Hydrostatic level measurement in hazardous areas
The LS-1000 submersible pressure sensor from WIKA is now certified in accordance with the European ATEX and international IECEx directives. The sensor continuously measures the level of liquid media in industrial environments. Thanks to the new approvals, companies can now also use it in hazardous areas of ATEX zone 0 and 1 as well as IECEx zone 0, 1 and 2. This applies to numerous applications, for example in the process industry, wastewater and environmental technology and power generation. Typical applications include wastewater lifting stations, pumping stations and oil and fuel tanks.
The LS-1000 measures levels hydrostatically from 1 ... 10 m [3.28 ... 32.81 ft]. Optimal long-term stability of 0.2 % ensures precise measured data and minimal signal drift. Thanks to its robust design, the stainless steel submersible pressure sensor is permanently sealed in accordance with ingress protection IP68. A specially developed cable provides effective strain relief, and potting of the cable inlet provides additional protection. Each individual device undergoes a helium leak test during the final inspection. Even the smallest leaks and hairline cracks are detected here.
The submersible pressure sensor is maintenance-free, minimising failures, downtimes and total cost of ownership. It can be operated with a 5 V battery, as the energy-saving ratiometric 0.5 ... 4.5 V output signal consumes less than 5 mA. This places such a low load on the battery that it does not need to be replaced for years.