A DCS Q Co., Ltd. - PLC and DCS Industrial Control Equipment Wholesale
Advanced Differential Expansion Monitoring for Steam Turbine Applications
The Bently Nevada 330851-02-000-070-10-00-00 3300 XL 25 mm Proximity Probe is a heavy-duty eddy-current transducer designed for differential expansion, shaft position, and rotor growth measurements in large rotating machinery. It belongs to the 3300 XL 25 mm Transducer System, a platform specifically engineered for harsh steam turbine environments and high-temperature applications.
This configuration features an M30×2 threaded probe body, a 70 mm overall case length, a 1.0 m cable assembly, and a non-armored standard industrial version without agency approvals. The system is widely deployed in power generation, petrochemical processing, and other critical industrial facilities that require continuous machine protection and predictive maintenance capabilities.
Technical Specifications — Mechanical & Electrical Data
| Parameter | Details |
|---|---|
| Product Type | 3300 XL 25 mm Proximity Probe |
| Model Number | 330851-02-000-070-10-00-00 |
| 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 | 070 = 70 mm |
| Total Length | 10 = 1.0 m (3.3 ft) |
| Armor Option | 00 = No armor |
| Agency Approval | 00 = No approvals |
| Cable Type | 75 Ω triaxial FluidLoc® cable |
| Probe Housing Material | Stainless steel |
| Probe Tip Material | High-temperature PEEK engineering polymer |
| Linear Measurement Range | 12.7 mm (500 mils) |
| Continuous Operating Temperature | Up to 200°C |
| Intermittent Temperature Capability | Up to 250°C |
| Approximate Dimensions | 70 mm body length × 25 mm sensing diameter |
| Product Weight | Approximately 0.23 kg |
| Shipping Weight | Approximately 1.5 kg |
