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The company manufactures around 800 pressure and temperature measurement products in thousands of variants. The measuring ranges extend between vacuum and 15,000 bar.WIKA products can measure and display temperatures in the spectrum between minus 250 and plus 1800 degrees Celsius.
Pressure sensors can alternatively be called pressure transducers, pressure transmitters, pressure senders, pressure indicators, piezometers and manometers, among other names. Pressure is an expression of the force required to stop a fluid from expanding, and is usually stated in terms of force per unit area.
Fuji Electric was established in 1923 as a capital and technology tie-up between Furukawa Electric, a spinoff from Furukawa zaibatsu company, and Siemens AG. [4] [5] The name "Fuji" is derived from Furukawa's "Fu" and Siemens' "Ji", since German pronunciation of Siemens is written jiimensu in Japanese romanization.
SIMATIC is a series of programmable logic controller and automation systems, developed by Siemens. Introduced in 1958, the series has gone through four major generations, the latest being the SIMATIC S7 generation. The series is intended for industrial automation and production. The name SIMATIC is a registered
For example, the measurement of product conductivity is a typical way to monitor and continuously trend the performance of water purification systems. The electrolytic conductivity of ultra-high purity water increases as a function of temperature ( T ) due to the higher dissociation of H 2 O in H + and OH − with T .
The pressure transmitter modulates the current on the loop to send the signal to the strip chart recorder, but does not in itself supply power to the loop and so is passive. Another loop may contain two passive chart recorders, a passive pressure transmitter, and a 24 V battery (the battery is the active device).