Dual chamber systems are often ideal for magnetic level gauges. The compact design eliminates the need for coaxial probes. Dual chamber systems also allow for multiple redundant technologies, including guided wave radars, capacitance level transmitters, and tuning fork level switches.Advantages of Dual Chambers
- Cuts out need for coaxial probes
- A single probe can be easily removed from the chamber for maintenance and cleaning
- Putting a Guided Wave Radar and a float in a single chamber requires larger pipe and flange sizes and a baffled plate between the float and the GWR coaxial probe
Disadvantages of a Single Chamber System
- A magnetic field orientation not optimal for instrument installation
- Radar interference due to the baffled plate
- Float obstruction due to an extra wall in the chamber
- Mandatory use of coaxial probe shields which are susceptible to blockage and fouling leading to
- incorrect measurements
- Increased cost and weight of the system
- Remote mounting of GWR electronics when top connections to the system are necessary
