The ethanol from the distillation process contains about 90% ethanol. The ethanol product is stored in a tank before being shipped from the plant.
A pressure transmitter is used to sense the tank level in order to prevent overflow. For safety reasons, two pressure transmitters are mounted at different locations on the storage tank. Each 4…20 mA two-wire style pressure transmitter is connected to a PR 5714 programmable LED indicator, which powers, isolates and re-transmits the signal. The displays are mounted in a stainless steel control cabinet close to the product tank for convenient local readout and retransmission of the 4…20 mA signal for the control system.
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