay outputs: 2 control valves, 2 home switches and 2 service valves
  • 5 relay outputs (dry contact): extra program, regeneration/rinsing procedure, take-off impulse, signalling and flushing
  • Secure from power failure as all data is stored long-term without battery
  • Efficient micro controller with watchdog, illegal operation code and cycle monitoring
  • Safeguarded from EMC by galvanic separation between microcontroller and in- and output circuits and also by additional interference suppression filter
  • Available for wall-mounting(ES2050) and panel mounting(ES2051)
  • Available (input /output) : 24/24VAC, 115/115VAC, 230/230VAC, 115/24VAC, 230/24VAC, 240/24VAC
Manuals United Kingdom France Germany The Netherlands Italy Spain Poland Czech Republic
Product briefUnited Kingdom      
Application notesUnited KingdomGermanyThe Netherlands 
Update with SD Card   
Exchanging EPROM 
Connecting Fleck valve 
Connecting Autotrol Magnum 
 United KingdomGermanyThe Netherlands 
Connecting standard Siata valves 
Connecting Siata stager 
Connecting Gawa valve 
EMC problems 


Embedded software

Hex file(s) for updating the controller



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