Faster is better - Available for shortest delivery times

The probes listed below are regularly stocked for quick delivery. If the probe you require is not indicated, consult the "Alternate probe diameter" column in the Tube Inspection Probe Catalog to find an alternate probe diameter.

Standard/Custom Probes (Made to Order)

Use the nomenclature and the chart below to configure your part number.

* Smaller-diameter probes have less sentitivity to external defects, because the probe core section is much smaller than the tube section. However, the sensitivity to internal defects is still very high.

** These probes have an overall diameter that is slightly larger than the part number reference.

MFL Probe Selection Based on Tube Size

High-Saturation MFL Probe (TFB Model) Selection Guide for Common Carbon Steel Tube Sizes

Warning: If your tubes are dirty, a smaller probe might be required for the inspection. Olympus is not responsible if you select a probe that is not compatible with your application. If you require assistance, please contact an Olympus representative.

Example: For a one-inch tube with a wall thickness of 2.41 mm, the required probe would be TFB-187-N20. This probe has an overall diameter of 19.4 mm and changeable hardened steel half-rings.

● This is the recommended probe size.

● This size can be used if you do not have the recommended size.