31 Calculate the followings A A pressure sensor has a range

31. Calculate the followings A. A pressure sensor has a range of 25 to 170 psi, what is the error when measuring 100 ps, if the accuracy of the gauge is ±1.5% of a span? A temp sensor has a range of -100°C to 450°C, what is the error when measuring a temp of 50°C, if the accuracy of the gauge is ±2% of a reading? B. A temp sensor has a span of -25 to 150C. Specify the error when measuring 107 C, if the accuracy of the sensor is C. ±0.5% of span, ii, ±2% FSD, iii. ±1.3% of reading. To determine the error percentage in an instrument, an engineer repeatedly measured the pressure and found that the reading varies between 48 and 52 psi. If the instrument can read values between 10 psi and 140psi. determine the following D. i. error of span, ii. Error of FSD

Solution

A) Error = +- 0.015 (170-25)psi = +- 2.18 psi

B) Error = +- 0.02(450+100) = +- 11⁰CC

C) i) Error = +-0.015 (150+25) psi = +- 2.625 psi

ii) Error = +- 0.02 × 150 = +- 3 psi

iii) Error = +- 0.013 × 103 = +- 1.34 psi