WebMasterONE® Series Controllers





WebMasterONE is the most powerful family of online process controllers in the water treatment industry.  WebMasterONE couples a powerful multi-I/O platform with Walchem's analytical sensors and extensive communications technologies. The result is the ability to remotely monitor and control your process from any computer, anywhere in the world, with just a standard web browser.

Simple, intuitive programming makes it easy to configure your WebMasterONE to control multiple cooling towers, boilers, closed loops, or virtually any water treatment process.

  • Wide range of direct sensor measurements:
    • Conductivity
    • pH/ORP
    • Free Chlorine/Bromine
    • Electrodeless Conductivity
    • Chlorine Dioxide

  • All standard water treatment control methods are included in every WebMasterONE:
    • On/Off and Time Proportional Control
    • Inhibitor feed
    • Intermittent boiler sampling with flashing detection
    • Biocide timers
    • ORP spike feed of chlorine
    • Volume based cycles control
    • And more....

  • 8 analog inputs

  • 12 digital inputs

  • Instant alarm notification via email or text message

  • System status reports and datalog files can be sent automatically

  • Available with Modbus TCP/IP protocol
Featuring the VTouch® Remote Account Manager
  • Managed water treatment services
  • Fully synchronized with Walchem's web based controllers, making set-up and configuration simple and fast.
  • No more tracking cellular data or dial-up ISP plans
  • Quick, centralized 24/7 awareness of account status

VTouch Demo Login
username: vtouchdemo@walchem.com
password: vtouch
WebMaster Demo
username: webmaster
password: 2001
ShoulderTap your WebMaster
Quick Start Guide
WebMasterONE Manual
VTouch Manual
Modbus TCP/IP Manual (v17)
This document requires Microsoft Word Cooling Tower A & E Specification
This document requires Microsoft Word Boiler A & E Specification
Tech Support


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