330851-02-000-060-50-00-CN Bently Nevada

Bently Nevada 330851-02-000-060-50-00-CN 3300 XL 25 mm Proximity Probe

Bently Nevada 330851-02-000-060-50-00-CN 3300 XL 25 mm Proximity Probe

Availability: 10 left in stock

The Bently Nevada 330851-02-000-060-50-00-CN, also cataloged as the 330851 Proximity Probe, operates as a dedicated hardware component for non-contact shaft...

SKU: 330851-02-000-060-50-00-CN

Manufacturer: Bently Nevada
Product No.: 330851-02-000-060-50-00-CN
Product Type: Proximity Sensors
Product Origin: USA
Payment:T/T, Western Union
Weight: 2000g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

The Bently Nevada 330851-02-000-060-50-00-CN, also cataloged as the 330851 Proximity Probe, operates as a dedicated hardware component for non-contact shaft displacement and vibration measurement within 3500 Machinery Protection System networks. It utilizes an eddy-current tip sensing element to translate physical distance variations relative to a conductive target surface into calibrated dynamic AC dynamic vibration and DC gap voltage signals sent to matching 3300 XL Proximitor sensors.

Hardware Specifications

Parameter	Specification
Model	330851-02-000-060-50-00-CN
Brand	Bently Nevada
Origin	United States
Weight	Shipping Weight: 2.0 kg
Dimensions	M30x2 thread, 60 mm overall case length, 5.0 m total cable length
Operating Temp	-51 deg C to +177 deg C
Power Consumption	Passive physical media (0 W)
Probe Tip Diameter	25 mm
Mounting Thread	M30x2 metric thread
Cable Type	Integrated 5.0 m coaxial lead with ClickLock miniature coaxial connector

Eddy-Current Probe Scaling and Rotor Dynamics Tracking

The 330851 25 mm proximity probe relies on precise eddy-current probe scaling to generate proportional electrical outputs across wide mechanical measuring ranges. The large 25 mm tip diameter allows for expanded linear displacement tracking, making it suitable for differential expansion and high-amplitude axial thrust monitoring on heavy machinery shafts.

During field commissioning, gap voltage validation requires verifying the probe baseline reading against a nominal -10 VDC target at the Proximitor sensor output terminals when the shaft is centered at mechanical equilibrium. Maintaining correct probe mechanical alignment and rigid installation minimizes signal distortion during severe rotor dynamics events while ensuring optimal cross-talk suppression between orthogonal probe channels mounted in close physical proximity.

Frequently Asked Questions

Q: Can the integrated 5.0 m cable of the 330851 probe be trimmed or shortened in the field?

A: No. Altering the physical cable length modifies the total electrical capacitance and inductance of the circuit, which destroys the factory calibration, disrupts eddy-current probe scaling, and creates significant scale factor errors during gap voltage validation.

Q: How does the ClickLock miniature coaxial connector maintain signal integrity under machinery vibration?

A: The ClickLock connector features a mechanical locking sleeve that prevents connection loosening under continuous mechanical shock. When paired with a connector protector boot, it isolates the electrical contacts from environmental oil and moisture ingress.

Field Installation Guidelines

Inspect the 25 mm probe tip, M30x2 thread housing, and miniature coaxial connector for dirt, physical burrs, or lead insulation damage prior to installation.
Thread the probe into its rigid mounting bracket or machine casing, ensuring clean thread engagement, and tighten the locknut to the specified mechanical torque.
Route the 5.0 m integral coaxial cable through grounded metallic conduit or cable trays, maintaining a minimum static bend radius of 25.4 mm (1.0 in).
Maintain a minimum separation distance of 300 mm between the probe cable and high-voltage AC power wiring or variable frequency drive (VFD) output cables to prevent inductive noise pickup.
Connect the miniature coaxial ClickLock lead to the Proximitor extension cable until seated firmly, and pull the rubber connector protector boot over the joined mating junction.
Perform gap voltage validation at the Proximitor output terminals using a digital multimeter; adjust probe insertion depth until the DC voltage matches the system reference target (typically -10 VDC).
Connect the signal cable shield exclusively to instrument earth ground at the monitoring rack end. Leave the shield ungrounded at the probe junction box to prevent ground loop currents.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.