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Bently Nevada 330104-00-20-05-02-00 3300 XL 8 mm Proximity Probe

Configured for shaft displacement measurement in the Bently Nevada 3300 XL Proximity Transducer System, the Bently Nevada 330104-00-20-05-02-00 (330104 3300 XL 8 mm Proximity Probe) provides direct eddy-current signal conversion for vibration, position, and Keyphasor monitoring circuits.

Hardware Specifications

Parameter	Specification
Model	330104-00-20-05-02-00
Brand	Bently Nevada
Product Type	Eddy Current Proximity Sensors
Series	3300 XL 8 mm Proximity Probe
Origin	USA
Dimensions	200 mm case length, 0.5 meter probe cable length
Operating Temp	-35 deg C to +177 deg C
Power Consumption	12 mA max at -17.5 VDC to -26 VDC supply
Thread Type	M10 x 1 metric thread
Probe Construction	Armored cable configuration with AISI 304 stainless steel case
Cable Armor	Flexible AISI 302 stainless steel with FEP outer jacket
Connector Type	Miniature coaxial ClickLoc connector
Probe Tip Material	Polyphenylene sulfide (PPS)
Measurement Principle	Eddy current non-contact displacement measurement
System Linear Range	2.0 mm (80 mils)
Scale Factor	7.87 V/mm (200 mV/mil), +/-6.5 percent typical
Frequency Response	0 Hz to 10 kHz (+0, -3 dB)
Output Resistance	50 ohm from Proximitor Sensor
Target Material	AISI 4140 steel calibration target
API Compliance	API 670 compliant for 5 meter and 9 meter systems

Eddy Current Probe Scaling and Rotor Dynamics Monitoring

The 3300 XL 8 mm proximity probe uses an eddy-current measurement circuit to convert shaft motion into proportional electrical output. Therefore, the probe provides linear displacement feedback for rotor vibration analysis and axial position monitoring.

The 7.87 V/mm scale factor supports Proximitor Sensor signal conditioning, while the DC response allows static shaft position measurement and dynamic vibration detection within the same measurement loop.

Additionally, the system supports gap voltage validation procedures. Field technicians normally verify probe operating condition through gap voltage measurements, with -10 VDC commonly used as the nominal target for Bently Nevada proximity systems.

The probe design reduces measurement errors caused by mechanical movement and maintains signal integrity through armored cable protection. As a result, the device supports rotor dynamics evaluation in rotating equipment monitoring applications.

Frequently Asked Questions

Q: What measurement function does the 330104-00-20-05-02-00 provide?
A: The probe measures shaft displacement through an eddy-current sensing principle and outputs proportional vibration and position signals through the compatible Proximitor Sensor.

Q: Does this model support armored cable installation?
A: Yes. The 330104-00-20-05-02-00 includes an armored cable construction using flexible stainless steel armor with an FEP protective jacket.

Q: What power supply does the connected proximity system require?
A: The connected Proximitor Sensor requires a -17.5 VDC to -26 VDC supply and operates with a maximum current consumption of 12 mA.

Field Installation Guidelines

• Install the probe with the specified M10 x 1 metric thread engagement and maintain correct mechanical alignment with the monitored shaft surface.
• Verify the probe tip clearance before equipment operation to ensure the measurement range remains within the calibrated displacement area.
• Use shielded signal routing practices and separate probe cables from high-current power wiring to reduce electrical interference.
• Connect cable shielding according to the monitoring system grounding design and avoid multiple unintended grounding paths.
• Confirm gap voltage after installation and validate the signal output before commissioning the machinery monitoring loop.
• Protect the ClickLoc connector area from mechanical stress, contamination, and excessive bending during cable routing.

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