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  2. IP code - Wikipedia

    en.wikipedia.org/wiki/IP_Code

    IP codes IP65 touchscreen display IP65 LED lamp. The IP code or ingress protection code indicates how well a device is protected against water and dust. It is defined by the International Electrotechnical Commission (IEC) under the international standard IEC 60529 [1] which classifies and provides a guideline to the degree of protection provided by mechanical casings and electrical enclosures ...

  3. Level sensor - Wikipedia

    en.wikipedia.org/wiki/Level_sensor

    Air bubbler systems contain no moving parts, making them suitable for measuring the level of sewage, drainage water, sewage sludge, night soil, or water with large quantities of suspended solids. The only part of the sensor that contacts the liquid is a bubble tube which is chemically compatible with the material whose level is to be measured.

  4. Blue board - Wikipedia

    en.wikipedia.org/wiki/Blue_board

    Blue board may refer to: Computing. Blue Board (software) Commodore Bulletin Board system from the 1980s; European waterways.

  5. Multilevel groundwater monitoring systems - Wikipedia

    en.wikipedia.org/wiki/Multilevel_groundwater...

    The Westbay casing system is designed to allow the monitoring of multiple discrete levels in a single borehole. The casing comes in two different sizes, the MP38 system (38 mm, 1.5-inch) and MP55 system (55 mm, 2.25-inch). One single string of water-tight Westbay casing sections is installed in the borehole.

  6. Stream gauge - Wikipedia

    en.wikipedia.org/wiki/Stream_gauge

    Within the USGS, the Water Resources Division carries the responsibility for monitoring water resources. To establish a stream gauge, USGS personnel first choose a site on a stream where the geometry is relatively stable and there is a suitable location to make discrete direct measurements of streamflow using specialized equipment.

  7. Blue sign - Wikipedia

    en.wikipedia.org/wiki/Blue_sign

    A blue sign or blue board is used by inland waterways vessels within the Trans-European Inland Waterway network when performing a special manoeuvre or passing on the starboard side. On navigable waterways vessels normally pass each other on the port -side, so the display of the blue sign and flashing white light signal intention to pass each ...

  8. Water level (device) - Wikipedia

    en.wikipedia.org/wiki/Water_level_(device)

    A water level device showing both ends at the same height. A water level (Greek: Aλφαδολάστιχο or (υδροστάθμη) [Alfadolasticho]) is a siphon utilizing two or more parts of the liquid water surface to establish a local horizontal line or plane of reference.

  9. Blue Board (software) - Wikipedia

    en.wikipedia.org/wiki/Blue_Board_(software)

    Blue Board is a bulletin board system software created by Martin Sikes (1968–2007) for the Commodore 64 in the 1980s in Vancouver, British Columbia, Canada, and sold worldwide. Due to optimized code and memory allocation , Blue Board boasted very fast performance for a BBS on that hardware platform.