The Bently Nevada 330106-05-30-05-02-00, also cataloged as the 330106 Reverse Mount Probe, operates as a dedicated hardware component for physical displacement measuring within the 3300 XL Proximity Transducer System.
330106: 3300 XL 8 mm Reverse Mount Probe Base Model (3/8-24 UNF threads)
-05: Unthreaded Length Option (0.5 in)
-30: Overall Case Length Option (3.0 in)
-05: Total Length Option (0.5 meter / 1.6 feet)
-02: Miniature ClickLoc coaxial connector
-00: Agency Approval Option (Not required)
| Parameter | Specification |
| Model | 330106-05-30-05-02-00 |
| Brand | Bently Nevada |
| Origin | USA |
| Weight | 0.350 kg estimate (Shipping weight 2.0 kg) |
| Dimensions | 3/8-24 UNF reverse mount threaded body profile |
| Operating Temp | -51 deg C to +177 deg C |
| Power Consumption | Passive transducer component (externally driven by loop) |
| Pressure Sealing | Viton O-ring differential pressure seal between tip and case |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Probe Case Material | AISI 303 or 304 stainless steel (SST) |
| Connector Type | Miniature ClickLoc coaxial connector |
| Total Length | 0.5 meter (1.6 feet) |
The 330106 reverse mount configuration relies on precise eddy-current probe scaling to convert physical gap variations into corresponding voltage modulations within the active machine monitoring loop. Field installation requires systematic gap voltage validation targeting a nominal -10 VDC baseline, aligning the sensor at the true midpoint of the standard 80 mil linear measurement window when referencing a 4140 steel target. The gold-plated miniature ClickLoc coaxial connection provides deterministic cross-talk suppression and continuous ground shielding termination, maintaining high-frequency signal integrity under intense rotor dynamics before the lead terminates at the Proximitor input stage.
Q: What is the technical pressure sealing limit for this standard probe?
A: The probe utilizes a Viton O-ring designed to seal differential pressure between the probe tip and case. However, standard production models are not pressure tested prior to shipment; application-specific pressure certification requires custom laboratory testing.
Q: Can this 0.5 meter probe be wired directly to a 3500 series monitor without an extension cable?
A: No. The internal electrical properties require matched tuning. A matching 3300 XL extension cable must be added to reach a total system length of either 5.0 meters or 9.0 meters as required by the paired Proximitor Sensor.
Q: How does the ClickLoc connector interface handle mechanical vibration without shifting the gap baseline?
A: The miniature ClickLoc connector features an internal positive locking ring that prevents terminal disengagement, maintaining low electrical contact resistance and cross-talk suppression during continuous shaft vibration.
Confirm the machinery train is fully isolated and locked out. Verify the target area on the rotating shaft is smooth and free from mechanical flaws, scoring, or magnetic runout.
Carefully thread the 330106 reverse mount probe assembly into the designated sleeve housing, avoiding contact between the PPS tip and internal bore walls.
Power the external Proximitor circuit and connect a calibrated digital multimeter. Rotate the probe body to adjust the physical gap until the gap voltage validation confirms exactly -10.0 VDC.
Secure the primary outer casing locknut against the sleeve mount to eliminate physical drift caused by localized casing resonance and structural machine vibration.
Snap the miniature ClickLoc coaxial terminal into the extension cable mating receptacle. Apply oil-resistant insulation wrap or a dedicated connector sleeve over the junction to eliminate conductive fluid ingress.
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