Bently Nevada 330904-00-12-05-02-00 3300 NSv Proximity Probe

Description

Option 00 (0 mm unthreaded) and Option 12 (120 mm overall case length) specify this 3300 NSv metric proximity probe configuration — 330904-00-12-05-02-00.

This transducer system component operates using non-contact eddy-current technology to measure shaft vibration and axial position on high-speed machinery with restricted target geometries. The model includes stainless steel armor to protect the 75 ohm coaxial lead against mechanical damage in demanding environments. It is mechanically and electrically compatible with Bently Nevada 3300 RAM systems, facilitating direct upgrades using the existing wiring paths.

Features

• Metric M8x1 threaded case with integrated flexible stainless steel armor (SST) for mechanical protection
• Average Scale Factor (ASF) of 7.87 V/mm (200 mV/mil) for compatible 3300 XL NSv Proximitor sensors
• ClickLoc miniature coaxial connector with gold plating to prevent loosening and signal disruption
• TipLoc molding process establishing a high-strength chemical and mechanical bond between the PPS tip and SST case
• CableLoc design delivering 220 N (50 lb) of pull strength between the probe cable and tip assembly
• Operating temperature capability extending from -52 degC to +177 degC for wide thermal range reliability

Applications

• Centrifugal, process gas, and refrigeration compressor shaft vibration monitoring
• Aeroderivative gas turbine radial displacement and axial (thrust) position tracking
• High-speed machinery with flat targets smaller than 15 mm (0.6 in) or shafts smaller than 51 mm (2 in)
• Tight clearance installations where counterbore or side-view boundaries restrict standard 5 mm or 8 mm transducers

Ordering Information

Technical Specifications

Installation Guidelines

Ensure the following practices are followed during installation of the proximity probe:

• Thread Engagement: For M8x1 metric threads, the maximum length of thread engagement must not exceed 12 mm to prevent binding or casing damage.
• Torque Limits: Tighten the M8x1 probe case to the recommended mounting torque of 5.1 N m (45 in lb). Do not exceed the maximum rated limit of 7.3 N m (65 in lb).
• Minimum Bend Radius: Maintain a minimum cable bend radius of 25.4 mm (1.0 in) during routing to prevent internal coaxial conductor damage.
• Cable Protection: Secure the armored cable inside the machine casing to prevent whipping or friction wear against rotating parts.
• Connector Protection: Use silicone self-fusing tape or connector protectors at the probe-to-extension-cable connection to prevent liquid ingress, except inside casings exposed to turbine oil where tape is not recommended.

Compliance and Certifications

The 3300 XL NSv Transducer System complies with key international standards when paired with qualified system components (Option 00 specifies standard approvals where specific hazardous area certificates are not applied directly to this SKU):

• CE Mark: Compliant with European EMC standards for electromagnetic and radio frequency interference (RFI) immunity.
• RoHS: Compliant with European restrictions on hazardous substances.