Ordering Information Disinfection Controllers WDIS400 Series WebMasterONE is the most advanced online cooling tower and boiler controller in the water treatment industry. The flexible multi-I/O platform allows you to control multiple cooling towers, boilers, closed loops, and condensate lines with just one controller. An extensive assortment of integrated communications and data handling features are included that enable water treatment professional to provide more effective water management services to their customers. VOLTAGE 1 = 120 VAC, prewired w/ USA power cord & 6” pigtails 5 = Hardwired, cable glands OUTPUT N = No data output 4 = One (1) Isolated 4-20 mA output 2 = Two (2) Isolated 4-20 mA outputs Metering Pumps The E-Class is the most innovative and comprehensive metering pump product line in the world. Over 50 years of pump experience and a commitment to superior mechanical design has led to development of many industry firsts, including 360 stroke-perminute technology, IP67 waterproof construction, and the world’s highest capacity solenoid metering pumps. SENSOR (consult factory for other sensor types & ranges) N = No sensor 1 = Free chlorine/bromine sensor with flow cell & 20 ft. cable 2 = Chlorine dioxide sensor with flow cell & 20 ft. cable 3 = Ozone sensor with flow cell & 20 ft. cable 4 = Peracetic acid sensor with flow cell & 20 ft. cable 5 = Free chlorine/bromine sensor with flow manifold & 5 ft. cable on panel 6 = Chlorine dioxide sensor with flow manifold & 5 ft. cable on panel 7 = Ozone sensor with flow manifold & 5 ft. cable on panel 8 = Peracetic acid sensor with flow manifold & 5 ft. cable on panel A = Free chlorine/bromine sensor, extended pH range with flow cell & 20 ft. cable B = Free chlorine/bromine sensor, extended pH range with flow cell & 5 ft. cable on panel WIND WebMaster® Industrial Water Controllers Walchem’s WebMaster Industrial (WIND) Controller sets a new standard for Industrial Water Treatment Controllers. WIND has a flexible multi-I/O platform, a wide range of analytical sensor measurement capabilities, and an extensive assortment of integrated communications and data handling features. AGENCY CERTIFICATIONS Safety EMC Walchem’s WebAlert is the first stand alone remote monitoring device that can web enable your installed equipment without having to replace or upgrade it. Designed to be flexible and versatile, the WDIS Series controller is the ideal solution for disinfection applications in cooling towers, food & beverage, drinking water, wastewater and swimming pools. Integrated datalogging is available to validate system performance. A USB memory stick is all that’s needed to extract data and event logs that include disinfection sensor measurements and relay status. Summary of Key Benefits Versatility for a Broad Range of Applications Choose from four standard industrial grade sensors in one controller (chlorine/bromine, chlorine dioxide, ozone, peracetic acid) or configure the controller to use a variety of other disinfection sensors. Relays can be configured for Hi Alarm, Low Alarm, Out-of-Range Alarm, In-Range Output or Probe Wash, providing unmatched flexibility. ABOUT US Walchem integrates its advanced sensing, instrumentation, fluid pumping and communications technologies to deliver reliable and innovative solutions to the global water treatment market. Our in-house engineering is driven by quality, technology and innovation. For more information on the entire Walchem product line, visit: www.walchem.com Note: For EN61000-4-6 & EN61000-4-3 the controller met performance criteria B. Economical and Simple to Use WDIS controllers are economically priced and do not require any costly reagents. The rugged NEMA 4X enclosure and panel mounted flow assembly has only two process connections for quick and easy installation. Built-in Safety Features Programmable output limit timers prevent run-away chemical addition. Digital Interlock Input may be used from a flow switch or level input to prevent chemical addition based on a stagnant sample, or control of an empty batch tank. The alarm relay notifies plant personnel of alarm conditions as soon as they occur. Simple, Integrated Data Collection Download stored data from the controller to a USB stick. Use the data to simply and easily validate system performance, document compliance and reduce liability. The data and event logs show disinfection levels, as well as accumulated chemical feed and relay activation times. *Class A equipment: Equipment suitable for use in establishments other than domestic, and those directly connected to a low voltage (100-240 VAC) power supply network which supplies buildings used for domestic purposes. The WDIS Series controller takes the guesswork out of your disinfection process. The chemical concentration is continuously monitored and controlled to the precise range required for proper system control and regulatory compliance. WebAlert® Remote Monitor USB FEATURES U = Integrated datalogging, event/reset logging, and configuration file import/export Note: Refer to the Disinfection Sensor brochure for additional sensor options. Order the WDIS controller with sensor option “N” then order the appropriate sensor separately. Walchem’s WDIS Series controller will reliably and economically control your water treatment disinfection process. The controller includes four standard sensor input options (free chlorine/bromine, chlorine dioxide, ozone, peracetic acid) or can be configured to use a variety of other types or ranges of Walchem disinfection sensors, such as hydrogen peroxide or total chlorine. Walchem, Iwaki America Inc. Five Boynton Road Hopping Brook Park Holliston, MA 01746 USA Phone: 508-429-1110 www.walchem.com

Versatile relay configuration • Control outputs can be set as high or low set points via keypad. Auxiliary outputs can be set as: • High alarm • Low alarm • In-range output • Probe wash • Out of range alarm Probe wash feature • For applications that require frequent electrode cleaning, automatic probe wash extends the time between maintenance interruptions Programmable access code • Secures set point parameters and prevents un- authorized use. Program any four digit access number or disable the code requirement. Display status at a glance • Look at any set point without interrupting control or...