Eastern Instruments Solid Flow Measurement and Control

About Eastern Instruments

Eastern Instruments is an engineered solutions company located adjacent to the North Carolina International State Port in Wilmington, North Carolina. Since 1984, the Company has been engaged in the development of solid particle mass flow and airflow measurement and control systems for clients in a variety of industries including the food, petrochemical and agricultural industries. Many of the legend companies use Eastern Instruments in the processes that make the brands that touch the lives of millions every day.

Founded in 1984, Eastern has evolved into a manufacturing organization that builds engineered-to-order components as well as complete systems for clients located around the globe. Backed by more than thirty patents and an experienced staff of engineers and designers, the Company’s focus is on the use of mass flow technology in applications that involve mixing, blending, inventory control, truck/rail car load out, and much more

Description

FLOW MEASUREMENT SPECIALISTS: Accurate Flow Measurement and Control for Solids and Air Flow

Eastern Instruments is a flow measurement solutions company that specializes in accurate flow measurement devices for both solid particles and air/gas. Making world class products is a passion of ours and we hope that you find our complete lines of flow measurement devices as useful and as exciting as we do.

Eastern Instruments delivers world class flow measurement devices for solids as well as air, within nearly every industrial sector. We hope you find our site useful and we hope you enjoy its new look.

SOLIDS FLOW :  Featuring a variety of gravimetric devices that can both measure and control the flow of nearly any solid, Eastern Instruments’ solids handling product line includes flow meters, feeders, fillers and complete systems that will meet all of your solids handling needs.

AIR FLOW : Eastern Instruments also manufactures a complete line of air flow measurement devices that includes a variety of velocity averaging pitot tubes, duct mounted devices and flow conditioners that profile the air as it is being measured. Eastern Instruments also manufactures a multivariable differential pressure transmitter that, when coupled with any differential pressure based flow element, will accurately measure the flow of air or gas within a duct.

Eastern Instruments Products

Eastern Instruments manufactures a complete line of mass flowmeters and flow measurement devices for accurately measuring both air flow and solids. Our line of solids mass flow meters can be incorporated with a feed device of our design or with an existing feed device to not only measure but also control the flow of product. Contact us today with your application.

SOLIDS FLOW MEASUREMENT AND CONTROL

Centriflow Solid Mass Flow Meters

The CentriFlow Meter from Eastern Instruments is a Solid Particle Mass Flow Meter that is durable, accurate, maintenance-free, compact, and cost-effective. It is unique and positioned to replace weigh belts, impact meters, loss in weight meters, and static weigh scales, anywhere that accuracy, low maintenance, and zero drift are paramount. Utilizing our patented CentriFlow Technology, the CentriFlow Meter offers accurate, cost-effective and simple solutions to your process measurement needs.

The CentriFlow Meter comes in a variety of unique and highly customizable configurations and models that allow the CentriFlow Meter to be used in virtually any application where accurate flow measurement is required.

Centrifeeder VIB: Integrated Vibratory Control

The CentriFeeder line of feeders provides accurate, real-time flow measurement, as well as near perfect control of flow rate and total. For blending applications, control the flow rate of an individual ingredient, or combine several CentriFeeders for near perfect recipe control. If you are controlling ingredients entering a batching process, use the CentriFeeder for controlling the total of one or more ingredients entered into the batch.

The CentriFeeder with Integrated Vibratory Control accurately measures and controls the flow of any dry, free-flowing solid that can be transported via a vibratory conveyor. Through the use of a highly customizable touch screen HMI, a PID control loop is established that regulates the vibratory conveyor feeding our patented CentriFlow Meter. The outcome is an accurate, easily maintained, consistent flow that can be used for mixing, ratio control, or even recipe based blending.

The CentriFeeder VIB works by integrating the conveying abilities of a vibratory conveyor with the supreme measurement power of a CentriFlow Mass Flow Meter. Product is fed into the hopper which sits above the vibratory conveyor. This product can be fed continuously or in shorter increments for batching. The product feeds down through the vibratory conveyor and finally, down through the CentriFlow Meter which is positioned directly after the vibratory conveyor. As product passes through the CentriFlow Meter, both the flow rate and total are measured.

This data is used by the CentriFeeder VIB’s electronics which creates a PID control loop by using the flow rate and totalization information to control the speed of the vibratory conveyor. Again, the vibratory conveyor can be used to both control the flow rate and to control based on total. If a totalization set point is entered into the electronics, the vibratory conveyor will be told to shut off after the set point has been reached. The result is extremely accurate control of flow rate (for continuous operations) and total (for batching operations) for any product that can be conveyed via a vibratory conveyor.

Centrifeeder ICV : Integrated Control Valve

The CentriFeeder line of feeders provides accurate, real-time flow measurement, as well as near perfect control of flow rate and total. For blending applications, control the flow rate of an individual ingredient, or combine several CentriFeeders for near perfect recipe control. If you are controlling ingredients entering a batching process, use the CentriFeeder for controlling the total of one or more ingredients entered into the batch. Please see below for additional information regarding the use of the CentriFeeder ICV as a filling station for filling bags, boxes, bulk bags or Gaylord containers. The CentriFeeder with ICV, when used for filling, is called the CentriFill. The CentriFill can be used as a manual filling station or as an automatic filler that fills passing containers.

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.

The CentriFeeder ICV can be used for filling as well as flow control. The CentriFill, as the CentriFeeder is known when configured in filling mode, contains a special build of software and special screens that graphically display the filling features of the CentriFeeder ICV. The CentriFill can also be equipped with a range of options including a foot pedal for manual filling initiation.

• CENTRIFILL 1000:MANUAL FILLING STATION
  • The CentriFill 1000 is a high speed weigh filler which measures a predetermined mass of product as it fills any small container over 25 lb (11.5 kg) in size. The unique filling capacity of the CentriFill 1000 allows extremely fast fills without the slow dribble-feed often plaguing many fillers. Building on the precision of the CentriFlow and speed of the CentriFeeder Meter’s fraction of a second start/stop capabilities, the CentriFill 1000, available in 6″, 12″ and 24″ models, offers revolutionary capabilities for quickly and accurately filling virtually any container with flowable, granular solids in a variety of industries.
  • Featuring customizable touch-screen HMI electronics and optional foot pedal activated batch start capabilities, the CentriFill 1000 offers exceptional customization, unlimited ease of use and extremely fast and accurate fills for any granular product, including nuts, beans, wood pellets, plastics, chemical granules, candies, cereals, animal feed and more.
• CENTRIFILL 2000: SEMI-AUTOMATIC FILLER
  • The CentriFill 2000 is similar to the CentriFill 1000 in its function, however it can be used as a semi-automatic weigh filler which automatically measures a predetermined amount of product as it fills boxes or containers 25 lbs or larger in size. The CentriFill 2000’s fill cycles are automatically initiated using a variety of methods, including motion sensor activated conveyor systems or Diverter systems that change orientation based on the throughput through the CentriFill device. The fills can even be initiated from a PLC or another controller.
• RAILCAR AND TRUCK FILLING STATION
  • Accurately fill both railcars and trucks with nearly any product from granular pellets and grains to powders. The Railcar and Truck Loadout System enables you to program multiple compartment fills or to customize each fill as required.

System Solution

A great engineering team has always been at the heart of Eastern Instruments’ commitment to quality and ingenuity. EI has forged a solid reputation as innovators by solving complex problems for customers in a variety of industries. Our goal, through the seamless integration of flow measurement solutions into complex process systems, is to simplify and optimize process accuracy and performance.

• RAILCAR AND TRUCK FILLING
  • Accurately fill both railcars and trucks with nearly any product from granular pellets and grains to powders. The Railcar and Truck Loadout System enables you to program multiple compartment fills or to customize each fill as required.
• RECIPE BLENDING SYSTEMS
  • Every manufactured product with more than a single ingredient has a specific blend, or “recipe,” that optimizes the features of that product. Utilizing the CentriFeeder^� device, our recipe-blending system can easily and accurately blend any number of individual ingredients together to ensure a perfectly blended end product every time.
• BATCHING WITH FLOW RATE CONTROL
  • For easy and accurate bulk bag filling, utilize our bag filling system to increase your fill rates by reducing costly and time consuming overages and underages. Our bag filling system not only accurately fills bulk bags, but will also properly ratio multiple ingredients and properly mix the various products for highly accurate and consistent bulk bag fills every time.
• BIO-ENERGY COMBUSTION
  • The combustion of biomass into energy requires both a fuel source and enough air/oxygen to maintain a consistent burn. To optimize the combustion phase, the fuel-to-air ratio must be both accurate and sustainable. By combining flow measurement solutions from both our air flow and our solids flow measurement product lines, you can control and maintain the fuel-to-air ratio in order to optimize combustion which will, in turn, reduce cost and maximize energy production.
• COMPLETE SYSTEM OPTIMIZATION
  • No matter the end product of your process, every process has a running capacity that allows the system to run most efficiently and effectively. From the beginning of your process to the very last step, Eastern Instruments offers flow measurement solutions that enable you to optimize your process.
  • Eastern Instruments’ Complete System Optimization allows you to minimize costs due to rejected or reclaimed product and to monitor your process for changes in output that may signal errors or malfunctions upstream.

Air/Gas Flow Measurement

VAP VELOCITY AVERAGING PITOT TUBE

VAP Pitots have a unique Velocity Averaging and Parallel Plate proprietary design. When inserted in air flow ducts, the VAP Pitots provide an accurate, differential pressure output allowing for precise air flow measurement or control of your process. VAP Pitots are designed for Superior Accuracy (SA) for clean air applications or plug resistant (PA) for heavy particulate-laden applications. The VAP Pitots can be installed in existing or new ducts or incorporated into flow-conditioning devices, such as the High Beta, designed for short duct run applications with turbulent air flow or to obtain optimal accuracy. The VAP Pitot can be manufactured out of Anodized Aluminum, Stainless Steel or PVC for accuracy in nearly any application.

VAP PITOTS FOR ANY INSTALLATION

• VAP INSTALLATIONS IN ROUND DUCTS
  • VAP Insertion Style pitots can be used in either round ducts or in square / rectangular ducts. When used in round ducts, the insertion ports are typically beveled to fit the curved exterior of the duct wall. The standard profile of pitot is used in any duct with a diameter of 72″ or smaller. For larger ducts, the VAP-XL pitot can be used. VAP pitots are perfect for clean air or for air with particulate.
• VAP INSTALLATIONS IN RECTANGULAR DUCTS
  • The VAP Pitot can also be utilized in Square / Rectangular duct work. The pitots’ insertion ports are mounted to the exterior of the duct and the pitots are then bolted to the insertion ports. The standard profile of pitot is used for installations where the short side of the duct is 72″ or smaller. For larger ducts, the VAP-XL can be used.

DSV – DUCT SECTION VAP

Eastern Instruments’ DSV – Duct Section VAP retains all of the air flow measurement features and capabilities of the VAP Pitot, while offering the additional feature of being exceedingly easy to order and install. The DSV is a round, spooled section of duct that contains an array of VAP Pitots along with straightening vanes that help channel air flow through the flow measurement section of the DSV. Like stand-alone VAP Pitot arrays, the DSV can be installed into new or existing ducts for both clean air applications and for particulate-laden applications. Each pitot contained within the DSV has multiple total and static sensing ports that are specifically located in order to provide a full traverse of the duct, thus eliminating the concern of measurement error due to highly random distributions of air. Its use of VAP^3® Pitot technology ensures that the DSV is an extremely accurate and convenient method of measuring air flow.

Whether installed in round ducts or rectangular ducts, the DSV consists of an array of pitots that is pre-mounted into a section of duct. The duct section typically contains flanges for easy installation and features straightening vanes which will assist in eliminating the effects of swirl on the flow measurement. The integral pitot array is tubed together and offers a single High and a single Low port that will tube to the QVT transmitter as well as any other model DP or Multivariable Transmitter.

DSV CONFIGURATIONS

• DSV – ROUND DUCTS
  • The Round DSV comes in standard sizes ranging from 4″ up to 36″ in diameter and is offered in a variety of materials and pressure ratings that can accommodate even the most hostile air flow measurement environments. The DSV is also equipped with flanges on either side of the spooled duct section, allowing for easy installation upon arrival at your site. Most importantly, however, is the off-the-shelf design of the DSV that allows for minimal lead times from order to installation. The DSV can be used for either clean air or for particulate-laden air applications. The measurement pitots can be manufactured out of either Anodized Aluminum or Stainless Steel.
• DSV – RECTANGULAR DUCTS
  • The Square or Rectangular DSV can be manufactured in a variety of sizes to fit nearly any duct size and is offered in a variety of materials and pressure ratings that can accommodate even the most hostile air flow measurement environments. The DSV is also equipped with flanges on either side of the duct section, thus allowing for easy installation upon arrival at your site. The DSV can be used for either clean air or for particulate-laden air applications and the measurement probes can be manufactured out of Anodized Aluminum or Stainless Steel.

HBP – HIGH BETA PROCESS (INDUSTRIAL)

Air flow measurement is most accurate in straight duct runs where air flow can be evenly profiled across the duct at the point of measurement and where no turbulent, reverse, or cyclonic flow patterns are present. Typically, it can take as much as 10 diameters of straight duct run to eliminate turbulent or reverse flow, while it can take as much as 30 diameters of straight duct run to eliminate cyclonic flow. If you do not have the proper amount of straight duct run present to accurately measure your air flow, some type of flow conditioner is required.

The HBP – High Beta Process Flow Conditioner is ideally designed for industrial process applications where the expansive straight duct runs needed for accurate flow measurement are not present. Perfect for new or for retrofit applications, the HBP is designed for installations with relatively no straight duct runs upstream or downstream and eliminates cyclonic, turbulent and reverse flow at the point of measurement. The HBP consists of a flanged spool section, a converging duct section, a set of straightening vanes and an array of VAP Pitots. The HBP ensures an accurate differential pressure output that provides precise air flow measurement for tighter control of your process.

FEATURES AND BENEFITS

QVT DP AND MULTIVARIABLE SMART TRANSMITTER

The QVT from Eastern Instruments is available in the SV (Single Variable) or MV (Multivariable) mode and has been optimized for the extremely accurate flow measurement of air and gas at or near atmospheric pressure (5 – 25 psia). Allowing for the measurement of up to four separate process variables including Differential Pressure, Temperature and Absolute Pressure, the QVT will calculate the fully compensated mass flow of air or gas in nearly any duct. When coupled with any Differential Pressure based flow element, the QVT ensures extremely accurate flow measurement down to +/-0.50% of Reading over 100:1 range of DP and 10:1 flow turndown.

The QVT can be configured as either a multivariable transmitter or as a single variable transmitter, measuring DP (Differential Pressure). The various configurations are listed below.

• SV: SINGLE VARIABLE DP TRANSMITTER
  • The QVT can be utilized as a single variable Differential Pressure (DP) Transmitter that will accurately measure the differential pressure of flow across an accompanying flow element. The flow element can either be an EI manufactured flow element or an existing flow element by a manufacturer of choice. The QVT single variable transmitter is configured to output a 4-20 mA signal that is equivalent to the DP.
• SV: MASS FLOW DP TRANSMITTER
  • The QVT can also be used to accurately measure flow. If both Temperature and Absolute pressure are relatively constant, the QVT can calculate mass flow based on a measured DP and an input or constant value for temperature and absolute pressure. The QVT DP Flow Transmitter can be extremely accurate as long as temperature and Absolute pressure remain constant. The QVT MF – DP Transmitter is configured to output a 4-20 mA signal that is equivalent to the flow through a duct.
• MF: MASS FLOW MULTIVARIABLE TRANSMITTER
  • The QVT is at its most accurate as a multivariable transmitter where it can measure up to four unique process variables including Differential Pressure, Process Temperature and Absolute Pressure. The QVT will remain extremely accurate regardless of the changes in process temperature or Absolute Pressure. The QVT then calculates mass flow based on these measured variables. The QVT MF – Multivariable Transmitter is configured to output a 4-20 mA signal that is equivalent to the fully compensated mass flow of air flowing through a duct.

Source : easterninstruments.com

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