Walchem W600 Series

The W600 series provides reliable, flexible and powerful control for your water treatment program.

Features & 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
• Combination Sensor Input and Analog Input board that add even more flexibility
• Lead/Lag control of up to 6 relays
• Optional dual analog (4-20 mA) input for Fluorometers or nearly any other process value
• Multiple language support allows simple setup no matter where your business takes you
• Six control outputs allow the controller to be used in more applications
• Economical wall-mount package for easy installation
• On-screen graphing of sensor values and control output status
• Two Virtual Inputs that are calculated from two real inputs (cycles of concentration, % rejection, etc.)
• The W600 with amperometric chlorine sensors can be used for reporting chlorine residual measurements in accordance with EPA Method 334.0
• Complete flexibility in the function of each relay:
  • On/Off Setpoint
  • Time Proportional Control
  • Proportional Control (when purchased with 4-20 mA or pulse solid-state opto relays)
  • PID Control (when purchased with 4-20 mA or pulse solid-state opto relays)
  • 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
  • For Cooling Tower and Boiler applications:
• Biocide Timer
• Boiler blowdown on conductivity using intermittent sampling
• Datalogging
• Emailing Alarm messages, Datalog, Graph, or System Summary Reports
• Ethernet option for remote access via the Internet, LAN or Modbus/TCP and BACnet