
Nahfeldsonden erkennen sehr gut interne Korrosion, Erosion und Risse in Achsrichtung. Sie senden auf Amplitude basierende Signale von hoher Qualität zurück, die die Datenanalyse vereinfachen und verschnellern. Keine Referenzsonde oder Verlängerung ist nötig. Diese Sonden eignen sich besonders gut zum Prüfen von Rippenrohren aus Kohlenstoffstahl.
The probes listed below are regularly stocked for quick delivery. If the probe you need is not indicated, consult the "Alternate probe diameter" column in the diameter selection section to find an alternate probe diameter.
| Part ID | Item Number | Diameter | Center Frequency (Hz) | |
| mm | in. | |||
| TRD-160-300-N30 | U8280227 | 16 | 0.630 | 300 |
| TRD-170-300-N30 | U8280086 | 17 | 0.669 | 300 |
| TRD-180-300-N30 | U8280112 | 18 | 0.709 | 300 |
| TRD-240-300-N30 | U8280377 | 22 | 0.866 | 300 |
| TRD-280-300-N30 | U8280241 | 28 | 1.102 | 300 |
Use the nomenclature and the chart below to configure your part number.

| Probe Type |
Probe Diameter
(use mm in part ID) | Center Frequency | Cable Length | |
| mm | in. | |||
| TRD: Near field probe | Standard 11 mm to 31 mm by 1 mm Custom 32 mm to 100 mm ** by 1 mm | Standard 0.433 in. to 1.220 in. by 0.039 in. Custom 1.260 in. to 3.937 in. ** by 0.039 in. | 300 (Standard) |
20 m (65 ft)
30 m (100 ft) |
| ** Probes with a diameter greater than 31.0 mm (1.220 in.) have a lightweight design and probe body made of plastic and two stainless sleeves (see picture above). | ||||
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