Walchem W900: The Next Generation of Powerful Control

Connect with the Walchem W900 Series controllers and enjoy unparalleled versatality in maintaining your water treatment options.

Now with expanded new capabilities:
  • Powerful Control
  • Flexible Programming
  • Online Access
  • Easy Setup
  • Great Value

Get more power over your water treatment processes by connecting with your Walchem representative today.

Summary of Key Benefits:

  • Large touchscreen display with icon based programming makes setup easy
  • Universal sensor input provides extraordinary flexibility; the same controller can be used with almost any type of sensor needed
  • Four I/O slots allow complete flexibility in adding additional sensors, analog inputs and analog outputs
  • Multiple language support allows simple setup
  • Eight replay control outputs allow the controller to be used in more applications
  • Economical wall-mount package for easy installation
  • On-screen and web page graphing of sensor values and control output status
  • Complete flexibility in the function of each relay:
    •   On/Off Setpoint
    •   Time Proportional Control
    •   Pulse Proportional Control (when purchased with 4-20 mA or pulse solid state opto outputs)
    •   Flow Proportional Control (when purchased with 4-20 mA or pulse solid state opto outputs)
    •   PID control (when purchased with 4-20 mA or pulse solid state opto outputs)
    •   In-Range or Out-of-Range activation
    •   Probe wash
    •   Timer-based activation
    •   Activation based upon the state of a contact closure
    •   Timed activation triggered by Water Contactor / Paddlewheel flow meter’s accumulated total flow
    •   Activate with another output
    •   Activate as a percent of another output’s on-time
    •   Alarm
    •   Spike Set Point
    •   PPM Volume
    •   Target PPM
    •   For Cooling Tower and Boiler applications:
      •   Biocide Timer
      •   Boiler blowdown on conductivity using intermittent sampling
  • Datalogging
  • Email Alarm messages, Datalog reports or System Summary reports
  • Ethernet option for remote access via the Internet, LAN or oprtional Modbus/TCP
Also Read: LPR Corrosion Sensor Input Option for the W900 Series Controllers

Download Walchem's W900 Series Controller Brochure

Talk to one of our experts today at (855) 737-4714, or fill out our online form to learn more.