The CentriFeeder^™ with Integrated Control Valve or ICV, accurately measures and controls the flow of any dry, free‐flowing solid. Using a highly customizable touch screen HMI integrated with a low rpm, AC, Brushless Servo, a PID control loop is established to control the ICV feeding our patented CentriFlow^® Meter. For precise measurement and control, an Integral Linear Position Sensor is used to regulate the blade’s position to within 1 part in 1000 (based on stroke). The blade’s movement can then be monitored via the CentriView^® Electronics, or read manually via the mechanical indicator on the exterior of the valve. For delicate products, the CentriFeeder with ICV is equipped with a Virtual Flow Stop^™ function which stops flow with virtually no damage to your product. The outcome is an easily maintained, consistent flow that can, under some conditions, be controlled over a 100:1 range for both batching and ratio‐control applications.

• Accuracy: Exceptionally accurate over a large turndown range

• Adaptability: Equipped with an integrated, low rpm, AC, brushless Servo

• Precision: An Integral Linear Position Sensor regulates blade position to within 1 part in 1000 (based on stroke)

• Consistency: Control can be maintained over a 100:1 range

• Functionality: A Virtual Flow Stop^™ function stops flow with virtually no damage to your product

• Optimization: Customizable sizes, flow surfaces and flow enhancement devices allow complete system optimization

• Efficiency: Replaces problematic devices like weigh-belts with both flow measurement and flow control in a single unit

• Fast: Opens from closed start to a set point in as little as 1 second

• Flexibility: Fluctuations in elasticity, density, shape or friction do not affect accuracy

The Digital Electronics for the CentriFeeder^TM is available in a NEMA-4 Carbon Steel or a NEMA-4X 304 Stainless Steel Enclosure. Achieving a high level of functionality, the digital electronics package offers a great deal of versatility and a higher degree of connectivity to onsite PLCs and other digitally controlled devices. Just some of the many great features of our digital electronics are listed below.

• Large, convenient, color, touch screen HMI
  

• Main Screen that displays both Flow Rate and Totalization
  

• 2 Gigabyte, compact flash card that records data every second for up to 1 year
  

• HMI onscreen plotting and trending
  

• 4-20 mA Output (Flow Rate Proportional-Current Sourced-Fully Isolated)
  

• Frequency Output (Flow Rate Proportional 0-500 Htz)
  

• Remote Reset Capabilities
  

• Flow Rate or Totalization Alarm/Preset Capabilities
  

• Simple, User-friendly calibrations like Zero Adjustment, Static Calibration, Dynamic Calibration, and Field Calibrations

Calibrations can be done with the simple push of a button!

Complete customization of the electronics is available for almost any application from batching to custom mixing applications. For more information on our Digital Electronics, please click on the link below.

SINGLE UNIT

For simple and accurate measurement and control of a single product, a single CentriFeeder^™ can be equipped with a standard electronics and HMI



MULTIPLE UNITS


For accurate measurement and control of multiple products, multiple CentriFeeder^™ devices can be utilized, along with standard electronics and HMI programming working independantly of one another.



RECIPE BATCHING AND BLENDING

For the accurate implementation of a recipe of multiple products during a batching or a blending application, multiple CentriFeeder^™ devices can be linked to a centralized, master HMI that controls the flow of multiple products via the recipe entered into the Master HMI.

Air Purge System

The Air Purge System fills the back casing of the meter with instrument quality air, thereby creating positive pressure, to keep condensation, dust, and other matter form interfering with the measurement transducer.

High Temperature Option

The High Temperature Option should be used when process material exceeds 120° F. The air assists in keeping the casing internal temperature down and also utilizes a Stainless Steel Barrier with High Temperature Foam.

VibraWeigh^®

The VibraWeigh^® option keeps small particle size materials down to 10 to 50 microns from building up on the pan surface. This is important in order to keep the process product flowing through the meter and sliding on the Pan Liner. Build up that might divert or impede the flow could result in inaccurate measurement.

Explosion Proof System #1

The Explosion Proof System #1 is a pressurization or purging system that is used when the CentriFlow^® Meter and its electronics are required to be in a Class II, Division 2 area. This unit prevents the entrance of combustible dust into the CentriFlow^® Meter and its electronics, by manually removing any dust and then applying a protective gas supply to maintain a “safe” pressure of 1 inch of water. Power can then be applied to the protected equipment under conditions established by the Division Rating. This unit can be mounted nearby the CentriFlow^® Meter Electronics, tubed to the electronics enclosure and casing of meter and then referenced from either the enclosure or casing of meter.

Explosion Proof System #2

The Explosion Proof System #2 is a purging system that is used when the CentriFlow^® Meter and its electronics are required to be in a Class I, Division 2 area. The unit prevents the entrance of flammable gas or vapor to accumulate within the CentriFlow^® Meter and its electronics, by performing four air exchanges and then applying a positive pressure to maintain a “safe” pressure of 0.25 inches of water. Power can then be applied to the protected equipment under conditions established by the Division Rating. This unit can be mounted nearby the CentriFlow^® Meter Electronics, tubed to the electronics enclosure and casing of meter and then referenced from either the enclosure or casing of meter.

Engineered to Order

Eastern Instruments’ Engineering Department works in conjunction with their customers to evaluate and review existing process systems to optimize performance and efficiency utilizing the CentriFlow^® Meter.