Level Measurement Basics presentation...

Measurement

1. LEVEL MEASUREMENT By : Um@ir Anwar Bhatti

2. LEVEL MEASUREMENT Why Level Measurement? Level Devices?

3. LEVEL MEASUREMENT Principles Of Level Measurement Simple Level Measuring Instruments Floats And Displacers Magnetic Float Devices Conductance And Capacitance Probes Sonic And Nuclear Radiation Instruments

4. DATUM LINE OR ZERO POINT Always Vertical Height of the liquid Innage ( from the bottom ) Outage ( from the top ) Volume of the Liquid

5. DATUM LINE OR ZERO POINT

6. DIRECT LEVEL MEASUREMENT

7. VOLUME OF THE CONTAINER Vertical Cylinder Horizontal Cylender

8. FACTORS INFLUENCING LEVEL MEASUREMENT Physical Conditions Nature & Type of the Liquid Caustic, Corrosive, Viscous, Toxic, Explosive, Flame able Excessive Turbulence Temperature Pressure Open / Close tanks

9. CLOSE TANK Pressure Vessels Boiler drum Hight pressure and temperature Prevents hazardous vapors & gases from escape

10. TYPES OF MEASUREMENT REQUIRED Continuous Numeric value ( 0 – 100 % ) Single point Predetermined value High or Low levels On and Off control Valves or Pumps Actuates relay