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MCG 8150B

Rigid Magnetostrictive Level Probe

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MCG 8150B

The MCG 8150B Rigid Magnetostrictive Level Probe is designed for terminal operators, refinery engineers, environmental compliance managers, and EPC instrumentation teams who require precise, continuous level and interface measurement in aboveground and underground storage tanks.

This probe delivers 0.001 inch resolution, dual-level detection, and integrated temperature averaging within a rigid 316 stainless steel housing engineered for long-term reliability.

The MCG 8150B provides drift-free measurement performance, meets EPA requirements for underground storage tanks (USTs), and delivers custody-grade data for petroleum, chemical, and industrial process applications.

MCG 8150B
MCG 8150B Rigid Magnetostrictive Level Probe
MCG 8150B

Key Features

Custody-Grade Resolution

Magnetostrictive measurement technology provides 0.001 inch resolution, delivering highly accurate inventory measurement and eliminating calibration drift common with mechanical systems.

Rigid 316 Stainless Steel Construction

The rigid probe tube is constructed from corrosion-resistant 316 stainless steel, ensuring durability in fuels, chemicals, and wastewater environments.

Dual-Level Measurement

Simultaneously measures product level and interface level such as oil and water separation, providing critical data for contamination detection and tank integrity monitoring.

Integrated Temperature Averaging

Five embedded RTD temperature sensors provide accurate average product temperature measurement, supporting API 2540 volume correction calculations.

Regulatory Compliance

The probe meets EPA requirements for underground storage tanks and is UL listed, simplifying environmental compliance and reducing regulatory risk.

Point-Switch Functionality

Supports both continuous level measurement and overfill or low-level protection, reducing the need for additional instrumentation.

Retrofit Versatility

Adapts easily to 2″, 3″, or 4″ riser openings, with optional flanged mounting for fast and cost-effective installation or system upgrades.

Applications

  • Custody Transfer Accuracy: Magnetostrictive precision of 0.001 inch ensures accurate inventory tracking and fair trade measurement, eliminating drift issues associated with mechanical float gauges.
  • Tank Contamination Detection: Dual float sensing detects BS&W (bottom sediment and water) levels, helping prevent contamination and protecting product quality.
  • Environmental Compliance: EPA-listed design supports regulatory compliance for underground storage tank operators.
  • Temperature Compensation: Five RTD sensors provide accurate average temperature data, correcting volume measurements affected by thermal stratification.
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Technical Specifications

Parameter

Specification

Measurement Technology

Magnetostrictive

Resolution

0.001 inch

Probe Material

316 Stainless Steel rigid tube

Available Lengths

2 ft (0.6 m) to 24 ft (7.2 m)

Temperature Measurement

Average of five internal RTDs

Temperature Accuracy

0.01 °F resolution, ±0.2 °F accuracy

Communication Protocol

L&J Tankway digital bus

Mounting Options

2″, 3″, or 4″ NPT openings or ANSI flange

Certifications

UL listed, EPA compliant for underground storage tanks

Power Supply

12 – 36 VDC (loop powered)
Support
2026 COST ESTIMATE

Support

If you have questions not covered here, please contact the Cognesense support team for assistance.

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How does the MCG 8150B ensure accuracy for custody transfer?

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The MCG 8150B uses magnetostrictive technology to deliver a resolution of 0.001inch, which is significantly more precise than typical mechanical or ultrasonic devices. This high resolution, combined with five internal RTDs for temperature-compensated volume correction, ensures the data is custody-transfer grade and auditable per API standards.

Is the probe approved for use in underground storage tanks (USTs)?

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Yes. The MCG 8150B is UL listed and EPA compliant for use in underground storage tanks. This certification is essential for meeting environmental monitoring and compliance requirements for fuel and hazardous liquid storage.

How does the dual-level measurement function?

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The probe utilizes two separate magnetic floats: one is weighted to float on the top surface of the primary product (e.g., gasoline) and one is weighted to float on the interface between the product and any denser liquid (e.g. water/ BS&W). The probe tracks the position of both floats simultaneously, providing continuous, separate readings for product level and interface level.

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Measure.
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Protect.