Question

Discuss the advantage of using new technology of calibrating pressure gauge rather than deadweight tester

Answer 1

Advantages of using the new technology of Calibrating pressure gauge when compared to the deadweight tester:

1. Use of digital technology to calibrate the pressure gauges would increase stability, Accuracy and Covers a wide range of Pressure.
2. Digital Calibration would increase the portability of the Work and decreases the cost of purchase and operating costs
3. It has the ability to directly read the Magnitude in multiple pressure units
4. It removes the necessity to adjust for gravity when compared to the deadweight method
5. It includes some useful built-in functions to speed up the calibration process and generate certificates
6. No extra corrections required if it is fully temperature compensated
7. Its accuracy is not affected by ambient or air temperature
8. it provides a wider temperature range up to -20 degree Centigrade
9. It is very quick to set up and User friendly
10. Lighter and more portable can be carried to different locations without any risk and investment
11. Less Expensive
12. it includes different features of controlling pressure, current, voltage and power on / off

Disadvantages:

1. Shorter life time
2. Requires Power supply
3. Poor pressure stability due to adiabatic effects
4. requires multiple sensors to cover a wide range of pressure
5. lower accuracy at low pressure ranges less than 9 psi
6. accuracy of 0.025% - 0.1%