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330702-00-25-10-02-00

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The Bently Nevada 330702-00-25-10-02-00 is an armored 11 mm eddy-current proximity probe designed for non-contact vibration and axial position monitoring in fluid-film bearing machines.
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Technical specifications for 330702-00-25-10-02-00

  • Manufacturer:
    Bently Nevada
  • Part Number:
    330702-00-25-10-02-00
  • Product Type:
    Proximity Probes
  • Stock:
    1
  • Thread Type:
    1/2-20 UNF
  • Unthreaded Length:
    0.0 in
  • Overall Case Length:
    2.5 in
  • Total Length:
    1.0 meter (3.3 feet)
  • Connector:
    Miniature coaxial ClickLoc connector
  • Cable-Type:
    standard cable
  • Agency Approval:
    AISI 304 Stainless Steel
  • Cable Type:
    75Ω triaxial, FEP insulated
  • Linear Range:
    4.0 mm (160 mils)
  • Incremental Scale Factor (ISF):
    3.94 V/mm (100 mV/mil) ±10%
  • Gap Recommendation:
    2.5 mm (100 mils)
  • Operating Temperature:
    -52°C to +177°C (-62°F to +351°F)
  • Storage Temperature:
    -52°C to +177°C
  • Minimum Bend Radius:
    25.4 mm (1.0 inch)
  • Weight:
    0.6 kg
  • Estimated shipping dimensions:
    30x25x3cm
  • Tariff Code:
    8537101190
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen, Fujian, China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Specifications Safety & Compliance Certifications & Standards Applications

Features:

  • Extended Linear Range for Critical Measurements
  • Full Armor & Extreme Temperature Durability
  • True Interchangeability – No Calibration Matching
The Bently Nevada 330702-00-25-10-02-00 offers a 4.0 mm linear range – 60% longer than standard 8 mm probes. This enables accurate axial thrust position and differential expansion monitoring on large steam turbines and compressors, where traditional probes would lose signal linearity.

With an AISI 304 stainless steel case and full armor, the Bently Nevada 330702-00-25-10-02-00 withstands mechanical abrasion, high vibration, and temperatures from -52°C to +177°C. The FluidLoc™ cable option (selectable) further prevents oil wicking, making it ideal for turbine bearing housings.

Unlike legacy systems, the Bently Nevada 330702-00-25-10-02-00 requires no individual probe-to-proximitor calibration. Any 3300 XL 11 mm component can be swapped directly, reducing spare parts inventory by over 70% and cutting repair downtime from hours to minutes.

The 330702-00-25-10-02-00 Bently Nevada 3300 XL 11 mm Proximity Probes may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Bently Nevada 330702-00-25-10-02-00 3300 XL 11 mm Proximity Probes Manuals,Datasheets,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.
Bently Nevada 330702-00-25-10-02-00 3300 XL 11 mm Proximity Probes

General

  • Manufacturer GE / Bently Nevada
  • Model 330702-00-25-10-02-00
  • Condition New Original ready stock
  • Product Family 330702-00-25-10-02-05,330702-00-25-10-02-CN,330702-00-25-10-02-BR
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.
  • Pressure Seal Integrity – The Viton O-ring seals differential pressure across the probe tip. Do not expose the probe below -34°C before installation; otherwise, the seal may crack prematurely.
  • Electrostatic Discharge (ESD) Precautions – Although the Proximitor sensor has internal ESD protection, proper grounding during handling is required to prevent damage to the connector and internal electronics.
  • Installation Drawing Mandate – For hazardous area use, install strictly per Bently Nevada drawings 141092 (intrinsic safety) or 140979 (non-incendive). Deviation invalidates approvals.
  • FluidLeak Responsibility – The customer is responsible for containing any process fluid leakage if the probe seal fails. Bently Nevada does not cover leakage damage under warranty or service plans.
  • ATEX & IECEx (Ex ia IIC T5…T1 Ga) – Certified for Zone 0 gas hazardous areas, allowing direct installation inside bearing housings without explosion-proof enclosures.
  • cNRTLus for North America – Approved for Class I, Division 1 & 2, Groups A–D (flammable gases) and Class II/III (combustible dusts) per NEC/CEC.
  • Functional Safety (SIL 2/3) – Capable of use in safety-instrumented systems (SIS) up to SIL 3 with hardware fault tolerance (HFT=1), compliant with IEC 61508/61511.
  • Environmental & Material Compliance – RoHS and China RoHS compliant (EFUP 15 years); tested to IEC 68-2-3 for damp heat and 100% condensing humidity.
  • Axial (Thrust) Position Monitoring – Provides ±2 mm linear measurement range for thrust bearing wear detection on gas and steam turbines, preventing catastrophic rotor-stator rub.
  • Differential Expansion (Ramp Measurement) – Essential for steam turbine startup/shutdown cycles; captures casing-to-rotor growth differences with 4.0 mm range.
  • Rod Drop / Rod Position Monitoring – Used in reciprocating compressors to detect valve or piston rod settling, enabling predictive maintenance before mechanical failure.
  • Keyphasor™ & Zero Speed Detection – Generates precise once-per-turn timing signals for phase analysis, balancing, and speed control in high-speed turbomachinery.
Description
The Bently Nevada 330702-00-25-10-02-00 is part of the industry-proven 3300 XL series, delivering superior linear measurement range compared to standard 8 mm systems. With a 4.0 mm linear range and 3.94 V/mm scale factor, it is specifically engineered for demanding applications such as axial thrust position, differential expansion, and rod drop monitoring on steam turbines and reciprocating compressors.

The Bently Nevada 330702-00-25-10-02-00 features a 1/2-20 UNF threaded AISI 304 stainless steel case with full armor, providing exceptional mechanical protection in harsh industrial environments. The probe operates reliably from -52°C to +177°C, and its patented TiLoc™ and CableLoc™ designs ensure robust mechanical bonding and >330 N pull strength. The gold-plated brass ClickLoc™ connector guarantees secure signal transmission even under high vibration.

The Bently Nevada 330702-00-25-10-02-00 is fully interchangeable with other 3300 XL 11 mm system components without requiring individual calibration or component matching. It integrates seamlessly with the 3300 XL 11 mm Proximitor™ Sensor and extension cables, supporting total system lengths up to 9 meters. This plug-and-replace capability significantly reduces maintenance downtime and inventory complexity.

Designed for global deployment, the Bently Nevada 330702-00-25-10-02-00 complies with ATEX, IECEx, cNRTLus, and SIL 2/3 functional safety requirements. It is RoHS and China RoHS compliant, and suitable for use in hazardous areas including Class I, Zone 0 environments when installed with approved barriers or isolators.

Alternative Names
3307020025100200 33O7O2-OO-25-1O-O2-OO 330702-00-25-I0-02-00 330702-00-25-10-02-05 330702-00-25-10-02-CN 330702-00-25-10-02-BR 330702-00-25-10-02-RU
Technical notes
The Bently Nevada 330702-00-25-10-02-00 requires a matched 3300 XL 11 mm Proximitor Sensor and extension cable for full system accuracy; do not mix with 7200 series components. Pre-installation temperature conditioning above -34°C is mandatory to avoid pressure seal damage.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Does the Bently Nevada 330702-00-25-10-02-00 require firmware or software configuration when connected to a 3500 monitoring system?
No. The Bently Nevada 330702-00-25-10-02-00 is a passive analog sensor. Compatibility is determined by the Proximitor sensor (e.g., 330780) and the 3500 rack configuration software. Ensure your 3500 software version lists “3300 XL 11 mm” as a valid transducer option.
What is the maximum field wiring length between the Proximitor and the monitor when using the Bently Nevada 330702-00-25-10-02-00?
Up to 305 meters (1,000 feet) of three-conductor shielded triad cable is supported. However, frequency response above 8 kHz will experience roll-off. Use 0.25–0.75 mm² (18–23 AWG) wires with ferrules for optimal signal integrity.
Can the Bently Nevada 330702-00-25-10-02-00 be used with third-party extension cables or Proximitors?
Not recommended. The Bently Nevada 330702-00-25-10-02-00 requires genuine 3300 XL 11 mm extension cables (e.g., 330730 series) and 3300 XL 11 mm Proximitor sensors to maintain specified linearity, scale factor, and RFI immunity. Third-party cables alter capacitance and degrade performance.
What are the minimum shaft and target size requirements for the Bently Nevada 330702-00-25-10-02-00?
For flat targets, minimum diameter is 30.5 mm (1.2 in). For rotating shafts, recommended minimum diameter is 152 mm (6.0 in). Below these limits, electromagnetic cross-talk between adjacent probes increases; maintain tip separation >64 mm for axial and >58 mm for radial measurements.
How do I correctly torque the Bently Nevada 330702-00-25-10-02-00 during installation?
Use 15.2 N·m (133 in·lb) recommended torque for 1/2-20 UNF threads. Never exceed 45.2 N·m (400 in·lb). Over-torquing voids warranty and may damage the internal seal. Connector torque: finger tight only (max 0.565 N·m).

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