The crude tank contains unprocessed and unrefined crude oil. Level measurements are necessary to control the amount of oil in the tank and to prevent overflow. To measure the level, non-contact radar level sensors are used. Level sensors which come in contact with the crude oil can fail because crude oil can be very viscous, especially during cold winters. Furthermore, the contacting element often requires maintenance.
The 9116B IS universal converter powers the two-wire style radar transmitter and isolates the signal, while the output is connected to the control system. The relay in the 9116B is configured as a window function alarm and provides an additional level of safety by switching if the tank level is unusually high or low.
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