Maximizing Level Measurement Reliability with PLT Magnetostrictive Level Chambers

When it comes to liquid level measurement in demanding industrial environments, magnetic level indicators (MLIs) stand out for their safety, reliability and flexibility. Process Level Technology (PLT) offers a best-in-class solution with its Mag-Gage® line engineered to outperform in high-pressure, high-temperature and corrosive applications.

Dual vs. Single Chamber Designs

PLT offers both dual and single chamber designs that can incorporate a float, guided wave radar (GWR) or free space radar, while physically isolating the technologies.

Many competitors promote all-in-one chambers to save space and reduce cost however the trade-offs can be significant and need to be considered based on application requirements.

Benefits of Dual Chamber Design:

• Dual chambers may allow for better performance, especially those with oversized guide rods.
• Isolation reduces interference and enhances radar signal accuracy, particularly in sticky or coating-prone services.
• Maintenance or calibration of one device doesn't require shutting down both instruments, improving uptime and safety.

Challenges of Single Chamber (All-in-One) Design:

Pros:

• Smaller footprint
• Less weight (not by much)
• Less cost (not by much)

Cons:

• Small tolerance between probe/baffle plate/chamber wall
• Isolating loses both instruments
• Can't use oversized guide rods
• Build up concerns in coating-prone applications

Why PLT for Level Measurement?

PLT's Mag-Gage system isn't just another MLI — it's an engineered platform that combines rugged reliability with smart instrumentation. PLT is the preferred choice for many industrial clients.

Unmatched Safety and Durability

• All Mag-Gages use a minimum of Schedule 40 pipe and full TIG welds (ASME B31.1/B31.3 compliant). No extruded tees leading to bowing of the chamber or catastrophic failures.
• Non-pressurized, crush-resistant floats prevent failure during overpressure events.
• Handles extreme conditions: pressures up to 5,000 PSI and temperatures up to 1,100 °F.

Flexible Integration

• Visual indication + 4–20 mA HART transmitter + magnetic point level switch, all through just two process connections.
• Supports upgrades without vessel penetrations, ideal for CSA/CRN compliance.

Operational Value

• Maintenance-free operation in most conditions.
• Wide-Flag® indicator visible from over 200 feet for easy viewing in large facilities.
• Customizable scales and quick-turn delivery options (2–4 weeks standard).

Proven Engineering and Local Support

• Designed by industry veterans with multiple patents in MLI technology.
• Supported by North American manufacturing and regional service from Intrepid Group.