A DCS Q Co., Ltd. - PLC and DCS Industrial Control Equipment Wholesale
Introduction — High-Temperature Differential Expansion Monitoring for Large Rotating Machinery
The Bently Nevada 330851-02-000-050-50-00-05 3300 XL 25 mm Proximity Probe is a heavy-duty non-contact eddy-current sensor designed for critical machinery protection and differential expansion measurements in large rotating equipment.
Part of the 3300 XL 25 mm Transducer System, this probe is specifically engineered for harsh steam turbine environments where extreme temperatures, long operating cycles, and precise shaft movement measurements are required. The system provides a 12.7 mm (500 mil) linear measurement range, making it ideal for differential expansion applications on medium and large steam turbine generators.
Its robust construction incorporates FluidLoc® cable technology, high-temperature ClickLoc® connectors, and stainless-steel housing, ensuring long-term reliability in demanding industrial installations.
Technical Specifications — Mechanical & Electrical Data
| Parameter | Details |
|---|---|
| Product Type | 3300 XL 25 mm Proximity Probe |
| Model Number | 330851-02-000-050-50-00-05 |
| Measurement Technology | Eddy-current non-contact sensing |
| Probe Diameter | 25 mm |
| Probe Case Type | 02 = M30 × 2 metric threaded case |
| Unthreaded Length | 000 = 0 mm |
| Overall Case Length | 050 = 50 mm |
| Total Cable Length | 50 = 5.0 m (16.4 ft) |
| Armor Option | 00 = No armor |
| Agency Approval | 05 = Multiple approvals |
| Cable Type | 75 Ω triaxial FluidLoc® cable |
| Probe Tip Material | Polyetheretherketone (PEEK) |
| Probe Housing Material | AISI 304 stainless steel |
| Linear Measurement Range | 12.7 mm (500 mils) |
| Operating Temperature | -35°C to +200°C continuous |
| Intermittent Temperature Capability | Up to +250°C (limited duration) |
| Approximate Product Weight | 0.23 kg |
| Approximate Shipping Weight | 1.3 kg |
