MTTF and MTTFD – What is the difference?
What is the MTTF value?The MTTF value is a term from the field of risk analysis & risk evaluation. The exact meaning is mean time to failure or simply the mean life of a component. The MTTF has gained particular relevance due to EN ISO 13849-1. In accordance with this standard, the performance level can […]
Sustainable production through robust pressure measurement
Sustainability may be the megatrend for the several-hundred tyre plants worldwide. Among other things, this consists of increasing both energy and production efficiency by avoiding rejects while simultaneously shortening production cycles.Sustainability ? already during productionDespite all of the electronic aids, an automobile today still has only four points of connection with the road, each barely […]
Gotcha! Counterfeit devices in Malaysia
Suspicion, test purchase, confiscation: once again, the Brands & Patents department has managed, with the help of police and justice officials, to uncover a warehouse containing counterfeit WIKA products. This time, the raid was on a dealer in Malaysia. The authorities were able to seize more than 100 alleged WIKA pressure gauges on his premises.Another […]
Mega orifice plate manufactured in India as a showpiece
Micro Precision Products (a WIKA Group company) is now able to showcase another great achievement. The biggest orifice plate ever manufactured in India, up to now, was produced in Palwal. The order was placed by one of the largest EPC companies on the subcontinent. The mega orifice plate was finally commissioned in Bathinda in hawaii […]
The ELMS1 overload protection saves lives
There is always a lot going on in a port like Antwerp. Ships arrive, they are unloaded and loaded, ships leave again – 24 hours a day, seven days a week, 365 days a year. All as fast as possible, because time is money. In Antwerp in 2018, a container throughput of 11.1 bn € […]
Switch points in vacuum ranges: How are they set?
Setting the switch points of an electric pressure switch for an application in the vacuum range is not a self-explanatory task. pressure gauge 10 bar explains what needs to be taken into account with this setting. It involves a pressure switch with a hysteresis function. Instruments with this configuration are most regularly installed in industrial […]
Mechanical pressure switches: So how exactly does one set the switch point?
Mechanical pressure switches are usually given a factory-set switch point. Nevertheless, some users want to make this configuration themselves, as, for example, the pressure conditions in the application can change. Regarding pressure switches with a measuring aspect in a bellows, diaphragm or piston design, the manual setting of the switch point, reset point or hysteresis […]
Which will be the available configuration levels for pressure sensors?
The various possible configuration levels for a pressure measurement solution aren’t defined conceptually in virtually any standard. At WIKA we’ve chosen the next terminology:Pressure sensor (Pressure transmitter)Pressure sensor (pressure transmitter)A pressure sensor (also pressure transmitter) delivers a standardised, processed signal within a housing with commonly available pressure connection and electrical connection. Typically, it is usually […]
What does RoHS really mean?
RoHS is an abbreviation for “Restriction of (the use of certain) Hazardous Substances”. In accordance with the European Union’s RoHS directive, the restriction relates to the use of such substances in electrical and electronic equipment. Its objective is to protect human health and the environment.Directive 2011/65/EU lists the following RoHS-regulated substances:LeadMercuryCadmiumHexavalent chromiumPBB – Polybrominated biphenyls […]
Which vibrations are pressure transmitters subjected to in the laboratory?
Basically, there are three common vibration tests with which the leading manufacturers test their instruments; with fixed and sweeping frequency (IEC 60068-2-6) and a broadband random pattern (IEC 60068-6-64). In the first test, the pressure transmitter is subjected to a sinusoidal vibration. This is chosen so that it conforms to the later application (if this […]