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        Bently Nevada 330851-02-000-060-10-01-05
        Bently Nevada 330851-02-000-060-10-01-05
        Bently Nevada 330851-02-000-060-10-01-05
        Bently Nevada 330851-02-000-060-10-01-05
        Bently Nevada 330851-02-000-060-10-01-05
        Bently Nevada 330851-02-000-060-10-01-05
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        330851-02-000-060-10-01-05

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        The 330851-02-000-060-10-01-05 is a Bently Nevada 3300 XL 25 mm proximity probe with M30×2 thread, 12.7 mm linear range (20 mV/mil), 200°C continuous operation, and FluidLoc® cable.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
        Shipping Mode
        Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.Various transportation options are available in each country. Shipping methods and fees are clearly indicated on all quotations.
        Parts Availability
        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
        How to order
        We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.

        Technical specifications for 330851-02-000-060-10-01-05

        • Manufacturer:
          Bently Nevada
        • Part Number:
          330851-02-000-060-10-01-05
        • Product Family:
          3300 XL 25mm Proximity Transducer System
        • Product Type:
          Proximity Probe
        • Probe Case Type:
          M30×2 Thread
        • Unthreaded Length:
          0 mm
        • Overall Case Length:
          601 mm (information may be inconsistent; actual length is 1.0 meter total)
        • Total Length (probe + extension):
          1.0 metre (3.3 feet)
        • Armor:
          Stainless Steel (SST) Armor
        • Agency Approval:
          Multiple Approvals
        • Linear Range:
          12.7 mm (500 mils)
        • Continuous Operating Temperature:
          Up to 200°C (392°F)
        • Intermittent High Temperature:
          Up to 250°C (482°F)
        • Weight:
          0.42 kg
        • Estimated shipping dimensions:
          5x5x5cm
        • Tariff Code:
          8479899990
        • 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 Applications Operating Environment Monitoring and Control

        Features:

        • 12.7 mm (500 mils) linear range with 0.787 V/mm (20 mV/mil) output; specifically designed for measuring rotor‑to‑stator differential expansion on steam turbines.
        • Continuous operation at 200°C (392°F), intermittent up to 250°C (482°F); front/rear seals + FluidLoc® cable prevent moisture ingress.
        • Removable collar on ClickLoc™ connector for tight clearance routing; SST armor; connector protectors and installation tool included; multiple agency approvals.
        The 330851-02-000-060-10-01-05 is specifically engineered for differential expansion (DE) measurement on steam turbines. Unlike standard 8 mm proximity probes that have a linear range of only 2 mm (80 mils), this 25 mm probe provides a linear range of 12.7 mm (500 mils) with a sensitivity of 0.787 V/mm (20 mV/mil). During turbine startup, the rotor heats up and expands faster than the heavier stator (casing). Without accurate DE monitoring, the rotor blades could contact the casing, causing catastrophic damage. The large linear range of the 330851-02-000-060-10-01-05 allows it to track the full expected DE movement without going out of range.

        The 330851-02-000-060-10-01-05 is built to survive the harsh environment inside a steam turbine casing. It operates continuously at temperatures up to 200°C (392°F) and can withstand intermittent excursions up to 250°C (482°F). By comparison, standard 3300 XL 8 mm probes are typically limited to 120°C (248°F). The probe also features both front and rear seals to prevent steam or condensation from entering the probe tip. The FluidLoc® cable is standard on all 25 mm probes – this special cable design blocks wicking of moisture along the cable strands. High‑temperature ClickLoc™ connectors ensure reliable electrical connections even under thermal cycling. For turbine DE applications where the probe must be mounted directly in the hot casing, the 330851-02-000-060-10-01-05 provides the necessary thermal robustness.

        The 330851-02-000-060-10-01-05 includes several features that simplify installation in tight turbine casings. The removable collar on the ClickLoc™ connector is unique to the 25 mm probe. During installation, the collar can be removed, allowing the connector to be temporarily disassembled. The cable can then be routed through a small opening (e.g., a conduit fitting or a tight port in the turbine casing) that would not accommodate the full connector diameter. Once the cable is in place, the collar is reinstalled and the connector is reassembled. The probe is supplied with connector protectors and a disposable installation tool to keep the connectors clean during routing. The probe body has SST (stainless steel) armor for mechanical protection. The M30×2 thread is a large metric thread commonly used on turbine casings.

        The 330851-02-000-060-10-01-05 Bently Nevada Proximity Probe may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL)by the manufacturer (OEM).

        Bently Nevada 330851-02-000-060-10-01-05 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.
        Bently Nevada 330851-02-000-060-10-01-05 Proximity Probe Specs

        General

        • Manufacturer GE /Bently Nevada
        • Model 330851-02-000-060-10-01-05
        • Condition New Original ready stock
        • Product Family 330851-05-000-060-10-01-05,330851-06-000-060-10-01-05
        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.
        • Small Machinery Monitoring: Suitable for small steam turbines, centrifugal compressors, pumps, and fans with shaft diameters less than 50 mm (2 inches).
        • Narrow Space Measurement: The NSv series is the preferred choice when standard 8mm probes cannot be used due to small target surfaces (e.g., narrow shoulders, narrow gears) or narrow mounting hole clearances.
        • Specific Functions: Commonly used for radial vibration, axial displacement, and as a speed/keyphasor sensor, especially when the target is a small gear or keyway.
        • Temperature Tolerance: The probe and cable typically operate at temperatures from -52°C to +177°C.
        • Fluid Resistance: Excellent chemical resistance, resistant to most common lubricants, solvents, and industrial chemicals. The probe tip is encapsulated in PPS material and equipped with an O-ring to withstand differential pressure.
        • Hazardous Area Certification (05): Option "05" indicates that this model has multiple international explosion-proof certifications (such as CSA, ATEX, IECEx), suitable for explosive environments in oil, gas, and chemical plants.
        • Signal Characteristics: Its output is a negative DC voltage signal. For the NSv system, the standard sensitivity is typically 7.87 V/mm (200 mV/mil), but its linear range is shorter than that of the 8mm system (approximately 1.5mm).
        • System Integration: Data is typically transmitted to a Bently Nevada 3500 monitoring frame or an Orbit 60 system.
        • Automation Protection: Through the relay logic of the monitoring system, when excessive axial vibration or excessive axial displacement is detected, the PLC/DCS can be directly triggered to execute an emergency stop (ESD).
        Description
        The 330851-02-000-060-10-01-05 is a 25 mm proximity probe for Bently Nevada's 3300 XL Transducer System. It is designed for differential expansion (DE) measurement on mid‑size to large steam turbine generators. The probe has a linear range of 12.7 mm (500 mils) with a sensitivity of 0.787 V/mm (20 mV/mil).

        When using the 330851-02-000-060-10-01-05, engineers can monitor the difference in growth rates between the turbine rotor and stator. The probe operates continuously up to 200°C (392°F) and withstands intermittent temperatures up to 250°C (482°F). Total length is 1.0 metre (3.3 feet). 

        The 330851-02-000-060-10-01-05 is equipped with high‑temperature ClickLoc™ connectors and connector protectors. A disposable installation tool ensures connectors remain contamination‑free. 

        For harsh steam turbine DE environments, the 330851-02-000-060-10-01-05 is designed for maximum survivability. The probe is part of a system that includes a separate 25 mm probe, extension cable, and 3300 XL 25 mm Proximitor® Sensor. 
        Alternative Names
        330851-02-000-060-10-01-00 330851-02-000-060-10-01-CN 330851-02-000-060-10-01-BR 330851-02-000-060-10-01-UR 33085102000060100105 33O851-O2-OOO-O6O-1O-O1-O5 33085I-02-000-060-I0-0I-05 33O851O2OOOO6O1OO1O5
        Technical notes
        The 330851-02-000-060-10-01-05 has a sensitivity of 0.787 V/mm (20 mV/mil) and a linear range of 12.7 mm (500 mils). This is significantly larger than the 2 mm linear range of standard 8 mm probes, making it specifically suited for differential expansion measurements where large gap changes occur.
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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.
        VIEW ALL FAQS
        How does 330851-02-000-060-10-01-05 measure differential expansion?
        The 330851-02-000-060-10-01-05 measures the difference in growth between turbine rotor and stator with a 12.7 mm linear range (20 mV/mil). This allows operators to monitor DE and avoid blade‑to‑casing contact during startup and load changes.
        What temperature can 330851-02-000-060-10-01-05 withstand?
        The 330851-02-000-060-10-01-05 operates continuously at 200°C (392°F) and intermittently up to 250°C (482°F). It is designed for steam turbine DE applications where high temperatures would damage standard probes.
        How does 330851-02-000-060-10-01-05 prevent moisture damage?
        The 330851-02-000-060-10-01-05 has front and rear seals plus a standard FluidLoc® cable that prevents moisture from entering the probe tip. This ensures reliable operation in wet steam turbine environments.
        Does 330851-02-000-060-10-01-05 have features for tight installations?
        Yes. The 330851-02-000-060-10-01-05 has a removable collar on the ClickLoc™ connector that allows the probe lead to be routed through tight clearances before the collar is reinstalled. Connector protectors and installation tool are included.

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