A pressure gauge with a measurement range of 0–10 bar has a quoted inaccuracy of 1.0% f.s. (1% of?

Question

...  full-scale reading).
(a) What is the maximum measurement error expected for this instrument?
(b) What is the likely measurement error expressed as a percentage of the output reading if this pressure gauge is measuring a pressure of 1 bar?

Answer

1% of 10 is 0.1 so the reading might be off by 0.1 bar, and that can happen anyplace on the scale. If the correct reading is 1 bar then the error might amount to 10% of that, but it is not a percent of the reading: it is a percent of full scale.

A pressure gauge with a measurement range of 0–10 bar has a quoted inaccuracy of 1.0% f.s. (1% of?

Answers (1)