How is Span calculated in an instrument?

INSTRUMENTATION MCQ CHALLENGE

Let’s test your instrumentation fundamentals!

Question:

How is Span calculated in an instrument?

A) LRV + URV

B) URV ÷ LRV

C) URV − LRV

D) LRV × URV

Before checking the answer, try solving it yourself and comment your choice below.

Understanding terms like LRV, URV, and Span is essential for instrument calibration, scaling, PLC programming, DCS configuration, and 4–20 mA signal calculations.

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