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330851-02-010-140-10-00-05

3300 XL 25 mm Proximity Probe

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Technical specifications for 330851-02-010-140-10-00-05

  • Product Model
    330851-02-010-140-10-00-05
  • Product Parameters
    3300 XL 25 mm Proximity Probe
  • Tariff Code
    8537101190
  • Country of origin
    USA
  • Place of shipment
    Xiamen, China
  • Estimated Shipping Size
    2.8x2.8x115cm
  • Manufacturer
    Bently Nevada
  • Weight
    0.34 kg
  • Probe Case Type Option
    M30x2 thread
  • Unthreaded Length Option
    10 mm
  • Overall Case Length Option
    140 mm
  • Total Length Option
    1.0 metre (3.3 feet)
  • Armor Option
    No Armor
  • Agency Approval Option
    Multiple Approvals

Description

02 M30x2 thread
MinimumUnthreadedLength 10 mm
MinimumUnthreadedLength 140 mm
10 1.0 metre (3.3 feet)
00 No Armor
05 Multiple Approvals

Information

Overview Manuals Technical notes Product Applications Mechanical Installation & Target Constraints

Features:

  • Extended Linear Range for Differential Expansion
  • High Temperature Survivability
  • Dual Seal & FluidLoc Cable Design
  • High-Temperature ClickLoc Connectors
  • Removable Collar for Easy Cable Routing
The 3300 XL 25 mm Transducer System consists of a separate25 mm probe, an extension cable, and a 3300 XL 25 mmProximitor Sensor. The 0.787 V/mm (20 mV/mil) output givesthis system a linear range of 12.7 mm (500 mils).  Based onthis linear range, the 3300 XL 25 mm Transducer System issuitable for measuring differential expansion (DE) on midsize to large steam turbine generators caused by thedifference in growth rates between the turbine rotor and themachine stator (casing).

The criteria for selecting a mounting method are the size ofthe available target, the expected amount of rotor axialmovement and the type of DE target that exists in themachine (collar versus ramp).  If sufficient collar height isavailable, two transducers observing the same side of a3300 XL Proximity Transducer SystemDatasheet163236 Rev. Mcollar is the preferred configuration.  These twotransducers provide redundant measurements.

The 330851-02-010-140-10-00-05 Bently Nevada 3300 XL 25 mm Proximity Probe may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 330851-02-010-140-10-00-05 3300 XL 25 mm Proximity Probe Manuals, Datasheets, Drivers, Link Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
The 3300XL 25 mm Proximity Transducer System consists of a separate 25 mm probe, an extension cable, and a 3300XL 25 mm Proximitor Sensor. The 0.787 V/mm (20 mV/mil) output gives this system a linear range of 12.7 mm (500 mils), making it suitable for measuring differential expansion (DE) on midsize to large steam turbine generators caused by the difference in growth rates between the turbine rotor and the machine stator. The system can be configured with two transducers observing the same side of a collar, two complementary input transducers observing opposite sides of a collar (effectively doubling the measurable DE distance), or two transducers with at least one viewing a ramp to compensate for radial movement and measure a longer total DE distance. 
  • Steam Turbines:Rotor dynamics, thermal growth & shaft displacement
  • Gas Turbines:High-speed rotor vibration & casing resonance
  • Hydroelectric Turbines:Slow-speed runout, alignment & bearing wear
  • Centrifugal Compressors:Detects surge, stall & aerodynamic instability
  • Axial Compressors:High-velocity displacement prevents rotor-stator rub
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Target material must be AISI 4140 steel to maintain system calibration and accuracy.Target size must be at least 61 mm (2.4 in) in diameter or larger for a flat target surface.Maintain a side clearance of at least 76 mm (3.0 in) from any structural metal to prevent side-viewing interference.Maintain a minimum separation of 200 mm (7.9 in) between probe tips if using multiple 25 mm sensors to prevent cross-talk.Torque the M30 case locknuts to a maximum of 76 N·m (56 ft·lb) during final locking

FAQs

  • What is the 330851-02-010-140-10-00-05 ?+
    The Bently Nevada 330851 is a specialized 3300 XL 25 mm Proximity Probe designed primarily to measure differential expansion in mid-to-large steam turbine generators
  • What is the probe mainly used for?+
    It is mainly utilized in the oil, gas, and power generation industries to monitor differential expansion—the difference in growth rates between the turbine rotor and the machine stator.
  • What type of measurement does this probe provide?+
    It utilizes eddy-current technology to gauge static position (such as axial displacement) and dynamic motion (radial vibration) between the probe tip and a conductive target.
  • What is its linear range?+
    The 25 mm transducer system offers an extensive linear measuring range of 12.7 mm (500 mils) with a nominal scale factor sensitivity of 0.787 V/mm (20 mV/mil).
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