Using Manometers to Precisely Measure Pressure, …

Using Manometers to Precisely Measure pressure , Flow and Level Precision Measurement Since 1911 .. A1eriam Instrument llrl [ a Scott Fetzer compaii] Table of Contents Manometer Principles .. :. 2 Indicating Fluids .. 5 Manometer Corrections .. 6 Digital Manometers .. 9 Applications Guide .. 12 Glossary of pressure Terms .. 16 pressure Conversions .. Inside Back Cover 1 Manometer Principles The manometer, one of the earliest pressure measur-ing instruments, when used properly is very accurate. NIST recognizes the U tube manometer as a primary standard due to its inherent accuracy and simplicity of operation. The manometer has no moving parts sub-ject to wear, age, or fatigue. Manometers operate on the Hydrostatic Balance Principle: a liquid column of known height will exert a known pressure when the weight per unit volume of the liquid is known. The fundamental relationship for pressure expressed by a liquid column is p = differential pressure P 1 = pressure at the low pressure connection P2 = pressure at the high pressure connection p density of the liquid g acceleration of gravity h height of the liquid column In all forms of Manometers (U tubes, well-types, and inclines) there are two liquid surfaces.

Using Manometers to Precisely Measure Pressure, Flow and Level Precision • Measurement Since 1911 A1eriam Instrument l lrl [ a Scott Fetzer compaii]

Loading..

Tags:

  Using, Pressure, Measure, Manometers, Using manometers to precisely measure pressure, Precisely

Information