Fisher 249 Series Cageless Sensors

Fisher 249 Series Cageless Sensors

Fisher™ 249 cageless sensors are generally used on applications requiring large displacers that are accommodated by large flange connections. Different displacer stem lengths permit lowering the displacer to the desired depth. These sensors are designed to measure changes in liquid level, liquid interface level, or density/specific gravity inside a process vessel using Archimedes’ Principle.

Any questions?

Jörgen Sundin
Solution Seller
Phone. +46 54-57 92 12

Niklas Pettersson
Account Manager
Phone. +46 54-57 92 09

Klaus Bergmann
Area Account Manager East & West
Phone. +45 2112 3345

Peder Hvidberg
Area Account Manager West
Phone. +45 2178 5053

Pekka Immonen
Key Account Manager
Mob. +358 45 168 8355

Taneli Luhanko
Inside Sales Engineer
Phone. +358 207 416 202
Mob. +358 40 757 4208

Certifications PED for 249W type only
Diagnostics No
Mounting Type Process Vessel Mounted
Operating Temperature Low Temperature, Standard Temperature, High Temperature
Position Control Monitoring
Process Control Level
  • Displacer reaction to small specific gravity changes allows these instruments to be used for density applications and in other applications where a response to low levels of input signal change is required.
  • Few moving parts are used. A knife-edged driver bearing in the sensor helps to provide low-friction operation. Sensors are available in ratings up to CL2500.
  • The torque tube can be replaced without removing the torque tube arm.

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