Saab Marine TankRadar TGE 5110 Gauge Unit 9150075-751 Rev C

Saab Marine TankRadar TGE 5110 Tank Gauge Electronics Unit (9150075-751 Rev C)

The Saab Marine TankRadar TGE 5110 (Manufacturer Part Number: 9150075-751 Rev C) is a signal processing and transceiver interface printed circuit board assembly (PCBA) engineered for legacy Saab Marine TankRadar cargo level gauging systems. Installed directly inside the deck-mounted radar gauge housing, the TGE 5110 converts high-frequency microwave FMCW (Frequency Modulated Continuous Wave) radar echo signals into calibrated digital ullage, level, and temperature data for transmission to the vessel’s Cargo Control Room (CCR) workstation.

Model Details

• Manufacturer: Saab Marine Electronics AB (now Emerson / Rosemount Tank Radar AB)
• Product Series: TankRadar G3 / L/2 / M Series Legacy Architecture
• Unit Designation: TGE 5110 (Tank Gauge Electronics)
• Manufacturer Part Number (MPN): 9150075-751
• Hardware Revision: Rev C (Backward-compatible with Rev A and Rev B units in standard 2-wire/4-wire configurations)
• Board Architecture: Conformal-coated dual-sided SMT/through-hole hybrid assembly with integrated Harting/Phoenix terminal blocks and SMA/SMB RF coaxial interconnects.

Features

1. Direct Microwave Signal Processing: Executes Fast Fourier Transform (FFT) echo filtering directly at the tank deck head, separating true liquid surface reflections from internal tank structural interference (heating coils, ladders, and stiffeners).
2. Integrated Intrinsically Safe (IS) Barrier Interface: Features onboard Zener diode and optocoupler isolation stages designed to interface safely with Ex ia IIC T4 barrier networks without signal attenuation.
3. Multi-Sensor Telemetry Multiplexing: Simultaneously processes radar ullage data alongside auxiliary Pt100 RTD temperature inputs (up to 3 spot sensors) and Inert Gas (IG) vapor pressure transmitter signals via a single field bus drop.
4. Marine-Grade Conformal Coating: Full acrylic-urethane protective coating prevents dendritic growth, salt-fog corrosion, and moisture-induced tracking across high-impedance RF traces.
5. Non-Volatile Calibration Memory: Retains tank strapping offsets, antenna reference distances, and baud-rate addressing on onboard EEPROM during complete vessel blackout or main bus power cycling.

Compatible Equipment Models

• Radar Deck Units: Saab TankRadar PRO, TankRadar G3, and TankRadar Rex (RTG 3920 / RTG 3930 / RTG 3950 legacy conversions)
• Antenna Configurations: Parabolic Dish Antennas (400 mm / 500 mm), Cone/Horn Antennas (DN150 / DN200), and Still-Pipe Array Antennas
• Power & Communication Interfaces: Saab FCU (Field Connection Unit), TCU (Tank Control Unit), and DAU (Data Acquisition Unit) cabinets
• CCR Workstations: Saab TankRadar WinSetup diagnostic software and MaC (Marine Control) Cargo Monitoring Systems

Part Number Cross-References

• Primary MPN: 9150075-751
• Revision Variants: 9150075-751 REV A, 9150075-751 REV B, 9150075-751 REV C
• Assembly Kit Number: 9150075-701 (Complete Electronics Cassette including TGE 5110 and mounting chassis)
• Functional Replacement / Superseding Kit: 9150075-752 (Factory-programmed variant; verify firmware EPROM sticker prior to installation)

Applications

• Crude Oil Tankers (VLCC / Suezmax / Aframax): Continuous closed-loading ullage measurement and trim/list corrected volume calculation.
• Chemical & Product Carriers (IMO Type I, II, III): Non-contact level gauging of aggressive acids, solvents, and aromatics without wetted electronic components.
• LNG / LPG & Liquefied Gas Carriers: High-accuracy custody transfer level monitoring in pressurized and cryogenic cargo containment systems.
• FPSO & FSO Offshore Units: Slop tank, ballast tank, and crude storage monitoring under continuous offshore vibration (IEC 60068-2-6 compliant).
• Onshore Tank Farms & Marine Terminals: Legacy Saab TankRadar shore-tank gauging upgrades requiring direct PCB replacement.

Frequently Asked Questions

Is the Saab 9150075-751 Rev C backward-compatible with Rev A and Rev B TGE 5110 boards?

Yes. Revision C is fully backward-compatible in both form, fit, and electrical function with earlier Rev A and Rev B boards of the 9150075-751 assembly. When replacing an older revision, ensure that the rotary/DIP bus address switches on the new board match the original board’s settings and verify the EPROM firmware version if your vessel uses customized tank-strapping tables stored locally on the gauge head.

Does the TGE 5110 (9150075-751) require recalibration after installation?

In most standard Saab TankRadar G3 and PRO installations, tank geometry, reference height (ullage offset), and strapping tables are stored in the Cargo Control Room (CCR) workstation or Tank Control Unit (TCU). Once the TGE 5110 is installed with the correct bus address, the system automatically polls the radar transceiver. However, performing a manual ullage verification check (hand-dipping via a vapor lock valve) after installation is standard marine practice to confirm zero offset drift.

Can the 9150075-751 Rev C be installed in a Zone 0 / Zone 1 hazardous cargo deck area?

Yes, provided it is installed inside the original explosion-proof/intrinsically safe Saab cast-aluminum deck housing and powered through an approved Intrinsically Safe (IS) barrier unit in the safe area. Never open the deck housing cover or disconnect Terminal Block X1 while the circuit is energized in a gas-hazardous zone without a valid hot-work / gas-free certificate.