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The Thermo Scientific Ramsey DE10and DE20 impact weighers are unique devices designed to measure the mass flow rate and total mass of free-flowing particulate materials. They provide a low cost, yet highly accurate, method of measuring the mass flow of dry solids and powders for inventory process control and can help you save thousands of dollars by reducing waste and improving product quality.
ProductSpecifications

Impact Weighers DE10 & DE20 - 23496 Thermo ScientificRamseyDE10 and DE20

In-Line Weighing ofBulkMaterials

Principle of Operation These impact weigher models are designed to measure the force generated by the impact of flowing material on a sensing plate. This force creates a mechanical deflection as it impactsthe plate. This deflection is measured by a sensorand converted into an electrical signal. That signal is then processed by the ThermoScientific Ramsey Micro-Tech 2106 or 3106 electronic controller,which displays the flow rate and total weight. For more information, refer to the separate product specification sheet on the Ramsey Micro-Tech 2000 or 3000 series of electronic instruments.The impact weighers are designed so thatthe impact plate can only move horizontally. This means that from the total impact force "Fi," only the horizontal component "Fh" is measured. Principle of Operations "Fv" is ignored. This guarantees that changes in the weight of the sensing plate, due to material build-up or sensing plate wear, will not affect the zero or accuracy of the system. The Thermo Scientific Ramsey DE10 and DE20impact weighers are designed to provide continuous mass flow measurement in mechanical conveying systems without interrupting the flow of material. They are ideal for applications in vertical flow streams where weighfeeders or conveyor scales will not fit or cannot be applied.These systems are easy to install andmaintain. They can be used with a variety of pre-feed devices, including screw or vibratory feeders, belt conveyors, drag conveyors, air slides or rotary valves.With more than 7,000 impact weighingsystems in operation around the world, we have dealt with a wide variety of materials. Some typical materials monitored include: fertilizer,cement, charcoal, mineral sands, woodchips, plastic pellets, grain, potato chips, rice and confectionary materials. Ramsey DE10 Advantages •Unique design allows installation even in the most difficult process environments•Measurement is not affected by changing the impact point on the sensing plate•Build-up on the sensing plate cannot influence the zero point •High reliability and low maintenance •Mechanical damping system absorbs shocks and damps vibration •Sensor allows some overload without damage to the system •Sensor is located in a dust-tight enclosure external to the process stream•Operates accurately in pulsating or surging flows Ramsey DE20 Advantages •Capable of accurately measuring very low flows•Compact design fits easily into areas with limited room•Easy to install flange-to-flange fitting •Sensor located external to the process and protected by a dust-proof seal•Easily retrofitted to existing conveying,batching or delivery systems
Principle of Operation Impact sensing plate Material flow FhFvFi