Description

The 330903-16-23-10-01-00 is a 3300 XL NSv proximity probe configured with M8x1 threading, an unthreaded length of 160 mm (Option 16), and a total case length of 230 mm (Option 23). This 3300 XL NSv Proximity Probe is designed for high-performance vibration and position monitoring in space-constrained installations where standard probes cannot be utilized. This specific configuration includes a 1.0 m total length (Option 10), a miniature coaxial ClickLoc connector with a connector protector (Option 01), and requires no agency approvals (Option 00). The 3300 XL NSv system is engineered for small-bore machinery, aeroderivative turbines, and high-speed equipment requiring precise measurement on targets with limited geometry. It provides accurate radial vibration and axial position data on shafts typically smaller than 51 mm (2 in). By leveraging non-contact eddy-current technology, this probe ensures reliable operation in fluid-filmed bearing applications. It functions as part of a complete transducer chain including the 330980 Proximitor Sensor and 330930 extension cable.

Features

• M8x1 probe thread (330903 series)
• 160 mm unthreaded length (Option 16)
• 230 mm overall case length (Option 23)
• 1.0 m total probe length (Option 10)
• Miniature coaxial ClickLoc connector with connector protector (Option 01)
• Standard cable type (Option 01)
• Not required agency approval (Option 00)
• Non-contact measurement for tight clearance, small-bore machine applications

Applications

• Radial vibration and radial position measurements on small-diameter shafts
• Axial (thrust) position measurements for flat targets
• Tachometer and zero speed measurements
• Phase reference (Keyphasor signals)
• Fluid-filmed bearing monitoring in compressors and turbines

Ordering Information

Option	Code on This SKU	Description
Orderable Part Number	330903-16-23-10-01-00	3300 XL NSv Proximity Probe, M8x1 thread
A - Unthreaded Length	16	160 mm
B - Case Length	23	230 mm
C - Total Length	10	1.0 meter (39 in)
D - Connector/Cable	01	Miniature coaxial ClickLoc connector with connector protector, standard cable
E - Agency Approval	00	Not required

Technical Specifications

Parameter	Specification
Manufacturer	Bently Nevada
Part Number	330903-16-23-10-01-00
Probe Type	3300 XL NSv Proximity Probe
Thread	M8x1
Case Material	AISI 304 stainless steel
Probe Tip Material	Polyphenylene sulfide (PPS)
Linear Range	1.5 mm (60 mils)
Recommended Gap Setting	1.0 mm (40 mils)
Cable Type	75 Ohm coaxial, FEP insulated
Connector	Miniature coaxial ClickLoc
Temperature Range	-55 degC to +177 degC (probe tip)

Installation Guidelines

• Ensure the probe is installed with the correct gap setting (recommended 1.0 mm) to maintain linear range.
• Use 3300 NSv extension cables (330930) and Proximitor Sensors (330980) compatible with the NSv system.
• Install connector protectors on the probe lead and extension cable connections to ensure environmental isolation.
• Follow Bently Nevada installation drawings for wiring and grounding practices to prevent signal interference.
• Verify thread compatibility (M8x1) during physical mounting.