Product Highlights
The Bently Nevada 330876-02-50-01-00 3300 XL 50 mm Proximity Probe is a high-precision eddy current probe designed for the 3300 XL 50 mm Proximity Transducer System. Engineered for the most demanding rotating machinery applications, it delivers accurate non-contact measurements of shaft displacement, differential expansion, and rotor position in large steam turbine generators and other critical equipment.
This model features an M14 × 1.5 threaded probe case, a 5.0-meter total probe length, and an Armored High Temperature FluidLoc® cable, providing superior mechanical protection and reliable performance in harsh industrial environments. Designed to withstand continuous high-temperature operation, the probe helps maintain stable measurement accuracy while supporting long-term machinery protection programs.
Technical Specifications
| Item | Description |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 330876-02-50-01-00 |
| Product Type | 3300 XL 50 mm Proximity Probe |
| Product Series | 3300 XL 50 mm Proximity Transducer System |
| Probe Case Type | M14 × 1.5 Thread |
| Total Probe Length | 5.0 m (16.4 ft) |
| Cable Configuration | Armored High Temperature FluidLoc® Cable |
| Measurement Principle | Non-contact Eddy Current |
| Linear Measurement Range | 27.9 mm (1100 mils) |
| Average Scale Factor | 394 mV/mm (10 mV/mil) |
| Continuous Probe Temperature | Up to +200°C |
| Intermittent Temperature | Up to +250°C |
| Agency Approval | 00 – No Approvals |
| Approximate Dimensions | 220 × 220 × 65 mm (packaged) |
| Approximate Weight | Approx. 0.75 kg |
Typical Applications
The 330876-02-50-01-00 proximity probe is specifically developed for machinery protection systems that require extended measurement range and exceptional reliability.
Typical applications include:
-
Steam turbine differential expansion measurement
-
Rotor axial position monitoring
-
Large turbine-generator protection
-
Gas turbine condition monitoring
-
Turbine Supervisory Instrumentation (TSI) systems
-
Shaft displacement measurement
-
Industrial generator monitoring
-
Petrochemical processing facilities
-
Power generation plants
-
Critical rotating machinery diagnostics
Key Benefits
Designed to perform in the toughest industrial environments, the 330876-02-50-01-00 offers dependable operation and long-term reliability.
Key advantages include:
-
Long 27.9 mm linear measurement range for large machinery applications
-
Armored High Temperature FluidLoc® cable provides enhanced mechanical protection
-
Excellent resistance to moisture, vibration, and industrial contaminants
-
Continuous operation in temperatures up to +200°C
-
Stable signal output for accurate displacement and vibration measurements
-
Durable probe construction for extended service life
-
Compatible with the complete 3300 XL 50 mm Proximity Transducer System
-
Suitable for upgrading legacy 7200 Series 50 mm systems
-
Simplifies maintenance while improving equipment availability
-
Trusted solution for critical machinery protection and condition monitoring.
Technical FAQs
1. What is the primary function of the 330876-02-50-01-00 probe?
It provides precise non-contact measurement of shaft displacement, differential expansion, and rotor position in large rotating machinery.
2. Which transducer system is this probe designed for?
It is designed exclusively for the Bently Nevada 3300 XL 50 mm Proximity Transducer System.
3. What does the "02" configuration indicate?
The "02" option specifies an M14 × 1.5 threaded probe case.
4. What does the "50" option represent?
It designates a 5.0-meter (16.4-foot) total probe length.
5. What does the "01" cable option mean?
It identifies the Armored High Temperature FluidLoc® cable, providing additional protection against mechanical damage.
6. What is the measurement range of this probe?
The probe offers a linear measurement range of 27.9 mm (1100 mils).
7. What temperatures can the probe withstand?
The probe supports continuous operation up to +200°C and intermittent exposure up to +250°C.
8. Is this probe suitable for turbine supervisory systems?
Yes. It is widely used in Turbine Supervisory Instrumentation (TSI) systems for differential expansion and rotor position measurements.
9. Can this probe replace older 7200 Series 50 mm probes?
Yes. When installed with the matching 3300 XL extension cable and Proximitor sensor, it is designed to replace compatible legacy 7200 Series 50 mm systems.
10. Why is an armored cable beneficial?
The armored construction improves resistance to abrasion, impact, and harsh installation conditions, helping extend service life and reduce maintenance.
A DCS Q Co., Ltd. - PLC and DCS Industrial Control Equipment Wholesale
