Description

Bently Nevada 330905-00-12-10-02-00 3300 NSv Proximity Probe

The Bently Nevada 330905-00-12-10-02-00, also cataloged as the 330905 Proximity Probe, operates as a dedicated eddy-current displacement sensor for shaft vibration and position measurement within the 3300 NSv Transducer System.

Hardware Specifications

Parameter	Specification
Model	330905-00-12-10-02-00
Brand	Bently Nevada
Product Series	3300 NSv Proximity Probe
Origin	USA
Weight	0.14 kg
Dimensions	120 mm overall case length, 1.0 m cable length
Operating Temp	-34 deg C to +177 deg C
Power Consumption	Supplied by compatible Bently Nevada proximity signal conditioner
Measurement Type	Non-contact eddy-current displacement and vibration sensing
Thread Type	M10 x 1 metric thread
Probe Construction	Unarmored probe design
Scale Factor	7.87 V/mm (200 mV/mil) nominal
Linear Range	Approximately 1.5 mm to 2.0 mm (60 to 80 mils)
Target Material	AISI 4140 steel calibration target
Cable Type	75 ohm coaxial cable with FEP insulation
Connector Type	Miniature coaxial ClickLoc connector
Case Material	300 series stainless steel
Probe Tip Material	Polyphenylene sulfide (PPS)

Eddy-Current Measurement and Rotor Dynamics Characteristics

The 330905-00-12-10-02-00 uses an eddy-current sensing principle to detect relative shaft displacement without mechanical contact. Therefore, the probe provides direct measurements of shaft vibration and axial position changes for rotating machinery monitoring.

The probe applies Bently Nevada eddy-current probe scaling characteristics with a nominal sensitivity of 7.87 V/mm. Furthermore, the system requires correct gap voltage validation during commissioning to maintain signal accuracy, with typical proximity systems using a -10 VDC target gap reference.

The 3300 NSv design supports rotor dynamics analysis by providing displacement signals from restricted installation locations. In addition, the narrow side-view construction allows installation near small diameter shafts, compact bearing housings, and limited counterbore spaces.

Frequently Asked Questions

Q: Does the 330905-00-12-10-02-00 require physical contact with the rotating shaft?
A: No. The probe uses an eddy-current sensing method and measures shaft displacement through an electromagnetic field without mechanical contact.

Q: What cable and connector configuration does this model use?
A: This model uses a 1.0 m standard coaxial cable with a miniature coaxial ClickLoc connector.

Q: Can this probe operate in high-temperature machinery environments?
A: Yes. The probe operating temperature range is -34 deg C to +177 deg C. The installation location must remain within the specified environmental limits.

Field Installation Guidelines

Install the 330905-00-12-10-02-00 probe with the correct M10 x 1 thread engagement and maintain mechanical alignment with the monitored shaft surface.

Route the coaxial cable away from high-current power conductors and sources of electromagnetic interference. Use proper cable separation practices to maintain signal integrity.

Verify the probe gap voltage during commissioning through the connected proximity monitoring system. Confirm the output signal polarity, mechanical clearance, and target surface condition before placing the machinery into operation.

Avoid excessive cable bending near the ClickLoc connector area. Maintain the recommended minimum bend radius defined by the cable installation requirements to prevent internal conductor damage.

Specifications

• Brand: Bently Nevada

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems