Level Tables Advantages Flashcards
used when it is important to control or monitor the material at all points in a tank – 0% to 100%
Continuous level devices
Point level devices
usually used when it is important to know the lowest point or highest point
No calibration with medium required
Ultrasonic
Non-contact (lowest cost)
Ultrasonic
Installation at top
Ultrasonic, Radar (non-contact), Guided Wave Radar
Very accurate ±0.5 mm (0.02 “)
Radar
Very accurate ±0.2mm (0.04”)
Guided Wave Radar
No re-setup required
Radar & Guided Wave Radar
High temperatures and pressures possible
Capacitance Level Measurement
Fast speed of response
Capacitance Level Measurement
Established principle
Capacitance Level Measurement
Very cost effective
Capacitance Level Measurement
Accuracy independent of dielectric constant, density and conductivity
Ultrasonic, Radar, Guided Wave Radar
Interface measurement possible
Capacitance Level Measurement
When all else fails
Radiometric (gamma) Level Measurement