Digital Chemical Dosing System Provides High Accuracy, Excellent Repeatability For Hatcheries0 pages

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Digital Chemical Dosing System

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Provides High Accuracy,

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Excellent Repeatability For Hatcheries

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Gregg E. Johnson, Thermo Fisher Scientific, Fluid Handling, Barrington, IL, USA.

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Appropriate treatments are neces-

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sary to reduce the dissemination and

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amplification of infectious diseases

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and pathogens that can lead to egg,

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fry, and fingerling mortality. But

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overdosing drugs or chemicals such

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as formaldehyde solutions can lead to

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above normal treatment losses while

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underdosing will provide inadequate

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treatment. Maintaining precise dosing

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accuracy often presents major chal-

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lenges for hatcheries - especially those

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operating older generation peristaltic

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pumps with insufficient calibration

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capabilities and poor repeatability.

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Dosing precision

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Unlike many pump designs,

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Thermo Scientific Masterflex®

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pumps easily maintain a precise,

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constant dosage rate with excellent

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repeatability - providing accuracies

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of ± 0.5% or better. With adjustable

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650:1 resolution, bi-directional

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flow and self-priming capabilities,

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Masterflex systems provide for

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smooth, seamless operation plus

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the dosing precision that is crucial

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for the integrity of flush treatments.

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Many Masterflex pump heads offer

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fixed occlusion to ensure optimal

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performance without the need for user

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adjustments.

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A versatile tool

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High accuracy and repeatability

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combined with low maintenance have

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made the Masterflex pump a versatile

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and invaluable piece of equipment

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for today's modern hatcheries.

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Designed for fast, simple field set-up

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and calibration, Masterflex offers

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maintenance-free brushless motor

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drives and roller and ball bearing

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pump head construction that provides

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for a robust, powerful pump in a small

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package - ideal for portable use for

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multiple applications. Many models

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include digital drives with simple

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push-button calibration for optimum,

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repeatable performance.

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Innovative, cost-effective digital

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dosing systems

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The risks to hatchery operations from

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underdosing or overdosing chemical

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treatments are too high today to rely

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on old dosing technology. Hatcheries

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using older generation peristaltic

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pumping systems that provide only

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a single turn (10:1) potentiometer,

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or no speed adjustment, and poor

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field calibration capabilities not only

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create extra work for technicians,

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User-friendly Masterflex systems are an

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invaluable piece of equipmentfortoday's

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modern hatcheries

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it can present a serious potential

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risk when making critical chemical

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additions.

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Masterflex pumps, on the other

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hand, are innovative, cost-effective

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digital chemical dosing systems,

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optimally designed to provide

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reliable, precise, and repeatable

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chemical treatments for virtually all

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hatchery applications. Rather than

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relying on a 10:1 speed adjustment

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that provides ±10 % accuracy,

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Masterflex systems provide a

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manually adjustable 650:1 resolution

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for up to 20 times the accuracy, and a

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repeatability rate of 99.5 percent.

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Whether it's bath, dip or flush

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chemical treatments for hatching

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trays, hatchery troughs, raceways, or

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ponds, Masterflex peristaltic systems

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help maximize productivity and

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profitability through precision dosing.

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Field calibrations and set-up are easy

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and precise. Plus, hatcheries can dose

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up to eight runways simultaneously

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rising a single Masterflex drive

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mounted with eight Masterflex pump

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heads, reducing manpower and

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operational costs even further.

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