Description

The Bently Nevada 330101-00-20-10-02-CN, also cataloged as the 330101 Proximity Sensors, operates as a dedicated hardware component for contactless vibration and position displacement measurements within TSI monitoring platforms.

Suffix Breakdown & Model Matrix

• 330101: 3300 XL 8 mm Proximity Probe base model with 3/8-24 UNF thread.
• -00: Unthreaded length option designated as 0.0 in.
• -20: Overall case length option designated as 2.0 in.
• -10: Total length option designated as 1.0 meter (3.3 feet).
• -02: Miniature coaxial ClickLoc connector with standard cable option.
• -CN: Agency approval option specifying CSA, ATEX, and IECEx approvals.

Hardware Specifications

Proximity Sensor Signal Scaling and Gap Voltage Validation

The 330101-00-20-10-02-CN probe operates on the eddy-current principle to measure static and dynamic distances between the sensor tip and the target conductive surface. Specifically, the integrated coil emits a high-frequency magnetic field that interacts with the rotating shaft. Furthermore, as the target moves relative to the probe tip, the Proximitor sensor conditions the eddy-current field variation into a proportional electrical signal. Consequently, the probe maintains linear output scaling across the full linear range and maintains precise calibration near -10 VDC gap voltage bias targets during steady-state shaft position validation.

Frequently Asked Questions

Q: How do technicians verify correct probe installation prior to applying power?

A: Technicians measure the physical gap using feeler gauges or monitor the DC gap voltage at the Proximitor sensor output. Consequently, adjusting the probe until the voltage reads approximately -10 VDC confirms proper placement within the linear measuring range.

Q: Can maintenance teams interchange this probe with other 3300 XL components without recalibration?

A: Yes, the design allows complete interchangeability across 3300 XL probes, extension cables, and Proximitor sensors without requiring individual bench calibration.

Field Installation Guidelines

• First, inspect the 3/8-24 UNF threads and clean the mounting hole to prevent binding during mechanical insertion.
• Next, thread the probe into the mounting bracket until the tip reaches the specified gap distance or indicates the target -10 VDC bias voltage.
• Additionally, hand-tighten the ClickLoc coaxial connector securely to lock the coupling mechanism and prevent accidental disconnects due to vibration.
• Finally, route the probe cable away from high-voltage conduit and secure it to avoid physical damage during shaft rotation and dynamic machinery operation.