The Eurotherm 3216 has been implemented as a Chiller controller in the USA plastic market with much success.

Below is a list of the 3216 features:
1. The model 3216 has only a 90 mm depth, which allowed chiller manufacturers to have easy installation.
2. Configure of the 3216 controlleris made easy by a text display, So the user can scroll to a parameter and just a few seconds, the text display begins scrolling in marquee fashion with a description of that parameter.
3. Ordering, maintenanceand configuration have been simplified to the use of a mere 10-digit code that completely specifies the functionality and configuration.
4. Event Messages and Custom alarm can be created and loaded into the 3216.
5. The Eurotherm 3216 can replace the external timer.A timer can be used to put the unit into standby while the system is purged. Most OEMs use an external timer today, so with the 3216, a timer is not needed
6. Digital Communication is also a needed feature when selling to Chiller OEMs, and the Eurotherm 3216 meets that need.

Plastic Chiller Overview

A chiller commonly represents a small fraction of the cost of the processing equipment, yet it provides solid protection of your investment, 24-hours-a-day, and 7-days-a-week for years and years to come.The most compelling reason for a chiller in the plastics market is the protection it provides for your valuable processing equipment—such as extrusion, injection molding equipment and other applications. To increase production is another reason to use a chiller as you maintain a constant and proper cooling temperature in the equipment. A chiller will reduce the number of rejected parts while increasing the number of parts produced per hour.

A chiller is a compressor based cooling system that is similar to an air conditioner except it cools and controls the temperature of a liquid instead of air. The other main components to a chiller are a temperature controller, a recirculation pump and a reservoir. The operation and setup are simple. Fill the reservoir with fluid to be recirculated, typically water or an ethylene glycol/water mix. Install plumbing between the chiller and the application and provide power to the chiller. The controller regulates the chiller’s functions. The chiller will provide a stable flow, temperature and pressure once it has been programmed by a user. Harmful particles are kept out of the system by an internal strainer.

There are three (3) types of chillers.

An air-cooled chiller where the chillers absorb heat from process water and can be transferred to the surrounding air. Air-cooled chillers are generally used in applications where the additional heat they discharge is not a factor. They require less maintenance than water-cooled units and eliminate the need for a cooling tower and condense water pump. They generally consume approximately 10% more power than a water-cooled unit as a wet surface transfer’s heat better than a dry surface.

Second is the portable chiller, which is a liquid cooling system on casters that can be relocated from one application to another with relative ease. It can be used to cool one or more heat generating devices.

Finally, we have water-cooled chiller, which absorb heat from process water and transfer it to a separate water source such as a cooling tower, river, pond, etc. They are generally used for large capacity applications, where the heat generated by an air-cooled chiller creates a problem. Water-cooled chillers are also considered when a cooling tower is already in place, or where the customer requires optimum efficiency of power consumption. They require condenser water treatment to eliminate mineral buildup. Mineral deposits create poor heat transfer situations, which reduce the efficiency of the unit.

Summation

The Eurotherm 3216 is being used more and more to replace several interconnected devices to chillersand consolidate functions. The level of functionality, alarmingand programmability gives the user a way to create a local custom alarm strategy that can best achieve the operating safety of the machine that will help improve qualityand minimize downtime.