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2. Level sensor - Wikipedia

   en.wikipedia.org/wiki/Level_sensor

   Conductive level sensors are ideal for the point level detection of a wide range of conductive liquids such as water, and is especially well suited for highly corrosive liquids such as caustic soda, hydrochloric acid, nitric acid, ferric chloride, and similar liquids. For those conductive liquids that are corrosive, the sensor's electrodes need ...

3. Industrial control system - Wikipedia

   en.wikipedia.org/wiki/Industrial_control_system

   A feedback control loop is directly controlled by the RTU or PLC, but the SCADA software monitors the overall performance of the loop. For example, a PLC may control the flow of cooling water through part of an industrial process to a set point level, but the SCADA system software will allow operators to change the set points for the flow.

4. Conductivity (electrolytic) - Wikipedia

   en.wikipedia.org/wiki/Conductivity_(electrolytic)

   Inductive sensors are suitable for harsh chemical conditions but require larger sample volumes than electrode sensors. [9] Conductivity sensors are typically calibrated with KCl solutions of known conductivity. Electrolytic conductivity is highly temperature dependent but many commercial systems offer automatic temperature correction.

5. Pepperl+Fuchs - Wikipedia

   en.wikipedia.org/wiki/Pepperl+Fuchs

   Pepperl+Fuchs SE is a German multinational company headquartered in Mannheim, Germany.The company manufactures electronic products for fabrication and process automation. It is specialised in sensor manufacturing, such as sensors used in automatic doors in elevators, encoders, AS interfaces, RFID systems, [1] barcode solutions, [2] and explosion protection, [3] as well as components for the ...

6. Resistance thermometer - Wikipedia

   en.wikipedia.org/wiki/Resistance_thermometer

   A common fixed-point calibration method for industrial-grade probes is the ice bath. The equipment is inexpensive, easy to use, and can accommodate several sensors at once. The ice point is designated as a secondary standard because its accuracy is ±0.005 °C (±0.009 °F), compared to ±0.001 °C (±0.0018 °F) for primary fixed points.

7. La Niña Still Expected To Emerge; Although Weak, There ... - AOL

   www.aol.com/news/la-ni-still-expected-emerge...

   La Niña occurs when the ocean's surface temperatures in the central and east-central equatorial Pacific (circled below) reach a specific cooler-than-average level, which can then affect ...