330191-00-16-90-05 | Bently Nevada 3300 XL 8 mm ETR Probe

Product Overview

The Bently Nevada 330191-00-16-90-05 is a 3300 XL 8 mm ETR proximity probe engineered for precise rotating machinery vibration and position monitoring. This model features a 3/8-24 UNF thread, a 9.0 meter (29.5 feet) total length, and comes without armor. It carries CSA, ATEX, and IECEx approvals, making it suitable for hazardous area installations.

Building on the proven 3300 XL platform, this probe incorporates patented TipLoc and CableLoc molding methods. These innovations deliver a more robust bond between the probe tip and body, plus 330 N (75 lbf) pull strength on the cable. The result is a sensor that withstands harsh industrial environments while maintaining measurement integrity.

Technical Specifications

Key parameters for the 330191-00-16-90-05 include:

Total Length: 9.0 meters (29.5 feet)

Thread Size: 3/8-24 UNF

Overall Case Length: 1.6 inches

Minimum Unthreaded Length: 0.0 inches

Agency Approvals: CSA, ATEX, IECEx

Probe Tip Material: Polyphenylene sulfide (PPS)

Probe Case Material: AISI 303 or 304 stainless steel

Cable Type: 75Ω triaxial, FEP insulated (standard) or PFA insulated (extended temperature)

Supply Voltage: -17.5 Vdc to -26 Vdc (nonincendive), -23 Vdc to -26 Vdc with barriers

Output Resistance: 50 Ω

Probe DC Resistance: 9.87 Ω ± 0.50 (for 9.0 m length)

Maximum Connector Torque: 0.565 N•m (5 in•lbf)

The probe operates with a nominal sensitivity of less than 2 mV change per volt change in input voltage, ensuring stable output. Its robust construction includes a Viton® O-ring seal to prevent differential pressure issues between the tip and case.

Industry Applications

The 330191-00-16-90-05 is ideal for vibration monitoring on turbomachinery, compressors, pumps, and electric motors. Its 8 mm tip size and rugged design make it suitable for applications where physical abuse or high temperatures are a concern. The extended temperature range cable option (PFA insulated) allows operation in environments up to 232°C, as per the temperature classification table.

With CSA, ATEX, and IECEx approvals, this probe is ready for installation in potentially explosive atmospheres. The 9.0 meter cable length provides flexibility for routing to junction boxes or monitors, reducing the need for extension cables in many setups.

Installation & Setup Guidance

Proper installation is critical for accurate readings. Follow these guidelines:

Mount the probe with the specified thread engagement (maximum 0.563 inches) to ensure secure fit.

Apply the maximum connector torque of 0.565 N•m (5 in•lbf) to avoid damaging the gold-plated connectors.

Verify the cable is routed without sharp bends or excessive tension. The CableLoc design provides 330 N pull strength, but avoid exceeding this limit.

For systems using extension cables, ensure the total length matches the calibration requirements (e.g., 9.0 m total). One-meter systems do not use an extension cable.

If the FluidLoc option is not selected, ensure the cable entry point is sealed to prevent oil or liquid ingress.

Always refer to the installation drawing (e.g., 140979 for nonincendive circuits) and follow the manufacturer's instructions for hazardous area wiring.

Maintenance & Reliability

The 3300 XL probe is designed for long-term reliability with minimal maintenance. The PPS tip and stainless steel case resist corrosion and physical damage. However, periodic inspection is recommended:

Check the probe tip for wear or contamination, especially in abrasive environments.

Inspect the cable for cuts, abrasions, or kinks that could affect signal quality.

Verify connector integrity and torque periodically, especially after any maintenance work on the machine.

Monitor the probe's DC resistance (should be 9.87 Ω ± 0.50) to detect internal degradation.

Following these simple steps helps avoid unplanned downtime and extends the service life of the probe, delivering strong ROI over time.

Compatibility & Integration

This probe is part of the Bently Nevada 3300 XL family and is designed to work with Bently Nevada monitors and extension cables. When used with BN extension cables and connected to BN proximity transducers, the entity parameters are met for intrinsic safety. The 75Ω triaxial cable ensures compatibility with standard Bently Nevada monitoring systems.

Buying Guide

Before ordering the 330191-00-16-90-05, verify the following:

Confirm the total length (9.0 m) meets your installation requirements.

Ensure the thread type (3/8-24 UNF) matches your mounting arrangement.

Check if you need the armored version (this model is without armor) or the FluidLoc option.

Review the agency approval requirements for your site (CSA, ATEX, IECEx).

BluePLC Industrial offers this probe as new and original in factory packing, backed by a 12-month warranty. Contact our team to confirm availability and lead times. We are your trusted partner for genuine Bently Nevada parts.

For complete technical specifications and installation guidance, please contact BluePLC Industrial.