The GE Sensing & Inspection USM 32XL is a high-performance, ruggedized portable ultrasonic flaw detector. Renowned for its reliability in demanding field conditions, the USM 32XL is specifically designed for weld inspection, corrosion measurement, and general non-destructive testing (NDT) in oil and gas, power generation, and aerospace industries. This version features BNC connectors for compatibility with a wide range of standard industrial transducers.

 

Product Specifications

Feature	Specification
Model	USM 32XL (BNC Version)
Connector Type	2 x BNC
Display	High-contrast, electroluminescent display
Pulse Repetition Frequency	Adjustable (15 Hz to 1000 Hz)
Gain	0 to 110 dB (adjustable in 0.5, 1, 2, 6 dB steps)
Battery Life	Up to 8 hours (NiMH)
Dimensions	212 mm x 176 mm x 50 mm (8.3″ x 6.9″ x 2.0″)
Weight	Approx. 1.3 kg (2.9 lbs) with battery
Origin	Germany (Krautkrämer / GE Sensing)

 

Application Areas

The USM 32XL is a workhorse for NDT professionals performing:

• Weld Inspection: Detecting inclusions, porosity, and cracks in piping and structural steel.
• Corrosion Assessment: Measuring wall thickness reduction in tanks, pressure vessels, and pipelines.
• Material Integrity Testing: Detecting internal voids or manufacturing defects in castings and forgings.
• Field Surveying: Excellent for remote site work due to its compact, handheld design and high visibility display.

 

Product Usage Instructions

1. Preparation: Connect your ultrasonic transducer to the BNC ports. Ensure you select the correct connector (Single or Dual probe mode) via the instrument menu.
2. Calibration: Perform a sound velocity and zero-offset calibration using a standard reference block (e.g., V1 or V2 block) to ensure measurement accuracy for your specific material.
3. Operation: Use the rotary knobs and direct-access function keys to adjust Gain, Range, and Gates. The screen will display the A-Scan signal, which shows the depth and amplitude of reflections within the material.
4. Data Management: Store inspection setups and results directly on the unit. Data can be transferred to a PC for reporting and archiving using the integrated communication interface.

 

Frequently Asked Questions (Q&A)

Q: Is the USM 32XL still the current model?

A: No, the USM 32XL is a legacy instrument. While it remains highly respected for its performance, newer units like the Krautkrämer USM 36 have succeeded it with improved screens, enhanced data storage, and digital connectivity.

Q: Can I use any BNC transducer with this unit?

A: Most standard ultrasonic contact transducers with BNC connectors are compatible. However, always verify that the transducer frequency and crystal diameter are appropriate for the material being tested.

Q: What should I do if the screen is hard to read in direct sunlight?

A: The USM 32XL utilizes a high-contrast display; however, if visibility is compromised, consider using a sunshade or adjusting the “Brightness/Contrast” settings in the display menu.

 

Recommended Inventory (Available Models)

1. USM 32XL (BNC Unit)
2. Krautkrämer USM 36 (Current Gen Replacement)
3. 2 MHz/4 MHz Standard Contact Transducers
4. V1 Calibration Reference Block
5. V2 Calibration Reference Block
6. BNC-to-BNC Transducer Cable
7. USM 32XL Battery Pack (Replacement)
8. Protective Rubber Boot/Holster
9. Ultrasonic Couplant (Gel)
10. Data Transfer/Communication Cable (PC Interface)