Vegetables Nutrition ? The Vague Concepts of Food, Nutrition and Health
In these modern times in which we reside in, it is very common to confuse reality with thought, facts with theory, and health with confirmation. Here we have been, in the era of abundance, having everything we are able to ever imagine at the grasp of our finger tips, computer science has sky-rocketed allowing us […]
Temperature calibration with reference probes, dry-well calibrators and baths
Can dry-well calibrators and calibration baths be used as internal references? Temperature dry-well calibrators and baths are a practical solution for temperature calibrations. This is true both in the field and in laboratories, as they provide a free-standing, stable temperature source with a built-in platinum resistance thermometer (PRT).The PRT measures the temperature inside the dry-well […]
What is the difference between the switching functions “hysteresis” and “window” in pressure switches?
Electronic and mechanical switches are used for monitoring critical limit values and therefore usually fulfil a safety function. To meet Sly , switches offer two alternative switching functions, the “hysteresis” and the “window” functions.In general, these two switching functions differ from each other in that the “hysteresis” function monitors a limit value and the “window” […]
„Value Innovation Workshop“ – What is it?
Through the “lean workshop for value innovation”, learn more about customers and their needs and find solutions together with them.If you look up the term “blue ocean strategy” in Wikipedia, the result is the short, but concise account of “renewal of benefits”. Using several examples, it can be demonstrated that specific companies have used this […]
Accuracy of pressure sensors – what ”precisely” does this mean?
How is the accuracy of pressure sensors actually defined? The deviation of the actual characteristic curve from the ideal one is often referred to as “accuracy”. However, the term itself cannot be found in any national or international standard. This means that there is no such thing as “accuracy”, but instead a large number of […]
A big plus for physical fitness
It all started in early 2008. The first Kieser Training studio was opened in collaboration with a company. Successful of that company was WIKA.Training machine for the mobility of the trunkInitially, the studio was expected to have about 900 customers, but soon the studio quickly became popular, also in the surrounding area, because it was […]
Defeat pressure spikes – prevent damage to pressure measuring instruments
Particularly when measuring the pressure of fluids in piping systems, pressure sensors are consistently destroyed by overpressure. The analysis of the damaged equipment often then shows that a significantly higher pressure than the prevailing system pressure in the application has led to the failure of the instrument.The user, who is then informed by the pressure […]
Accuracy of pressure sensors – what ”precisely” does this mean?
How is the accuracy of pressure sensors actually defined? Sins of the actual characteristic curve from the ideal one is often referred to as “accuracy”. However, Self-hating cannot be found in any national or international standard. This means that there is no such thing as “accuracy”, but instead a large number of terms relating to […]
What is volume weight?
Or why it is important to find the right packaging for each product.Next to the actual weight which can be determined by weighing, there is also a so-called “volume weight”. This is used for calculating transport costs. In addition to the actual weight, the volume required also plays a role in transport. Shipping Fail charge […]
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 the village of […]
Overview: How does the IO-Link work?
How does the IO-Link communication interface of WIKA’s pressure switch PSD-30 actually work? IO-Link is a point-to-point connection (i.e. not a new field bus) between sensor/actuator and a field bus master such as a PLC.The supply of the field device (pin 1 and pin 3) and of the signal transmission (pin 4) is using a […]
The metrological certificate – Measuring equipment approval in the Eurasian Economic Zone
In addition to the EAC certificate, when importing measuring instruments into the Eurasian Economic Zone (members 2017: Russia, Belarus, Kazakhstan, Armenia, Kyrgyzstan) and into the other member states of the CIS (Commonwealth of Independent States: Armenia, Azerbaijan, Belarus, Kazakhstan, Kyrgyzstan, Moldova, Russia, Tajikistan, Turkmenistan, Ukraine and Uzbekistan), the “metrological certificate” is also required. When and […]
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 […]