CyberCertPrepOT Security FundamentalsOT Fundamentals: ICS/SCADA BasicsEASYFree question
A field device converts the physical level of liquid in a tank into a standardized 4-20 mA electrical signal sent to the controller. The component performing this conversion and signal conditioning is termed the:
- A.Actuator
- B.Setpoint generator
- C.Final control element
- D.Transmitter
Why D is correct
A transmitter conditions a sensor's raw measurement into a standardized signal, classically 4-20 mA, suitable for transmission to the control system. Actuators and final control elements, by contrast, act on the process rather than measure it.
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