14 June 2019

Advantages and disadvantages of manometer

The manometer is measured an unknown pressure by balancing in against gravitational force of liquid heads. It can be used to measure dynamic pressures and differential pressures. It can be measure pressure ranging from low to high. Here this page covers the advantages and disadvantages of the manometer  to better understand this topic. 

Advantages of  manometer:
  • It has a low cost
  • The manometer is suitable for low-pressure applications
  • It is simple in construction
  • It has better sensitivity
  • It has good accuracy
  • It has simple operation and construction
  • It does not have to be calibrated against any standard, the pressure difference can be calculated from the first principles
  • The manometer is available for a large range of filling fluids of varying specific gravity
Disadvantages of manometer:
  • It is large in size and bulky
  • It needs leveling
  • No fixed reference is available
  • In manometer, the error is introduced due to condensation
  • It has no over range protection
  • The manometer has a poor dynamic response
  • They have a smaller operating range which is on the order 1000 KN/meter.meter
  • They are fragile and hence offer less portability
  • The manometric fluids density depends on temperature. Hence errors may result due to change in the temperature
  • It has a slow response which makes it unsuitable for measuring fluctuating pressures