We are a leading company in the watertreatment microprocessor manufacturing industry. Our products are devices specially designed for the watertreatment industry. For a cooling tower system we introduce new watertreatment controllers: CTS 8000 Visit E.W.S's products for watertreatment controllers page E.W.S. introduces the new UFS8000 ultra filtration watertreatment controllers


This is a cooling tower controller

CTS8000 a cooling tower controller


The unit type CTS8000 is universal applicable for automatic monitoring and control of cooling tower plants. There are five possible stages : "Stand by", "Service", "Flushing", "Biociddosing" and "Maintenance". This unit can monitor conductivity, temperature and several inputs e.g. water meters, level switches, alarm reset flush blocking, flush start etc.. Adaptable to user specific requirements by built-in programmable options. The programmed configuration will be stored into non volatile memory and therefore not be affected by power loss. There are two types available : CTS8000 (for passive, capacitive measurement) and CTI8000 (for inductive cell with 0-10V output)


  • 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