FilterLink^® 4000 Series

The challenge was to create a microprocessor based filter backwash controller that is exceptionally versatile, reliable, and has all the features desired by the industry - and keep it simple. Introducing the FilterLink^® 4000 series...

Versatile, Reliable, Leading Edge, Operator Friendly, Part of the Whole, Remote Monitoring and Operation, Models and Features

Versatile
FilterLink is designed for use with solenoid, motorized and stager valve systems. Multiple filters can be accommodated without additional devices (stager system). Pick your method - FilterLink can initiate backwashes based on pressure differential, gallons filtered since last backwashed, and time since last backwash. If the first backwash is not successful at meeting the pressure goal, FilterLink utilizes its repeat-wash function to perform additional backwashes as needed.

Operators may specify what weekdays and times are acceptable to backwash. FilterLink can backwash at these times only if it is necessary - keeping your filter running at optimal performance, reducing filtration downtime and saving water.

Reliable
In the event of a power loss, all settings are kept in nonvolatile memory - no battery to replace. When power is restored, FilterLink checks to see that filter operation is normal or a system shutdown is initiated. To prevent water loss or mechanical breakdown of equipment, the wastewater line as well as the position of the valves is constantly checked. An LED indicator light provides distinct notice when the flow and pressure values as well as valves are abnormal. Alarm and backwash failure flags are factory preset and operator adjustable.

Leading Edge
The latest technologies were used to design the single circuit board for the electronic components and the microprocessor. No knobs or mechanical timers; all values are entered through a simple keypad and displayed on a backlit Liquid Crystal Display (LCD).

Continuously monitoring itself, FilterLink performs self tests and diagnostics to ensure trouble free operation. A non-corrosive enclosure with external and plastic connections allows the unit to withstand adverse equipment room environments.

Operator Friendly
A decision based menu structure guides the operator through setup procedures that tailor the unit to their filter system. Once the setup is complete, FilterLink works around the clock to ensure that backwashing is performed when needed. The display shows the current influent, effluent and differential pressure, in addition to the gallons filtered since last backwash and the flow rate. The operation that the controller is currently performing is also displayed ... in plain English.

In addition to the indicator that notifies operators of an alarm condition, separate lights indicate the on/off status of heaters, chemical treatment system and circulation pumps. FilterLink keeps the operator informed.

Part of the Whole
The equipment in a pool mechanical room is designed to do one thing - deliver clear, filtered water that is sanitized for the enjoyment of swimmers and bathers. Backwashing the filter is an integral part of this process and there are important steps involved. Prior to backwashing, the heater should be allowed to cool down to prevent overheating / breakdown and the chemical treatment system should be disabled to prevent chemical discharge into the wastewater. During backwash, the position of valves must be checked at each stage to prevent backpressure or improper water discharge.

FilterLink works in harmony with other equipment, turning off and on the circulation pumps, heaters and chemical treatment equipment when appropriate - taking charge of the steps necessary for an appropriate filter backwash.

Remote Monitoring and Operation
Since FilterLink is microprocessor based it can be linked to a computer - down the hall or on another continent. SiteLink™ is a PC based program designed specifically for remote communication with Link Automation equipment. Everything that can be done from the faceplate - and more -  can be done from your office or home.

Direct access to the FilterLink 4300 over a phone line or RS-232 connection will give the operator up-to-the-second information.  The operation values, alarm settings and backwash history is just a phone call away. SiteLink allows the operator to scroll through FilterLink's menu structure and alter settings just as is done in the equipment room. The entire set of operating parameters can be transferred to the PC for review, alteration and storage - then sent back to the FilterLink 4300.

Models and Features

FilterLink^Ò 4300, 4301, 4302