The various possible configuration levels for a pressure measurement solution are not defined conceptually in any standard. At WIKA we have chosen the following terminology: A pressure sensor (also pressure transmitter) delivers a standardised, …
Pressure sensor
“UL Recognized”, “UL Listing” – What’s the difference?
| Jens Bargon | Know-howThe “UL approval” is an important and well-known product approval. That there are different approvals for “UL” (“Underwriters Laboratories”) is, however, less known. When one talks in general about “UL approval”, in most cases “UL Listing” …
RoHS marking and certificates
| Peter Ottens | Know-howI 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 …
Signal clamping in pressure transmitters
| Michèle Beyer | Know-howIn certain applications, the current or voltage signal of a pressure transmitter must not exceed and/or drop below a critical value. This can be ensured with the aid of so-called signal limiting. If the pressure on a pressure transmitter lies within the nominal …
Hydrogen and pressure sensors – What must be observed?
| Michèle Beyer | ApplicationsWhen pressure sensors come into contact with hydrogen, this often results in difficulties. Unfortunately, I very often notice in my job that our customers are not aware of this prior to use. This is why they often do not even tell us that their medium contains …