The 330101-00-43-20-02-05 is a Bently Nevada API 670 non-contacting eddy current probe featuring a 4.3-inch intermediate case length and high-grade polyphenylene sulfide (PPS) encapsulation. Fully cross-compatible with legacy hardware matrices, this unit works seamlessly alongside 3300 XL Proximitor sensors to deliver linear, temperature-stabilized voltage scaling over a 2.0 mm operational gap.
Specifications
Unthreaded Length Option:0.0 in
Overall Case Length Option:4.3 in
Total Length Option:2.0 meters (6.6 feet)
Connector and Cable-Type Option:Miniature coaxial ClickLoc connector, standard cable
Agency Approval Option:CSA, ATEX, IECEx Approvals
Application
- Turbine monitoring: Measures shaft vibration and position in steam and gas turbines.
- Compressors & pumps: Detects imbalance, misalignment, and bearing faults.
- Power generation: Supports continuous condition monitoring of generators.
- Oil & gas industry: Ensures safe operation in hazardous environments.
- Predictive maintenance: Enables early fault detection to reduce downtime and maintenance costs.
Specific Application
- Intermediate Case Penetration: Tailored for machine configurations requiring a 4.3-inch structural reach through mid-sized outer fluid bearing covers or intermediate structural adaptor blocks.
- Dynamic Oil-Film Cross-Correlation: Continuously tracks dual-axis orthogonal orbital paths and dynamic shaft centerline tracking on gas turbine rotors.
- Phase Trigger Reference: Serves as a high-precision phase angle anchor when target-aligned with a precision shaft keyway slot to synchronize multi-channel diagnostic data.
System Compatibility & Alternative Models
- System Compatibility: Electrically tracks and pairs natively with standard 3300 XL Proximitor Sensors (e.g., 5.0 or 9.0-meter variations when matched with an appropriate extension cable). It provides backwards plug interchangeability with older, non-XL 3300 series instruments, although pairing with legacy components limits aggregate system accuracy parameters to baseline non-XL limits.
- Alternative Model (For Open Mechanical Hazards): 330102-00-43-20-02-05 Armored Probe.
- Difference: The standard 330101 configuration runs a bare, flexible 75Ω triaxial FEP jacket. The 330102 variation adds an outer layer of stainless steel interlocking metal armor with an external FEP layer, providing premium protection against physical cutting or pinching hazards inside the casing.
- Alternative Model (For Sub-Zero Operating Climates): 330191-00-45-20-05 Extended Temperature Range (ETR) Probe.
- Difference: The 330101 standard probe tip handles temperatures down to -52°C, but drops its primary pressure seal performance if exposed to ambient zones below -34°C (-30°F). The specialized ETR 330191 architecture replaces internal FEP matrices with perfluoroalkoxy (PFA) insulation, raising its maximum peak boundary threshold up to +218°C (+425°F) while providing a slightly thicker 4.5-inch case depth.
Ordering Information Table Breakdown
|
Parameter Code |
Option Classification |
Selected Metric & Mechanical Configuration |
|
330101 |
Base Framework |
3300 XL 8 mm Proximity Probe, standard 3/8-24 UNF-2A thread pattern, unarmored |
|
00 |
A: Thread Relief Profile |
0.0 inches unthreaded length (Full-length threading across the case) |
|
43 |
B: Thread Reach Depth |
4.3 inches total case length (Specified in precise 0.1-inch processing steps) |
|
20 |
C: Cable Extension |
2.0 meters (Equivalent to 6.6 feet of total integrated lead cable) |
|
02 |
D: Junction Interface |
Miniature coaxial ClickLoc connection interface, standard triaxial FEP insulation |
|
05 |
E: Safety Attestation |
Comprehensive multi-region hazardous area approvals (Certified CSA, ATEX, and IECEx) |
Accessories
| 141078 | 3300 XL 8 mm and 3300 5 mm Proximity Transducer System Manual. |
| 175751 | 3300 XL Multi-Purpose Stainless Steel Housing. 12”x12”x6”. Can hold up to 8 Proximitor Sensors in a DIN-mount configuration or 6 Proximitor Sensors in a panelmount configuration. (Available with ATEX Zone 0 and Zone 1 certifications.) |
| 176467 | 3300 XL Multi-Purpose Stainless Steel Housing. 12”x8”x6”. Can hold up to 4 3300XL Proximitor Sensors in both DIN-mount and panel-mount configurations. (Available with ATEX Zone 0 and Zone 1 certifications.) |
| 330181 | 3300 XL Multi-Purpose Stainless Steel Housing. 13”x9.5”x7”. Can hold up to 8 Proximitor sensors in a DIN-mount configuration or 6 Proximitor Sensors in a panelmount configuration. Primarily used by customers requiring hazardous area approvals fro their installations. Available with ATEX Zone 0 and Zone 1 and North American Division 1 and Division 2 certifications. |
| 02120015 | Bulk field wire. 1.0 mm2 (18 AWG), 3 conductor, twisted, shielded cable with drain wire. Specify length in feet. |
| 138492-01 | Replacement panel-mount mounting pad. |
| 138493-01 | Replacement DIN-mount mounting pad. |
| 148722-01 | 3300 XL test plug. The 3300 XL Test Plug contains 3 small test pins attached to 3 color-coded 1-meter wires, each terminated in a banana plug. The 3-pin adapter plugs into the test pin holes on 3300 XL-style Proximitor sensors. You can use this test plug to check the performance of the Proximitor sensor from the test pin holes in the terminal strip without removing the field wiring. |
| 04310310 | 3300 XL Proximitor Sensor panelmount screw. One 6-32 UNC thread forming mounting screw. Four screws are required for each Proximitor sensor. (Screws supplied standard with Proximitor housings [3300 XL panel-mount option]). |
| 03200006 | Silicone self-fusing tape. A 9.1- meter (10-yard) roll of silicone tape to protect connectors. This tape is easy to install and provides excellent electrical isolation and protection from the environment. We do not recommend using this tape inside the casing of the machine. |
| 40113-02 | Connector Protector Kit. Connector Protector Kit for 3300 XL 8 mm probes and extension cables, including connector protectors and installation tools. |
| 136536-01 | Connector protector adapter. This allows you to use connector protector installation tools manufactured prior to 1998 with 75Ω ClickLoc connectors. |
| 40180-02 | Connector protectors. Package contains 10 pairs of connector protectors for 3300 XL 8 mm probes and extension cables. |
| 03839410 | 75Ω triaxial male connector protector. Male connector protectors install onto the extension cable and attach to the female connector protector on the probe, providing environmental protection of connectors. |
| 03839420 | 75Ω triaxial female connector protector. Female connector protectors install onto the probe lead and attach to the male connector protector on the extension cable, providing environmental protection of connectors. You can also place the connector protector onto the extension cable to slide over the connection to the Proximitor sensor to protect that connection from the environment. |
| 04301007 | 3/8-24 probe lock nut with safety wire holes. Single probe lock nut with 2 holes drilled through the nut in order to secure the lock nut in place with safety wire. |
| 04301008 | M10 x 1 probe lock nut with safety wire holes. Single probe lock nut with 2 holes drilled through the nut in order to secure the lock nut in place with safety wire. |
| 330153-01 | 3300 XL connector kit. Used on 3300 XL 8 mm probes and extension cables. Contains 1 pair each of male and female ClickLoc connectors, 2 colorcoded sleeves, 2 pieces of slit FEP tubing, and 1 strip of silicone tape. |
| 330153-09 | 3300 XL ETR Connector Kit. Used on ETR 3300 XL 8mm probes and 3300 ETR XL extension cables. Contains one pair of male and female ClickLoc connectors, two color-coded sleeves, two pieces of high temperature slit FEP tubing, and one strip of silicon tape. |
| 163356 | Connector Crimp Tool Kit. Includes 1 set of multiconnector inserts and connector installation instructions. Compatible only with 330153 connector kits or with probes shipped in 2003 or later with ClickLoc connectors uninstalled. Supplied with carrying case. |







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