SOLIDS FLOW MEASUREMENT

Gravimetric solids flow measurement offers greater control and long term accuracy than alternatives such as volumetric scales and feeders, but not all gravimetric flow meters achieve the same level of accuracy and control. While both weigh belts and loss-in-weight feeders are gravimetric devices, they too are prone to error with even slight variations in particle size and density. The key to achieving the best results with a gravimetric solids measurement device is the proper presentation of material to the measurement surface in a way that maximizes measurement surface contact (for higher accuracy) and keeps the measurement surface filled (as a method of self-cleaning). Utilizing the patented CentriFlow Technology Eastern Instruments' solids flow measurement product line offers accurate, cost-effective and simple solutions to your process measurement needs.

CENTRIFLOW METER

The CentriFlow^® Solid-Particle Mass Flow Meter measures bulk solid materials continuously in a process. With an accuracy of 0.25% full scale and repeatability of 0.1%, it handles bulk densities from 1lb/ft3 to 100 lb/ft3 and flow rates of 0.35 ft3/min to 60 ft3/min. The CentriFlow^® Meter can be used for mixing, blending, or ratio control applications in the petrochemical, agricultural, aggregate, food, and pharmaceutical industries. The CentriFlow^® Meter is unique and positioned to replace weigh belts, impact meters, loss-in-weight meters, and static weigh scales, where accuracy, low maintenance and zero drift are paramount. Solid construction, low maintenance, and a compact package allow it to be installed almost anywhere.

CENTRIFEEDER

---

The CentriFeeder^™ with Integrated Control Valve accurately measures and controls the flow of any dry, free-flowing solid. Through the use of a highly customizable touch screen HMI, a PID control loop is established that regulates the integrated control valve feeding our patented CentriFlow^® Meter. The outcome is an easily maintained consistent flow that can, under some conditions, be controlled over a 100:1 range, for batching, ratio-control or for any application where a controlled flow is required. The CentriFeeder^TM is great for stand alone applications or can be linked togehter through a centralized, master HMI to control multiple products via a recipe entered into the master HMI.

CENTRIFILL & CENTRIWEIGH SYSTEMS

---

CentriFill™ Systems were initially developed to permit the accurate filling of primary packages of snack foods and confectionery products into shipper cartons. The shippers were transferred to secondary packaging operations. Accurate primary package counts were critical. A second version was developed for filling cereals and grains into primary packages at speeds ranging form 50 to 300 packages per minute depending upon the material. Preventing under fills and over fills is of primary importance. CentriFill™ is presented as a turnkey solution to accurate high speed filling requirement. A typical system includes in-feed and flow control devices to present the product to the metering unit and an out-feed device electronically looped with the container presentation conveyor. The CentriFill™ design can be integrated into a broad variety of process lines.