Advantages and Disadvantages of Hydrostatic Level Measurement
Hydrostatic pressure and level measurement enjoys a consistently high popularity due to it’s high robustness, high reliability and simple installation of this technology. The following characteristics constitute the greatest advantages and limitations over other measuring principles:
Advantages
• Proven and established measuring principle with high reliability, fieldtested millions of times
• Robust measuring process, uninfluenced by disruptive factors such as dust, foam, vapour, buildup, contaminants, etc.
• Reliable measurement unaffected by many physical characteristics such as conductivity, dielectric coefficient or viscosity
• Level measurement unaffected by vessel geometry and existing installed equipment
• Simple installation and operation of submersible pressure transmitters and conventional pressure sensors without the need for calibration or adjustment
• Direct contact with the medium
• Numerous alternative design variations and sensor technologies for almost every application
Disadvantages
• Unsuitable for bulk material
• Accurate measurement requires either media with constant density or continuous density measurement of the medium
Author: Enrico Bossart