330101-00-12-05-02-00 is a Bently Nevada 3300 XL series standard eddy current probe with a total length of 0.5 meter (1.6 feet). This model features 3/8-24 UNF threads, 0.0‑inch unthreaded length, 1.2‑inch overall case length, a standard ClickLoc coaxial connector, and standard FEP‑insulated cable. It does not include armor or hazardous area approvals. Its notable feature is the very short 0.5 m total length, which is specifically intended to be used with an 8.5‑meter extension cable to form a complete 9‑meter system (0.5 m probe + 8.5 m extension cable = 9 m system). This configuration is ideal for large rotating machinery where the Proximitor Sensor must be located far from the probe mounting point.
The probe is suitable for radial vibration, axial position, and Keyphasor/speed measurements, and it is one of the shortest total length options in the 3300 XL 8 mm probe series.
Model Breakdown: 330101-00-12-05-02-00 Configuration Details
Following Bently Nevada’s part number coding system (refer to datasheet Pages 13-14), the fields in this model number represent the following:
Field | Code | Parameter | Description |
Base Model | 330101
| 3300 XL 8 mm Probe, 3/8-24 UNF thread, without armor | Compatible with 3300 XL 8 mm and 3300 5 mm systems |
Unthreaded Length (A) | 00
| 0.0 inches | Distance from probe tip to start of thread; shortest configuration |
Overall Case Length (B) | 12
| 1.2 inches | Total threaded length (code 12 = 1.2 inches) |
Total Length Option (C) | 05
| 0.5 meter (1.6 ft) | Total probe cable length (including connector); shortest total length option |
Connector & Cable Option (D) | 02
| Miniature coaxial ClickLoc connector, standard cable | Standard FEP‑insulated cable, gold‑plated ClickLoc connector |
Agency Approval (E) | 00
| Not required | Standard industrial version for non‑hazardous areas |
Key Configuration Note: The most prominent feature of this model is its 0.5 m total length, the shortest cable length in the 330101 series. It must be paired with an 8.5‑meter extension cable (e.g., 330130-085-00-00) to form a complete 9‑meter system (0.5 m + 8.5 m = 9 m). The case length of 1.2 inches is longer than the standard 0.8 inches, suitable for applications requiring deeper thread engagement or installation depth. The unthreaded length is 0.0 inches, meaning the thread starts immediately after the probe tip.
Application Scenarios & Selection Guide
330101-00-12-05-02-00 is suitable for the following typical applications:
Precise Total Length Matching for 9‑Meter Systems: This 0.5 m probe must be paired with an 8.5‑meter extension cable (e.g., 330130-085-00-00) to form a complete 9‑meter system (0.5 m + 8.5 m = 9 m). Ideal for long‑distance signal transmission where the Proximitor Sensor is mounted in a control room or remote cabinet while the probe is installed on the equipment.
Longer Case Length Requirement: The 1.2‑inch case length (approx. 30.5 mm) is longer than the standard 0.8 inches, suitable for deeper threaded mounting holes or applications where the probe needs to be inserted further into the equipment.
Standard Industrial Environments: No armor, no hazardous area approvals – suitable for non‑hazardous, dry, clean installations.
Radial Vibration Monitoring: For shaft vibration measurement on large turbomachinery, compressors, generators, and pumps.
Axial Position and Keyphasor Measurements: Can be used for thrust bearing displacement monitoring and speed reference signals.
Selection Notes:
Total Length Matching: Probe length + extension cable length = Proximitor Sensor total system length (5 m or 9 m). This 0.5 m probe must be used with an 8.5‑meter extension cable to form a 9‑meter system. Do not pair it with a 4.0 m cable (that would create a 4.5 m system, which does not match standard Proximitor lengths).
System Accuracy: The 9‑meter system has a larger linear deviation (DSL) of ±0.038 mm compared to ±0.025 mm for 5‑meter systems. For applications with extremely high accuracy requirements, consider using a 5‑meter system.
Thread Installation: 3/8-24 UNF threads. The mounting hole must match this thread. Thread engagement length should not exceed the datasheet maximum (0.563 inches) to avoid installation difficulty or probe damage. Although this probe has a 1.2‑inch case length allowing longer engagement, care must still be taken not to exceed the limit.
Unthreaded Length: This model has 0.0‑inch unthreaded length. If your mounting hole has an internal shoulder or you need the probe tip to extend a certain distance, select a model with a longer unthreaded length (e.g., code "04" = 0.4 inches).
Ambient Temperature: Standard probe is rated to +177°C. If the application exceeds this temperature, select an ETR high‑temperature probe (330191/330192 series).
Hazardous Area Requirements: If the installation area has explosive gas atmospheres, select the version with hazardous area approvals (e.g., 330101-00-12-05-02-05).
Armor Protection: If the cable may be subject to mechanical damage (crushing, abrasion), select an armored version (e.g., 330102 base model or the same specification with armor).
Mechanical Dimensions & Installation
Probe Tip Diameter: 8.0 mm (0.31 in)
Thread Specification: 3/8-24 UNF-2A; recommended lock nut torque: 11.2 N·m (100 in·lbf)
Overall Case Length: 1.2 in (30.5 mm)
Unthreaded Length: 0.0 in
Cable Outer Diameter: 3.68 mm (0.145 in) maximum
Connector Outer Diameter: 7.24 mm (0.285 in) maximum
Minimum Bend Radius: 25.4 mm (1.0 in)
Installation Tips: Before installation, inspect the mounting hole threads for cleanliness and proper depth. Use the recommended Bently Nevada lock nut (part number 04301007) and tighten to the specified torque. Set the probe gap to the recommended -9 Vdc (approx. 1.27 mm), which can be monitored via the Proximitor Sensor output voltage.
Related Products & Compatible Configurations
This probe is typically used with the following products to form a 9‑meter system:
Companion Product | Recommended Model | Description |
Extension Cable | 330130-085-00-00 | 8.5 m standard cable, forms 9 m system |
Proximitor Sensor | 330180-90-00 | 9 m system panel‑mount Proximitor, no approvals |
Lock Nut | 04301007 | 3/8-24 lock nut with safety wire holes |
Mounting Bracket | 137492-01 | Aluminum threaded mounting bracket, 3/8-24 thread |
For other configurations, refer to the following probe options:
Model | Thread | Unthreaded Length | Case Length | Total Length | Armor | Approvals | Application |
330101-00-12-05-02-00 | 3/8-24 | 0.0" | 1.2" | 0.5 m | No | None | Current model, short probe for 9 m system |
330101-00-12-05-02-05 | 3/8-24 | 0.0" | 1.2" | 0.5 m | No | ATEX/IECEx | Hazardous area 9 m system |
330101-00-08-10-02-00 | 3/8-24 | 0.0" | 0.8" | 1.0 m | No | None | Standard 5 m system |
330101-00-12-10-02-00 | 3/8-24 | 0.0" | 1.2" | 1.0 m | No | None | 5 m system, longer case |
330102-00-12-05-02-00 | 3/8-24 | 0.0" | 1.2" | 0.5 m | Yes | None | 9 m system with armored mechanical protection |
Matching Extension Cable: This probe must be used with an 8.5‑meter extension cable (e.g., 330130-085-00-00) to form a complete 9‑meter system.
Inquiry & Technical Support
330101-00-12-05-02-00 is a commonly used model in the Bently Nevada product line, typically employed in long‑distance monitoring systems. For pricing, lead time, or technical drawings, please contact us:
Online Inquiry: Click the “Request a Quote” button and provide the model number for a prompt response.
Technical Support: If you need assistance verifying whether this configuration meets your 9‑meter system total length matching and installation dimension requirements, please provide your extension cable and Proximitor Sensor model numbers, and we will help confirm system length and accuracy.
