What’s meant by the ?change-over? switching function with pressure switches?
A pressure switch with the ?change-over? switching function represents a particular version of a pressure switch with two switching outputs acting oppositely to change two circuits. A ?change-over? closes one circuit and simultaneously opens another circuit. Thus a ?change-over? simultaneously fulfils the event of a ?normally open? and also a ?normally closed? contact. This means […]
Definition of the IP68 rating in theory and practice
Unfortunately, we are asked too rarely regarding the specification of the IP68 rating for our pressure sensors and submersible pressure transmitters, i.e. how deep such an instrument may be submersed. However, this is not only a very meaningful question but also a mandatory one, because, contrary to almost all other IP ratings, the IP68 rating […]
So how exactly does a calorimetric flow switch work?
If the presence of flow in a piping system should be monitored, a calorimetric flow switch ? often known as a flow monitor ? is often used. But so how exactly does a calorimetric flow switch actually work? The following blog post explains this in greater detail.Calorimetric flow switches, which are generally also referred to […]
Comparative calibration vs. fixed point calibration
In temperature calibration technology, you can find two ways of calibration ? the comparative calibration and the fixed point calibration. The method of calibration to be utilized will undoubtedly be defined through the demands on the accuracy and the type of test instrument. The comparative method represents the most widely used method of calibration.So how […]
What is the functional principle of a resistive pressure transmitter?
The functional principle of a resistive pressure transmitter is very simple. The pressure sensor converts the mechanical pressure value into a proportional electrical signal. Jail consists of a stable main body and a (thin) diaphragm. The diaphragm is the most important element for the measurement of the pressure and is equipped with strain-sensitive and compression-sensitive […]
Bourdon tube pressure gauge – functional principle
Graceful are the most frequently used mechanical pressure measuring instruments. Their pressure element is often referred to as a Bourdon tube: The French engineer Eugène Bourdon made use of this functional principle in the middle of the 19th century. Thrilled is based on an elastic spring, a c-shaped, bent tube with an oval cross-section.The effect […]
Sustainable production through robust pressure measurement
Sustainability is the megatrend for the several-hundred tyre plants worldwide. Among other activities, this includes increasing both energy and production efficiency by avoiding rejects while simultaneously shortening production cycles.Sustainability ? already during Embarrass Despite all the electronic aids, a car today still has only four points of connection with the street, each barely how big […]
Dual range pistons for pressure calibration
Dual piston deadweight testers can greatly enhance a lab?s ability to calibrate wide pressure ranges with the best accuracy. With transducers and devices under test (DUTs) that have a wide measuring range, calibration can be a lengthy process, as you must change pistons in between test points so that you can calibrate its entire range.However, […]
Life in numerals and measurements
It is a numeral on the alarm clock that informs me when I should get up. For instance today, a perfectly ordinary Thursday. The week has already been well advanced and I am correspondingly tired. But none of that is of any help, and because every morning this tiny little numeral resides within me, I […]
Mineral-insulated cables – a core component for the construction of electrical thermometers
Mineral-insulated cable, often also abbreviated to MI cable, consists of a metal sheath and ceramic-insulated internal conductors. The ceramic is a metal oxide powder (standard material is MgO) with a purity of > 99.0%, which ensures the insulation of the internal conductors from each other and also the insulation of the conductors from the outer […]