DYNA Instruments GmbH

DYNA M-flow - Flowmeter for bulk solids

• For pneumatic conveying and freefall processes
• Easy installation and start up
• Contact-less and integral measuring
• Analogue output, pulse output, RS232, RS485 and threshold alarm relay

Using state-of-the-art microwave technology the flowmeter DYNA M-flow is designed for flow measurement in metallic pipelines from a few kg/h to many t/h. The system is suitable for on-line measurement of powders, dust, pellets, and granulates.

The measurement principle of the DYNA M-flow is based on the physical Doppler-Effect, whereas the sensor generates a uniform field in the microwave frequency range inside the pipeline. These microwaves are being reflected by particles passing through the pipe. Calculation of frequency and amplitude changes allows an accurate determination of the solid's mass flow rate. Nonmoving particles like dust accumulation are excluded from calculations.

http://www.dynainstruments.com/en/products/dyna-m-flow.html

DYNAchute - Flowmeter for mass flow rate measurement of bulk solids

HIGH-PRECISION MEASURING SYSTEM,

ACCURACY 1% AND BETTER

NO CALIBRATION, MAINTENANCE-FREE

FROM 100kg/h -100t/h

• No moving components

• Independent from changing product properties and flow velocity

• Gentle product flow, passive measurement principle

• Minimum operating costs

• Free product flow also if device is switched off

• Easy to integrate

The patented measuring system DYNAchute is a unique flow meter which combines proven weighing technology with contactless velocity-measurement. By measuring the weight and the flow velocity at the same time — similar to the belt-weigher principle — the mass flow rate of pourable bulk solids is determined in free fall processes with high accuracy. Compared to impact meter, changing product-properties (e.g. density, particle size, friction properties) or varying fall velocities (e.g. under silos) have no influence on the measuring accuracy of the system. Hence a complex calibration in the process especially with several products is not required. Also regular recalibration is not necessary while a very high reproducibility of the measuring results is granted. Operational cost can be reduced to an absolute minimum and regular maintenance is normally not required, because the flow meter does not have any moving components, the solids are flowing smoothly over the weighing chute and the sensor system is well protected.

http://www.dynainstruments.com/en/products/dynachute.html

DYNAguard GM  Filter Monitor / Broken Bag Detector for Baghouses / De-dusting Plants

• Electrostatic measurement principle (modified tribo principle)
• Relay- or analogue output (4…20mA)
• Signal damping adjustable
• ATEX Zone 2/22

The dust monitor DYNAguard GM is used to detect malfunctions in dedusting plants, which can be caused by damaged or incorrectly installed filtration media.

The used electrostatic measurement principle is based on a modified triboelectric principle. Not only particles which hit the measuring rod are detected, but also those passing by.

Deposits on the sensor rod do not influence the measurement, since only moving particles are detected.

Because signal damping is adjustable, short peaks do not cause a false alarm. The signal gain can be adjusted easily according to the individual process.

With the analog output version (in connection with a PLC) it is possible to monitor more than one threshold and to plan filter maintenance by monitoring the cleaning cycles.

http://www.dynainstruments.com/en/products/dynaguard-series/dynaguard-gm.html

DYNAguard Series  - Flow switches for bulk solids, powder and dust

• Integral Measurement over the whole pipeline diameter
• Relay- Transistor- or Analogue Output (4…20mA)
• ATEX Zone 2/22

The flow switches of the DYNAguard Series were specially developed for bulk solids and powder processes.

We use two different measurement principles and have developed a large range of different process couplings, which makes it easy to integrate a flow switch into any process.

Solutions for diverse tasks in various industries have been realized: Pharma, chemical, paint, building material, food, animal feed, steel industry, waste incineration …

• Blockage Alert
• Filter Monitoring
• Bridging Alert
• Flow Monitoring of Additives
• Empty Hopper Alarm
• Leakage Monitoring
• Sieve-/Screen Monitoring
• Overflow Alert

High tonnage or a few milligrams, big pipe diameters or small flexible hoses, there is a solution for almost every task.

http://www.dynainstruments.com/en/products/dynaguard-series.html

DYNArad - Flowmeter for bulk solids (up to 500 t/h)

HIGHLY ACCURATE, ROBUST MEASURING SYSTEM

INDEPENDENT FROM CHANGNG PRODUCT PROPOERTIES

• No installation in the product flow
• Independent from product properties
  and conveying conditions
• Gentle contact-free measurement method
• Low-wear
• For high mass flow rates
• Pressure resistant up to 64 bar

To determine the mass flow in pneumatic conveyors and free-fall applications the measurement system DYNArad combines the measured values of a radiometric concentration measurement and a velocity measurement (DYNAvel).

The simultaneous determination of these two factors makes this mass flow measurement independent from variable product properties (density, grain size, humidity, friction properties) or process conditions (pressure, velocity, temperature…).

Once the system is calibrated in the process it is not necessary to recalibrate it since it guarantees a very good repeatability of the results.

DYNArad operates contact-free and does not have any moving parts. In this way the possible wear is reduced to a minimum. For the concentration measurement we are using instruments of our long-term partner Berthold Technologies in Bad Wildbad.

http://www.dynainstruments.com/en/products/dynarad.html