The selection of the right cable or line for transmitting signals on your machine has essential influence on the device availability. Usually, when determining the instruments of machines and plants, a profound amount of attention is directed at deciding on the best sensors.
For example, the user determines which measuring principles are employed for level measurement, which power supply should be provided to the machine and which kind of signal transmission ought to be used. Usually, the cables shown in the wiring schemes as simple connection lines between sensor and SPS are problematic. This poses an interesting paradox in the automation technology ? a sensor is tested for highest demands to make sure it meets the requirements of the application form, whereas a cable is only regarded as a component which supposedly guarantees a reliable connection under all circumstances.
However, cables and connectors pose the most frequent resources of error. pressure gauge octa is exactly where unforeseen prospect of increasing machine availability can be found. During my span of research I learned that in a high two-digit percentage of all cases, renowned cable manufacturers traced back sensor failure on machines to mechanical failure of the cable because of faulty installation, handling and especially due to the selection of an unsuited cable for the specific application. Principally, there is no patent fix for determining which cable and which plug connector is most beneficial suitable for the application.
For example, flexibility demands for cables used in level probes for level measurement in deep wells aren?t high, whereas the demands on tensile strength together with high longitudinal and transverse water tightness are. In level probes, plug connectors are barely ever applied because of the insufficient permanent leak tightness. For machine tools which are create in factory buildings, the easiest cable materials with a straightforward M12 connector are used. In this instance, however, the use of a suitable cable that permanently withstands ambient conditions such as temperature fluctuations and that has resistance against oils and fats can significantly increase the option of your machine.
The usage of cable assemblies with factory pre-assembled connectors also prevents failure risk through improper on-site assembly. It is therefore a fallacy that cables will be the same and that any given cable with the sufficient amount of wires would work for an application.
In another of my previous articles, I drew up a short overview of the most relevant criteria for choosing cables and connectors. Invest some time in specifying the right cable for the application. Think about the demands your plug link with sensors and PLC must meet. An individually matched wiring concept offers a measurable increase of the machine availability and higher safety during operation.
Should you need assistance or consulting for specifying a suitable pressure sensor and associated cable / connector, feel free to contact us.