Bently Nevada 330172-16-42-10-01-00 3300 5mm Proximity Probe

Description

330172-16-42-10-01-00 specifies a 3300 5mm Proximity Probe equipped with a 1/4-28 UNF-2A thread, protective stainless steel armor, a 1.6-inch unthreaded length, and a 4.2-inch overall case length. This configuration is built with a 1.0-meter (3.3 feet) cable terminated in a gold-plated miniature coaxial ClickLoc connector with an integrated fluorosilicone connector protector. Unlike basic non-armored configurations, this armored variant provides mechanical protection against debris, abrasion, and pinch hazards in tight industrial envelopes, and it is ordered without agency approvals (Option 00).

This eddy-current proximity measurement sensor is used in the 3300 5 mm Transducer System to provide an output voltage directly proportional to the gap between the probe tip and a target conductive surface. With a 5.2 mm tip diameter, this probe fits into spaces too restricted for standard 8 mm probes, such as constrained thrust bearing pads. It operates interchangeably with other 3300 5 mm or XL components without requiring manual field calibration, though its peak dynamic characteristics are optimized when paired with a matching 3300 XL Proximitor Sensor and XL extension cable.

Features

• Standard 1/4-28 UNF-2A threaded case with protective AISI 302 or 304 stainless steel armor and FEP outer jacket.
• Unthreaded length of 1.6 inches combined with a 4.2-inch overall case length for precise positioning.
• Integrated miniature coaxial ClickLoc male connector with a factory-installed fluorosilicone connector protector to guard against moisture and contamination.
• Standard coaxial FEP-insulated cable with a total length of 1.0 meter (3.3 feet).
• Patented TipLoc molding process establishing a highly robust bond between the PPS plastic probe tip and the steel body.

Applications

• Shaft vibration and axial position measurement on industrial rotating machinery with space constraints.
• Radial vibration and oil-film thrust bearing clearance monitoring on steam turbines, compressors, and high-speed pumps.
• Speed and Keyphasor phase reference measurements where mounting clearances are limited.

Ordering Information

Technical Specifications

Installation Guidelines

• Ensure that the probe case is torqued between 5.1 N-m (45 in-lb) and 7.3 N-m (65 in-lb) maximum during installation to prevent thread or housing damage.
• Maintain a minimum bend radius of 25.4 mm (1.0 in) for the armored extension cable to avoid signal degradation or armor stress.
• Keep the unthreaded length clear of surrounding metal structures by at least 15.2 mm (0.6 in) to prevent side-view interference with the eddy-current field.
• Verify the connectors are hand-tightened until a distinct "click" is felt; do not use pliers unless connecting a non-XL stainless steel connector.

Compliance and Certifications

• CE Mark
• RoHS compliant (Directive 2011/65/EU)
• Electromagnetic Compatibility (EMC) Directive 2014/30/EU (EN 61000-6-2, EN 61000-6-4)
• Note: This specific SKU utilizes the -00 approval option, meaning it is not certified for hazardous area zones.