Modulevel pneumatic liquid level controls are displacer actuated level sensors that provide output signals in direct proportion to changes in liquid level.
Literature
Additional Tools:
Measurement Principle:
As the buoyancy force on a displacer changes with liquid level movement, a range spring supporting the displacer extends or compresses, moving a magnetic ball. A magnet carriage within the controller head follows the ball producing a change in output.
Features:
Stable output signal is unaffected by surface turbulence
Standard models handle pressures to 4265 psig (294 bar)
Good for process temps. from -150° to +700° F (-100° to +370° C)
Visual indicator is independent of air supply
Accurate output signal provided over a wide specific gravity range
316 stainless steel displacer and trim
Applications:
Steam generator feedwater heater regulation
Fractionating column level transmitter
Ethanolamine level transmitter
Vent gas scrubber level control
Drip pot condense level control
Flash tank level transmitter
Options:
Pneumatic to current interface transducer for electronic control
Electric high and low limit switches
Sealed or flanged chambers
Direct or reverse acting output signal
Level ranges from 14 to 120 inches (356 to 3048mm)
