dynisco pressure transmitter
The dynisco pressure transmitter is an electronic device that converts energy from one form to another. In the case of the dynisco pressure transducer, the process fluid exerts a force on a flexible, thin metal diaphragm at the sensor tip. This, in turn, puts pressure on a small measuring device called a strain gauge. The barometer then converts the pressure gauges into a low-level millivolt signal, which can be converted to another type of signal.
For a variety of reasons, the best sensor design is to keep the strain pressure as close to the process fluid as possible. However, the high temperature of polymer melting in an extrusion program is beyond the sensitivity of a sensitive barometer and jeopardizes its performance. To get the most out of the pressure without compromising it, a remote sensing element is located and separates it from the high temperature. Therefore, this challenge is transformed by transferring the process pressure to the strain, without losing the pressure force integrity. This is done using a transfer fluid that best replicates the pressure of the process from a distance.
Filled materials in dynisco pressure transmitters can have both positive and negative benefits. There are three things to consider when choosing a filler:
- The density of the filled material is related to the maximum pressure
- Thermal expansion coefficient related to pressure drift with temperature change
- Operating temperature range that corresponds to the maximum temperature before degradation or welding.
For high temperature plastic applications where the polymer is melted and mercury is the most widely used transmission medium. The density of mercury makes it very resistant to compression, so it shows an accurate process pressure of more than 30,000 psi. Mercury is also exposed to heat and thermal expansion. In addition, mercury retains its liquid properties below freezing and above 350 ° C, resisting hardness, boiling or evaporation at temperatures that affect other liquid metals and fill the material. . To date, there is no other substance that offers the same function as mercury.
The mercury trade is classified as toxic. The United States established the Clean Air Act in the early 1990s to address mercury emissions from power plants. Tracking regulations in the United States and other countries have established mercury control programs in all programs as much as possible. While intermittent fillers are available for pressure measurement, no one can substitute enough mercury for polymer melt applications.
Closed loop pressure control for extrusion process
Extrusion is an ongoing process and economic production depends on maintaining stable production and melting quality at controlled speeds. Current screw design technology, the use of DC drives, computer controllers, and raw material testing help to deliver extrusion at relatively constant temperatures, pressures, and viscosities.
Dealing with transducer pressing spikes
The UNESCO pressure transducer transmits vital information to control the closed loop of the relay
One of the fastest growing areas for the use of pressure gauges is the extrusion of multilayer barrier structures. Many leading companies in the field of extrusion design and production, such as Cloeren, a Dynisco pressure transducer engineer, apply pressure to their systems to control the closed-loop melting process.
Dynisco technology is widely installed and end-user accepted
Echo series sensors are available worldwide. 3.33mV / V, 4-20mAA, 0-5VDC or 0-10VDC outputs designed for them Work with most industrial controls. In addition to pressure melting measurements, the Echo series offers optional melting temperatures measured with J, K or RTD type thermocouples . Eco series are equipped with 1 / 2-20 UNF or M18 threads for installation.
Specifications of dynisco pressure transmitter
- dynisco pressure transducer accuracy : ۵ 0.5
- TiAlN aperture coverage is standard
- Output mV / V, 0-10VDC or mA available
- Integral temperature sensor option
- Pressure range (psi): 5M, 3M, 5M, 7.5M, 10M & 15M
- Pressure ranges: PSI, Bar, Kg / cm2, MPa, KPA
- Diaphragm bearing temperature: 662 ° F (350 ° C) for Rigid; 752 ° F (400 ° C) for Flex
- Aperture material: 17-4 PH SST
Rose Calibration Company in Melbourne, Australia with over ten years of experience provides all calibration, maintenance, and repair services throughout Australia. If you live in Sydney, Melbourne, Adelaide, Perth, Geelong, and Brisbane, you can receive your quote in less than two hours by fill-up the form via the “Booking” link.