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 …
General
14-segment-display vs. 7-segment-display: Advantages/comparison with regard to readability in electronic pressure switches
| Jürgen Reiser | GeneralDurable, robust and easy-to-read are the requirements for the display of industrial electronic pressure switches. State-of-the-art is typically a 4-digit 7-segment LED display in red. However, in particular the display of letters on the seven segments is only possible …
Connection diagram of PNP and NPN transistor outputs for electronic pressure switches
| Jürgen Reiser | GeneralManufacturers 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 …
Integrated M12 Y-connector vs. external T-piece: Advantages/ comparison in CANopen pressure sensors
| Jürgen Reiser | GeneralThe main reason for using a pressure sensor with CANopen interface compared to customary analogue sensors is the low degree of wiring required and the high reliability of signal transmission. The data and power cables of the CAN bus are combined in a single shielded …
The definition of MTTF and MTBF- and what is the difference?
| Anna Gries | GeneralThe two definitions of MTTF and MTBF differ only slightly. Written out, the two acronyms read as follows: Mean Time To Failure (MTTF) – i.e., the component/instrument will be replaced, following a failure Mean Time Between Failures (MTBF)– mean time between …