Feed and Grain

Dynatrol® provides Bulk Solids and Liquid Level Detection for feed and grain industry applications. Our point level detectors are used for measurement of high, intermediate, or low level detection of dry ingredients, liquids or slurries in bins, hoppers or feeders.

Bulk Solid Measurement

Typical applications for the Dynatrol® CL10-DJ series of point level detectors for the feed and grain industries include:

  • Alfalfa Pellets
  • Animal Feed
  • Brewer's Grains
  • Cereals
  • Coarse-grain Applications
  • Corn
  • Feed Additives
  • Fillers
  • Fine-grain Applications
  • Flax Seed
  • Meal
  • Minerals
  • Pet Food
  • Popcorn
  • Rice
  • Rye Grain
  • Soy Beans
  • Soy Dust
  • Soy Flakes
  • Starch
  • Wheat Grain
  • ...and more

Liquid Level Measurement

Typical applications for the Dynatrol® Liquid Level Detector for the feed and grain industries include:

  • Liquid Feed
  • Liquid Molasses
  • Soybean Oil
  • Flaxseed Oil
  • Liquid Supplements
  • and more

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Bulk Solids that Pack or Bridge

This level detector operates successfully with consistent results on difficult product applications like FLOUR, COCOA, SUGAR, PHARMACEUTICAL POWDERS, POWDERED LIME, FERTILIZER, FOOD SEASONINGS, PLASTIC POWDERS, PVC and PVA POWDER, STARCH, TALC, TiO2 POWDER and additional bulk solid materials.

The Dynatrol® CL-10GJ Detector is designed for application to either high or low point level detection of bulk solids. The GJ Detector is constructed to handle sensitive or problem applications that have a tendency to bridge or pack.

Used on the following applications:

  • Adipic Acid Powder
  • Alfalfa Meal
  • Aluminum Powder
  • Baby Formula Dust
  • Baghouses
  • Bone Meal
  • Boric Acid Fire Retardant
  • Bread Crumbs
  • Bubblegum Sugar
  • Calcined Ground Gypsum
  • Calcium Hypochlorite
  • Catalyst
  • Cement
  • Choco Powder
  • Chromium Oxide Powder
  • Clay Powders, Whiting
  • Cocoa Powder
  • Coffee Dryer
  • Cool Ash
  • Copper Powder
  • Copper Sulfite Dust
  • Dextrose Powder for Bubble Gum
  • Dicalcium Phosphate
  • Dog Chow Fines
  • Dried Potato Dry Fertilizer
  • Dry Gelatine, Photographic Gel
  • Dust
  • Dust Collectors
  • Epoxy Flake Resin
  • Face Powder
  • Feed Pellets in Small Space
  • Fertilizer
  • Fertilizer, Herbicide
  • Fibers
  • Film fibers
  • Fine powder, surge bins
  • Fire extinguisher powder
  • Flake Flock, Macerated Fibers
  • Flour
  • Fluoride Powder
  • Food Grade Gelatin
  • Freeze-dried Tobacco
  • Fumaric Acid
  • Fume Control Systems
  • Granular PET (polyethylene)
  • Granulated Fertilizer
  • Grass Seed Flour
  • Gunpowder
  • Hard Flour
  • HTSA powder
  • Hydrated Lime
  • Hydrated Lime Powder
  • LDPE Pellets
  • Lime
  • Magnesium carbonate
  • Malic acid powder
  • Manganese dioxide
  • Metallic dust, powdered ores
  • Milk powder
  • Natural vegetable powder
  • Oats
  • Parmesan Cheese
  • Peat Moss
  • Pet food Powder
  • PET Plastic Flake
  • Pharmaceutical Powder
  • Plastic Pellets
  • Plastic Powder
  • Plastic Regrind
  • Pollution Control
  • Polymer Fluff
  • Polymer Products
  • Polyphosphate
  • Polypropylene Flake
  • Polystyrene Regrind
  • Potato Flakes
  • Powder
  • Powder Packaging System
  • Powder, Anti-oxidants
  • Powder, Pipe Coating
  • Powdered Cellulose
  • Powdered Drink mix
  • Powdered Lime
  • Powdered Limestone
  • Powdered Metal
  • Powdered Sugar
  • Protein Powder
  • PVA powder
  • PVC powder
  • Regrind
  • Resin pellets, regrind
  • Salt fines
  • Sawdust powder
  • Seasonings
  • Semolina Flour
  • Silica Dust
  • Silver Oxide
  • Sodium Azide
  • Sodium Bicarbonate
  • Sodium Mmetabisulfite Preservative
  • Spices
  • Starch
  • Talc
  • Thermoset Molding Powders
  • TiO2 Powder
  • Toner
  • Uranium Oxide
  • Very Fine Clay
  • Wet Polymer
  • Zinc Oxide Powder

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Ammonium Hydroxide

Dynatrol® Density Measurement Systems are used extensively for measurement and control of density, specific gravity, or percent concentration with Ammonia solution, also known as ammonium hydroxide, ammonia water, ammonical liquor, ammonia liquor, aqua ammonia, aqueous ammonia, or simply ammonia.

  • Eliminate multiple hand sampling when mixing
  • Real time percent concentration measurements of ammonium hydroxide with no effects from pressure changes or pipe vibration
  • Virtually no maintenance costs

Automation Products, Inc. was approached by a chemical company to devise a solution for online measurement of an ammonia solution. The process is describer below.


The chemical company needed online measurements while mixing anhydrous ammonia with water. Their pressurized ammonia was bubbled into a mixing tank with ultra pure water, and a sample stream was constantly pumped from the bottom of the tank to give a real time reading of percent concentration for aqueous ammonia.


The chemical company chose a Dynatrol® Density System to solve their problem. The Dynatrol® Density Meter has the Temperature vs. Density vs. Percent concentration curves programmed into the Series 2000 Digital Density Converter. The density meter provides 4-20 mA signals to the chemical company’s control room for percent concentration and temperature of the ammonia and water solution. Since the Dynatrol® Density Meter outputs percent concentration, there was no need to program a complicated set of algorithms into the DCS control system to calculate percent concentration from density.

After months of comparing hand sample measurements to the measurements of the Dynatrol® Density Meter, the company found that the Dynatrol® Density Meter correlated directly to the hand measurements. The company now uses the Dynatrol® Density System in the control of the mixing process. This eliminates the bi-hourly hand sampling that technicians would have to perform.

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Phosphoric Acid

The Dynatrol® CL10-HY Density Cell and Series 2000 Density Digital Converter can be used to measure phosphoric acid.

The phosphoric acid application software is designed to use the temperature and density information that comes from the CL-10HY cell to calculate product baumé, density at a reference temperature, specific gravity and percent concentration. Automation Products Inc. uses the same reference tables that are used by phosphoric acid manufacturers to cross check results generated by our phosphoric acid software.

The CL-10HY and Series 2000 combination have been used to measure phosphoric acid for chemical applications and low concentration acid mixing. It has also been used to measure high concentration phosphoric acid in acid make-up applications.

Dynatrol® Density Cells can be supplied with tantalum media contact parts as well as carpenter 20, stainless steel and other alloys that can be chosen for your specific application.

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Low Density Powders

The Dynatrol® Type CL-10GS Level Detector is designed for high, intermediate, or low-point level detection of bulk solids. It is constructed to handle lightweight media applications that are difficult to measure or detect. The GS Level Detector operates successfully with consistent results on difficult process applications such as fine, low density powders or fluff, flock, fumed silica, polyester and polymer powders.

Used on the following:

  • Boron dust
  • Cotton gin trash
  • Diaper fluff
  • Electrostatic precipitator
  • Flock
  • Fluff
  • Fumed silica
  • Glass wool
  • Ground peat moss
  • Perlite
  • Polyester flock
  • Polyester powder
  • Polymer powders
  • Powder
  • Powder Paint
  • Refuse, Paper
  • Regrind Plastic
  • Silicon Powder

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