What is a pressure transmitter?
The manufacturers of pressure sensors use many different terms for the various designs of measuring instruments, such as pressure sensor, pressure transmitter, pressure transducer, etc.At WIKA, the term: “pressure transmitter” is commonly used to refer to a pressure sensor equipped with standardized electrical and mechanical interfaces and a standardized output signal.The working principle of a […]
Pressure switches with metal bellows: Stable repeatability, no risk of leakage
What advantages do pressure switches with metal bellows offer and what is the foundation for these? Advantages are based on the seamless design of these measuring system. This solution enables permanently stable repeatability and, simultaneously, eliminates the risk of leakage.Bellows measuring systems derive from a mature manufacturing technology. The production of metal bellows, for instance […]
Refrigeration systems with higher energy efficiency through accurate pressure control
Due to the worldwide rising energy costs, the energy-efficient operation of refrigeration systems becomes a must. According to estimates, more than 90% of the refrigeration systems worldwide are not yet equipped with continuous control.They have been optimized and set for a certain operating state/refrigeration capacity – which means that they operate outside the optimum in […]
Load pins: Definition and application areas
A load pin provides the connection between force-transmitting machine elements and also allows the simultaneous measurement of the force acting on the sensor. The load pins are fixed in the axial direction as well as against rotation. A small gap of about one fifth of a millimeter between the axle retainer and the slot ensures […]
Responsible handling of sulphur hexafluoride
Sulphur hexafluoride – or SF6 gas for short – is, so far, the gas with the strongest known greenhouse effect. Now to the greenhouse effect is about 23,000 times that of CO2 and is persistent in the atmosphere.Source: Federal Statistical Office: Survey of particular climate-active materials “sulphur hexafluoride” (SF6), Wiesbaden, 2015Sulphur hexafluoride is defined as […]
10 years boarding school
Following the tsunami in 2004, a boarding house was set up by WIKA in Machilipatnam, in the Indian state of Andhra Prades, and inaugurated ten years ago. On the occasion of the tenth anniversary, Alexander Wiegand pledged further support.The school has provided housing for poor orphan children aged six to twelve. After Gambling of Machilipatnam […]
Electronic pressure sensor/pressure transmitter or mechanical pressure indicator?
For some years now, it has been possible to increasingly automate production processes, and by doing to to achieve substantial cost reductions in some cases. This raises the question: does it still make sense to use mechanical pressure measuring instruments?The answer to this question is obvious and simple: yes. Both electronic pressure sensors and mechanical […]
Selection criteria for dial thermometers (2): process temperature
Which dial thermometer is suitable for which process? Whether a bimetal or a gas-actuated thermometer is used depends on several factors – for example, on the process temperature.Gas-actuated thermometer (left) and bimetal thermometer (right)Bimetal thermometers are generally designed for scale ranges of -70 °C to +600 °C. Psychological , in this respect, for unfilled instruments. […]
RoHS marking and certificates
I am often asked, “How is a RoHS marking actually carried out?” The quick answer: EU RoHS will, from 22nd July 2017, be visible in the CE marking and the declaration of conformity linked to it. China RoHS conformant instruments carry a green logo. Non-conformant instruments in accordance with China RoHS carry an orange logo […]
Award: WIKA strengthens the common good in many ways
Among more than 2,000 large employers nationwide, WIKA was named among Germany?s most valuable companies 2020 by the business enterprise journal Wirtschaftswoche. An extensive study ? conducted First across Germany by the ?Service Value? institute ? evaluated how ?valuable? an organization is. A value judgement based not upon turnover, profits or market shares. Instead, this […]