We are a leading company in the water treatment microprocessor manufacturing industry. Our products are devices specially designed for the water treatment industry.E.W.S. presents a new cooling tower water treatment controller: CTS8000Water treatment products | E.W.S | water treatment controllers - accessoires - chemical testkitsE.W.S. presents a new ultrafiltration water treatment controller: CTS8000


The CTS8000 cooling tower controller is applicable for the automatic control and monitoring of cooling tower plants. Adaptable to user specific requirements due to additonal options like conductivity control, temperature control, recorder outputs, ethernet communication , RS232 and RS485 communications and by built-in programmable options.

CTS8000 for automatic control and monitoring of cooling tower plants. With flexible programmable software for various water treatment applications.


The unit type CTS8000 is universal applicable for automatic monitoring and control of cooling tower plants. The controller, what comes in a choice of four possible different languages, has seven outputs and eight inputs. Adaptable to user specific requirements due to additonal options like up to four conductivity meters with temperature control, up to six recorder outputs, ethernet communication , RS232 and RS485 communications and by built-in programmable options. The programmed configuration will be stored into non volatile memory and therefore not be affected by power loss.


  • Choice of languages (English, French, German and Dutch).
  • Graphic TFT display (800×480, touch panel) with easy to use menu
  • Adaptable to user specific requirements by built-in programmable options.
  • Universally applicable for various sizes of installation.
  • Desalinated water production controllable by hand or level switches.
  • Control of the maintenance situation by means of a code choice possible.
  • Programming a service telephone number possible.
  • Substantial status information: actual input and output conditions, service telephone number, alarm history, software version
  • Measurements:1 conductivity meter and 1 temperature meter.
    • Optional (CTS) : 2nd, 3rd and 4th conductivity meter with temperature meter
    • Optional (CTI) : max 2x Inputs 0-10V for e.g. inductive conductivity measurement.
      This input will replace an input for conductivity measurement.
  • Conductivity range according to the instrument probe cell constants from 0,1 to 100.000 µS/cm
  • The instrument probe cell constants programmable from 0,01 to 10,00 cm-1
  • Manual or automatic temperature compensation
  • Security of program information against supply failure.
  • 7 free programmable relay outputs Available relay functions:
    • Inlet valve
    • Flush valve
    • Biocide dosing
    • Proportional dosing
    • Circulation pump
    • Alarm
    • Additional program
    • Service
    • Standby
    • Flow pulse
  • 8 free programmable inputs for potential free switches. Available input functions:
    • Watermeter inlet
    • Watermeter flush
    • High-level switch
    • Low-level switch
    • Alarm reset
    • Security switches for valves / pumpes,Level switch for dosing tank
    • Standby
    • Flush block
    • Flush start
  • Option : up to 4 conductivity meters and temperature input
  • Option : up to 6 Recorder outputs 0(4)-20mA for recording measurements or control frequency regulator.
  • Option : up to 12 Inputs 0(4)-20mA. Available measuring functions:
    • Level of the cooling water tank
    • level of dosing tank
    • conductibility measurements
    • Temperature measurements
    • Flow measurements
    • Pressure measurements
  • SD Card functions for software updates, data log and loading and saving of configuration.
  • Option : RS232 and RS485 communication for log data
  • Option : Ethernet communication for web server, e-mail function and remote control
  • Enclosure suitable for wall mounting, panel mounting and plate mounting
  • Available supply voltage (input/output) : 24V, 230V, 115/24V, 230/24V and 240/24V.
Manuals United Kingdom France Germany The Netherlands
Product briefUnited Kingdom   
Application notes United Kingdom Germany The Netherlands 
EMC problems 


Embedded software

Hex file(s) for updating the controller


Simulation software

Simulation software for Windows