Configured for precision material testing in industrial maintenance, the GE Krautkramer 10BT MIC (often referenced as the MIC 10 series UCI Hardness Tester) provides direct physical measurement of material surface integrity using the Ultrasonic Contact Impedance (UCI) method.

Hardware Specifications

Eddy-Current Probe Scaling and Signal Processing

The 10BT MIC operates by measuring the frequency shift of a rod excited into ultrasonic resonance upon contact with the test material. Accurate hardness derivation requires consistent probe scaling and validation against reference standards. Cross-talk suppression within the internal circuitry ensures that signal noise from the 3-pin XLR probe interface does not interfere with the precision of the Vickers diamond indenter displacement measurement. Calibration parameters for standard steel alloys are pre-programmed; however, field users must ensure proper gap validation and surface preparation to maintain the integrity of the UCI measurement loop.

Frequently Asked Questions

Q: Does the 10BT MIC support hot-swapping of UCI probes?

A: No. Always power down the instrument before disconnecting or connecting a probe to the 3-pin XLR interface to prevent potential electrical damage to the probe excitation circuitry.

Q: What is the significance of the 600 ohm output impedance mentioned in some documentation?

A: The stated impedance refers to the signal output characteristics for data transfer via the interface port. This ensures compatibility with standard peripherals and data logging devices without signal distortion.

Field Installation Guidelines

• Surface Preparation: Ensure the test surface is clean, smooth, and free of coatings or oxidation. The UCI method requires intimate contact between the Vickers indenter and the base material for accurate results.
• Probe Positioning: Maintain perpendicular alignment of the probe to the surface. Use guiding devices or test supports to ensure steady probe guidance, especially when testing on curved or difficult-to-access geometries.
• Calibration: Perform a calibration check on a known hardness reference block before each shift. Adjust calibration parameters if the material being tested deviates significantly from standard non-alloyed steel.
• Grounding: While the device is battery-operated, ensure it is protected from high-static environments which could potentially discharge through the sensitive probe electronics.