330101-00-30-10-02-00 is a Bently Nevada 3300 XL series standard eddy current probe with a total length of 1.0 meter (3.3 feet). This model features 3/8-24 UNF threads, 0.0‑inch unthreaded length, 3.0‑inch overall case length, a standard ClickLoc coaxial connector, and standard FEP‑insulated cable. It does not include armor or hazardous area approvals. Its most notable feature is the 3.0‑inch (approx. 76.2 mm) case length, an extremely rare option in the 330101 series, specifically designed for very deep threaded mounting holes or exceptionally thick equipment walls (e.g., large turbine casings with very heavy insulation, heavy‑duty compressor housings, or special thick‑walled pressure vessels).
With a total length of 1.0 m, this probe is typically used with a 4.0‑meter extension cable (e.g., 330130-040-00-00) and a 5‑meter Proximitor Sensor (e.g., 330180-50-00) to form a complete 5‑meter system (1.0 m probe + 4.0 m extension cable = 5 m system). This configuration is suitable for installations where the Proximitor Sensor is mounted close to the equipment (e.g., in a junction box), but the mounting hole depth requirements are extremely demanding.
Model Breakdown: 330101-00-30-10-02-00 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) | 30
| 3.0 inches | Total threaded length (code 30 = 3.0 inches) |
Total Length Option (C) | 10
| 1.0 meter (3.3 ft) | Total probe cable length (including connector) |
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 defining feature of this model is its 3.0‑inch case length, an extremely rare option in the 330101 series, suitable for installations requiring very deep thread engagement or extremely thick equipment walls. The 1.0 m total length is for 5‑meter systems (paired with a 4.0 m extension cable). The unthreaded length is 0.0 inches, meaning the thread starts immediately after the probe tip. This model has no armor or hazardous area approvals, making it suitable for standard industrial environments.
Application Scenarios & Selection Guide
330101-00-30-10-02-00 is suitable for the following typical applications:
Standard 5‑Meter System Configuration: Paired with a 4.0 m extension cable (e.g., 330130-040-00-00) and a 5 m Proximitor Sensor (e.g., 330180-50-00) to form a complete 5‑meter monitoring system, ideal for compact layouts where the Proximitor Sensor is mounted near the equipment.
Installations Requiring Very Deep Thread Engagement: The 3.0‑inch case length (approx. 76.2 mm) is one of the longest options in the 330101 series, suitable for extremely deep mounting holes or very thick equipment walls, such as very large turbine casings with heavy insulation, heavy‑duty compressor housings, nuclear power plant equipment, or special thick‑walled pressure vessels.
Radial Vibration Monitoring: Suitable for shaft vibration measurement on fluid‑film bearing machines such as large compressors, steam turbines, generators, and pumps.
Axial Position (Thrust) Monitoring: Can be used to measure rotor axial position and monitor thrust bearing wear.
Keyphasor / Speed Measurement: Can serve as a Keyphasor probe to provide speed reference signals.
Standard Industrial Environments: No armor, no hazardous area approvals – suitable for non‑hazardous, dry, clean installations.
Selection Notes:
Total Length Matching: Probe length + extension cable length = Proximitor Sensor total system length (5 m or 9 m). This 1.0 m probe must be used with a 4.0 m extension cable to form a 5‑meter system.
Case Length Selection: This model has a 3.0‑inch case length, which is an extreme option. Before installation, carefully measure the effective thread depth of the mounting hole. Important: The datasheet maximum recommended thread engagement is 0.563 inches. The 3.0‑inch case is not meant to be fully threaded into the hole; the extra length accommodates the depth of the mounting hole. The actual engagement must be strictly limited to ≤0.563 inches using the lock nut and washers. Exceeding the recommended engagement may cause installation difficulty, probe damage, or even case bending. If the mounting hole is not deep enough to accommodate the extra length, select a model with a shorter case (e.g., 0.8, 1.2, 1.4, 1.6, or 2.0 inches).
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., 330101-00-30-10-02-05, if available).
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: 3.0 in (76.2 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, carefully measure the effective thread depth of the mounting hole. Because the case length is 3.0 inches but the recommended thread engagement is only 0.563 inches, do not thread the entire case into the hole. Use the lock nut and washers to precisely limit the effective engagement to ≤0.563 inches while ensuring a secure installation. The excess case length will remain outside the mounting hole, but be aware of potential space interference. 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:
Companion Product | Recommended Model | Description |
Extension Cable | 330130-040-00-00 | 4.0 m standard cable, forms 5 m system |
Proximitor Sensor | 330180-50-00 | 5 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 (case length comparison):
Model | Thread | Unthreaded Length | Case Length | Total Length | Armor | Approvals | Application |
330101-00-30-10-02-00 | 3/8-24 | 0.0" | 3.0" | 1.0 m | No | None | Current model, 5 m system, extra‑extra‑long case (3.0 in) |
330101-00-20-10-02-00 | 3/8-24 | 0.0" | 2.0" | 1.0 m | No | None | 5 m system, extra‑long case (2.0 in) |
330101-00-16-10-02-00 | 3/8-24 | 0.0" | 1.6" | 1.0 m | No | None | 5 m system, medium‑long case (1.6 in) |
330101-00-14-10-02-00 | 3/8-24 | 0.0" | 1.4" | 1.0 m | No | None | 5 m system, extra‑long case (1.4 in) |
330101-00-12-10-02-00 | 3/8-24 | 0.0" | 1.2" | 1.0 m | No | None | 5 m system, long case (1.2 in) |
330101-00-08-10-02-00 | 3/8-24 | 0.0" | 0.8" | 1.0 m | No | None | 5 m system, standard short case |
330101-00-30-05-02-00 | 3/8-24 | 0.0" | 3.0" | 0.5 m | No | None | 9 m system short probe, extra‑extra‑long case |
Matching Extension Cable: This probe must be used with a 4.0‑meter extension cable (e.g., 330130-040-00-00) to form a complete 5‑meter system.
Inquiry & Technical Support
330101-00-30-10-02-00 is an extra‑extra‑long case model in the Bently Nevada product line, designed for special installations requiring extremely deep mounting holes. Due to the uncommon nature of this model, it is strongly recommended to verify installation dimensions before ordering. 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 installation dimension (especially case length) and system length requirements, please provide the depth of your mounting hole as well as the extension cable and Proximitor Sensor models you are using, and we will help confirm compatibility.
