Introduction
The Bently Nevada 330173-08-18-10-02-00 is a 3300 5mm Proximity Probe engineered for non-contact measurement of shaft position, displacement, and dynamic movement in rotating machinery. It is part of the 330173 metric configuration, using an M8 × 1 thread and without-armor construction. The probe is designed to operate as part of a complete 3300 5 mm transducer system with a compatible extension cable and Proximitor sensor.
This particular version stands out for its 80 mm unthreaded length and 180 mm overall case length, combined with a 1.0 m cable and miniature coaxial ClickLoc connector with standard cable. The result is a long-reach probe configuration suited to installations where the sensing point is significantly recessed from the mounting location.
For replacement applications, the complete part number should be treated as the primary identification. A 3300 5 mm probe with the same sensing technology but a different unthreaded or case length may not provide the required mechanical fit.
Technical Specifications
The ordering structure of the 330173 series makes the configuration easy to distinguish. The 330173 base identifies an M8 × 1, without-armor 3300 5 mm probe; the remaining characters define the unthreaded length, overall case length, cable length, connector, and approval option.
| Specification | Details |
|---|
| Manufacturer | Bently Nevada |
| Model | 330173-08-18-10-02-00 |
| Product Type | 3300 5mm Proximity Probe |
| Sensing Technology | Eddy-current, non-contact |
| Probe Family | 3300 5 mm |
| Base Model | 330173 |
| Mounting Thread | M8 × 1 |
| Construction | Without armor |
| Unthreaded Length | 80 mm (3.15 in) |
| Overall Case Length | 180 mm (7.09 in) |
| Total Cable Length | 1.0 m (3.3 ft) |
| Connector | Miniature coaxial ClickLoc connector |
| Cable Type | Standard cable |
| Cable Impedance | 75 Ω |
| Probe Tip Diameter | 5.2 mm (0.21 in) |
| Probe Tip Material | PPS |
| Probe Case Material | AISI 304 stainless steel |
| Minimum Cable Bend Radius | 25.4 mm (1.0 in) |
| Agency Approval | 00 — Standard approval option |
| Typical Probe Weight | Approximately 323 g |
Applications
Turbine Rotor Monitoring
The extended probe configuration is suitable for compatible steam and gas turbine installations where the sensing location is positioned well inside the machinery structure. Shaft displacement and dynamic movement measurements can provide valuable input for machinery protection and condition monitoring.
Compressor Shaft Monitoring
High-speed compressors require reliable monitoring of rotor behavior. The 3300 5 mm system provides non-contact sensing for compatible compressor applications, while the 80 mm unthreaded section can accommodate deeper mounting arrangements.
Generator Monitoring
Generators and other large rotating machines can use proximity probes to monitor shaft movement and position. The extended configuration can be advantageous where the probe must pass through a relatively deep mounting arrangement.
Fluid-Film Bearing Machinery
The 3300 5 mm transducer system is particularly relevant to machinery using fluid-film bearings, where shaft position and dynamic vibration are important operating parameters. When combined with compatible signal-conditioning equipment, the probe forms part of a complete shaft-monitoring system.
Pump and Motor Monitoring
Compatible pumps, motors, and other rotating equipment can use the probe for continuous non-contact shaft measurement. The M8 × 1 mounting thread provides a practical metric installation interface.
Recessed Measurement Points
The 80 mm unthreaded length is especially useful where the probe sensing location is separated from the mounting surface. Rather than relying on a shorter standard probe and an unsuitable mechanical arrangement, the extended configuration can provide the required physical reach.
Industrial Maintenance and Replacement
This model is a strong candidate for replacement projects where the original installation calls for an 80 mm unthreaded section, 180 mm case, 1.0 m cable, and standard ClickLoc connector. Matching the complete ordering code helps maintain the intended mechanical arrangement.
Advantages
Extended 80 mm Unthreaded Length
The defining feature of this model is its 80 mm unthreaded section. This provides considerably more installation reach than configurations with little or no unthreaded length.
180 mm Overall Case
The 180 mm overall case length makes this one of the longer configurations in the 330173 family. It is particularly valuable where the probe must reach through a substantial mounting structure.
Compact 5.2 mm Sensing Tip
Despite its long mechanical body, the probe retains the compact 5.2 mm sensing tip used by the 3300 5 mm platform. This helps accommodate applications with limited space around the measurement target.
M8 × 1 Metric Mounting
The M8 × 1 thread offers a compact metric mounting solution and differentiates this model from 330171 probes, which use 1/4-28 UNF threading.
Non-Contact Eddy-Current Measurement
The probe measures the distance to a conductive target without physical contact. This eliminates mechanical contact between the sensing element and the rotating shaft during normal operation.
1.0 m Standard Cable
The 1.0 m cable provides a practical connection length for many machinery installations while avoiding unnecessary excess cable.
ClickLoc Connector
The miniature coaxial ClickLoc connector provides a compact interface to compatible 3300 system components and simplifies connection in space-constrained machinery areas.
Robust Industrial Construction
The 3300 5 mm design uses a PPS probe tip and AISI 304 stainless-steel case, providing a durable construction for industrial rotating-equipment monitoring.
Precise Replacement Specification
The complete 330173-08-18-10-02-00 ordering number defines the probe's mechanical and electrical configuration. This is particularly valuable for maintenance teams because selecting by “3300 5 mm” alone does not establish dimensional compatibility.
Technical FAQs
1. What is the Bently Nevada 330173-08-18-10-02-00?
It is a 3300 5mm proximity probe with an M8 × 1 thread, without-armor construction, 80 mm unthreaded length, 180 mm overall case, 1.0 m cable, miniature coaxial ClickLoc connector, and 00 approval option.
2. What does the 330173 designation mean?
The 330173 base model identifies a 3300 5 mm probe with M8 × 1 thread and without armor.
3. What does the first “08” specify?
The first 08 identifies the 80 mm unthreaded-length option.
4. What does “18” mean?
The 18 specifies the 180 mm overall case-length option, approximately 7.09 inches. The 3300 5 mm metric ordering system provides case lengths in 10 mm increments.
5. How long is the cable?
The 10 cable option specifies a 1.0-meter (3.3-foot) total cable length.
6. What connector does the probe use?
The 02 option specifies a miniature coaxial ClickLoc connector with standard cable.
7. Is the probe armored?
No. The 330173 family is the M8 × 1, without-armor version. The 330174 family is the corresponding M8 × 1 configuration with armor.
8. What is the probe-tip diameter?
The 3300 5 mm probe has a 5.2 mm (0.21 in) probe-tip diameter.
9. What is the approximate weight?
The standard published weight for the 3300 5 mm probe is approximately 0.323 kg (323 g). This refers to the probe assembly and should not be confused with packaged shipping weight.
10. Can this model replace a shorter 330173 probe?
Not automatically. The 80 mm unthreaded length and 180 mm case length are critical mechanical specifications. A shorter probe may have the same M8 × 1 thread and 5.2 mm tip but still fail to provide the correct mounting geometry. The original part number should therefore be matched wherever possible.
A DCS Q Co., Ltd. - PLC and DCS Industrial Control Equipment Wholesale
