Long-term stability vs. long-term drift
A value for long-term stability or long-term drift is usually given in the data sheets for pressure sensors. However, very few users are familiar with the exact meaning and, above all, the distinction between the two terms.Which standards are the two terms defined in?Long-term drift, and the required tests connected with it, are specified in […]
Pressure equipment directive 97/23/EC PED – Pressure limits 0.5 bar and 200 bar for pressure sensors and pressure transmitters
In connection with the pressure equipment directive 97/23/EC (PED), a pressure limit of 200 bar is often mentioned. But what does this limit mean for manufacturers and/or companies that place pressure sensors, pressure transmitters and pressure equipment on the market? Generally it can be said that, depending on the type of medium to be measured […]
Measuring instruments for combined heat and power plants (CHP)
The range of combined heat and power plants (CHP) is very large, as may be the high variance of different plant types. The distinction is made by the generated power/heat output on the main one hand and by the power source used on the other. For several CHP plants, a large number of physical parameters […]
Connection diagram of PNP and NPN transistor outputs for electronic pressure switches
Manufacturers of electronic pressure switches often offer both PNP and NPN switching outputs. Here is a brief explanation how the two different outputs should be connected.In principle, both are bipolar transistors in which only the internal arrangement of the pn transitions differs. This is why the load must be connected differently to the transistor outputs.PNP […]
Handball player from Ukraine (16) trains with premier league side
What does a talented handball player who’s had to leave his homeland do? Maksym, a 16-year old from Ukraine, shares accommodation with other Ukrainian refugees in WIKA’s plant 3 in Klingenberg. In the meantime, however, he is training at TV Großwallstadt – thanks to a WIKA employee.Kerstin Wüst found out about the young man at […]
Flexible pressure monitoring in blood plasma processing
The processing of blood plasma as a raw material for a range of different medicines places complex demands on pressure monitoring. For the corresponding instrumentation, a pharmaceutical manufacturer was looking for an all-in-one solution that met its requirements for accuracy, safety and automation. They finally decided on the model UPT-2x process transmitter from WIKA.Fractionation of […]
Award: WIKA strengthens the common good in many ways
Among a lot more than 2,000 large employers nationwide, WIKA was named one of Germany?s most effective companies 2020 by the business journal Wirtschaftswoche. A thorough study ? conducted right across Germany by the ?Service Value? institute ? evaluated how ?valuable? a company is. A value judgement based not upon turnover, profits or market shares. […]