Walchem W900 Series Flow Controller

Water treatment flow controller with eight relays & four input / output slots.

Walchem W900 Series Flow Controller
Walchem W900 Series Flow Controller Side

Retired products cannot be ordered

The Walchem Intuition-9 is the current replacement. Please contact an engineer for more information.

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Manufactured

By Walchem

Includes

FREE Ground Shipping
FREE Lifetime Tech Support

Product Manual Product Specs

Features

Four I/O slots
Eight relay control outputs
Eight virtual inputs and outputs
On-screen and web page graphing
Ethernet for remote access
- Internet, LAN or optional Modbus/TCP
UL, CSA, IEC & EN

The Walchem W900 Series flow controller has a large display with icon based programming, making setup easy. With multiple language support, the Walchem W900 provides simple setup no matter where you business takes you. You can use the display for on-screen and web page graphing of sensor values and control output status or access that data remotely.

The Walchem W900 Series can also email alarm messages, datalogging reports, graphs, or system summary reports. Universal sensor input provides flexibility; the same controller can be used with almost any type of sensor needed. Four input / output slots allow complete flexibility in adding sensors, analog inputs, analog outputs and LPR corrosion sensors. Eight relay control outputs, eight virtual inputs and eight virtual outputs allow the controller to be used in a wide variety of applications.

Complete flexibility in the function of each relay

On/Off setpoint
Time proportional control
Pulse proportional control (only with 4-20mA or pulse solid state opto outputs)
Flow proportional control (only with 4-20mA 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 or paddlewheel'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
Flow meter ratio
Volumetric blending
Disturbance variable control