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Bently Nevada 330905-07-17-05-02-05 3300 NSv Proximity Probe

The Bently Nevada 330905-07-17-05-02-05, also cataloged as the 330905 3300 NSv Proximity Probe, operates as a dedicated hardware component for eddy-current shaft displacement measurement within the 3300 XL NSv Transducer System.

Hardware Specifications

Parameter	Specification
Model	330905-07-17-05-02-05
Brand	Bently Nevada
Product Type	3300 NSv Proximity Probe
System Platform	3300 XL NSv Proximity Transducer System
Origin	USA
Dimensions	M10 x 1 thread; 70 mm unthreaded length; 170 mm overall case length
Operating Temp	-34 deg C to +177 deg C
Storage Temp	-51 deg C to +177 deg C
Power Consumption	Passive probe element; powered through compatible Proximity System interface
Thread Type	M10 x 1 metric thread
Armor Type	Without armor
Total Cable Length	0.5 m
Cable Type	75 ohm coaxial FEP insulated standard cable
Connector Type	Miniature coaxial ClickLoc connector
Probe Case Material	AISI 304 stainless steel
Probe Tip Material	Polyphenylene sulfide (PPS)
Linear Range	1.5 mm (60 mils)
Average Scale Factor	7.87 V/mm (200 mV/mil)
Target Material	AISI 4140 steel calibration target
Frequency Response	0 to 10 kHz (-3 dB)
Agency Approval	Multiple approvals including CSA, ATEX, IECEx options

Eddy-Current Measurement and Rotor Dynamics Monitoring

The Bently Nevada 330905-07-17-05-02-05 uses eddy-current probe scaling to convert shaft displacement into proportional electrical output signals. The probe works with compatible 3300 XL NSv Proximitor modules to provide radial vibration and position measurement data.

Additionally, the system requires gap voltage validation during commissioning. Technicians normally verify probe operation against the -10 VDC target gap voltage condition to confirm correct probe-to-shaft spacing.

The narrow side-view construction supports rotor dynamics monitoring applications where installation clearance limits standard probe mounting. Furthermore, the probe design reduces installation interference when measuring small shafts below 51 mm or flat targets below 15 mm.

Frequently Asked Questions

Q: What measurement principle does the 330905-07-17-05-02-05 use?
A: The probe uses eddy-current technology to measure relative shaft displacement through electromagnetic field variation between the probe tip and conductive target surface.

Q: Does this probe include an armored cable design?
A: No. The 330905-07-17-05-02-05 configuration uses a standard cable without armor protection.

Q: What connector type does this proximity probe use?
A: The probe uses a miniature coaxial ClickLoc connector designed for secure connection with compatible 3300 XL NSv system components.

Field Installation Guidelines

Install the probe with the correct M10 x 1 threaded mounting arrangement and maintain proper mechanical alignment between the probe tip and the measured shaft surface.

Route the coaxial cable separately from high-current power conductors and variable frequency drive output cables to reduce electrical interference. Maintain proper cable bending practices to prevent damage to the FEP insulation and connector assembly.

During commissioning, verify probe polarity, signal output, and gap voltage before placing the monitoring channel into service. Confirm that the probe tip faces the target surface without mechanical contact during machine operation.

Connect the ClickLoc connector securely and verify that the cable shield follows the system grounding requirements specified for the 3300 XL NSv installation.

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