330101-00-08-20-02-05 | Bently Nevada 8 mm Probe 3/8-24 UNF

Cost-Effective Vibration Monitoring with the 330101-00-08-20-02-05

When unplanned downtime threatens your production line, the 330101-00-08-20-02-05 from Bently Nevada delivers reliable vibration data to prevent costly failures. This 3300 XL 8 mm probe uses a 3/8-24 UNF thread and comes without armor, making it a practical choice for many rotating machinery applications. Its robust construction reduces maintenance needs, directly lowering your total cost of ownership.

Key Features and Technical Specs

• Probe Type: 3300 XL 8 mm probe with 3/8-24 UNF thread, without armor.
• Unthreaded Length: 0.0 inches, offering a flush mounting profile.
• Overall Case Length: 0.8 inches, ensuring a compact footprint.
• Total Length: 2.0 meters (6.6 feet) of cable for flexible installation.
• Connector: Miniature coaxial ClickLoc connector with standard cable for secure connections.
• Approvals: CSA, ATEX, and IECEx certified for hazardous environments.
• Tip Material: Polyphenylene sulfide (PPS) for durability and chemical resistance.
• Case Material: AISI 303 or 304 stainless steel (SST) for corrosion resistance.
• Weight: 323 g/m (11.4 oz), lightweight for easy handling.

A standout spec is the patented TipLoc molding method, which provides a more robust bond between the probe tip and body. This directly reduces the risk of probe failure, saving on replacement costs and unplanned downtime.

Real-World Applications and Cost Benefits

In industries like oil and gas, power generation, and petrochemicals, the 330101-00-08-20-02-05 excels at monitoring shaft vibration and position. For example, in a steam turbine application, its 2 mm linear range (from 0.25 to 2.3 mm) and incremental scale factor of 7.87 V/mm (200 mV/mil) provide precise data. This accuracy helps operators detect early bearing wear, avoiding catastrophic failures that can cost hundreds of thousands in repairs. The probe's operating temperature range of -52°C to +177°C ensures reliable performance in harsh conditions, further extending service life and reducing replacement frequency.

Installation and Setup for Maximum Efficiency

Installing the 330101-00-08-20-02-05 is straightforward. Use the recommended gap setting of -9 Vdc (approximately 1.27 mm or 50 mils) for radial vibration monitoring. The ClickLoc connector simplifies cable attachment, and the probe's 2.0-meter cable length offers flexibility in mounting locations. For field wiring, use 0.2 to 1.5 mm² (16 to 24 AWG) three-conductor shielded triad cable, with a maximum length of 305 meters (1,000 feet) to the Proximitor sensor. Proper installation ensures accurate readings and minimizes signal noise, directly impacting measurement reliability and reducing false alarms.

Maintenance and Reliability for Long-Term Savings

The patented CableLoc design provides 330 N (75 lbf) pull strength, securing the probe cable and tip against mechanical stress. This reduces the need for frequent inspections and replacements. The probe's relative humidity tolerance—less than 3% change in Average Scale Factor (ASF) after 56 days at 93% humidity—ensures stable performance in humid environments. Regular inspection per the manufacturer's manual is recommended, but the robust construction means fewer interventions, lowering maintenance labor costs over the product's lifespan.

Compatibility and Integration

The 330101-00-08-20-02-05 integrates seamlessly with Bently Nevada 3300 XL Proximitor sensors and monitoring systems. Its standard 5 or 1 meter system incremental scale factor of 7.87 V/mm (±5%) ensures interchangeability within the series, simplifying spare parts management. This compatibility reduces engineering time during system upgrades or expansions, offering a cost-effective path to enhanced monitoring.

Frequently Asked Questions

What is the linear range of the 330101-00-08-20-02-05 probe?

The linear range is 2 mm (80 mils), starting at approximately 0.25 mm (10 mils) from the target and extending to 2.3 mm (90 mils).

What approvals does the 330101-00-08-20-02-05 have?

It has CSA, ATEX, and IECEx approvals for use in hazardous locations.

What is the recommended gap setting for radial vibration?

The recommended gap setting is -9 Vdc, approximately 1.27 mm (50 mils).

What is the probe tip material?

The probe tip is made of polyphenylene sulfide (PPS) for durability.

Product Support and Availability

The 330101-00-08-20-02-05 is in stock and ready to ship from Petro Auto Tech. Contact our team for pricing and lead times to keep your operations running smoothly.