330191-00-26-10-00 | Bently Nevada 3300 XL 8mm Proximity Probe

Product Overview

The Bently Nevada 330191-00-26-10-00 is a precision 3300 XL 8 mm ETR proximity probe engineered for reliable vibration and position monitoring in critical rotating machinery. As part of the trusted 3300 XL series, this probe delivers accurate, repeatable measurements that help you detect shaft vibration, axial position, and eccentricity before they lead to costly downtime.

This model features a 3/8-24 UNF thread, a 2.6-inch overall case length, and a 1.0-meter total probe length. It is supplied without armor and without agency approval, making it a straightforward choice for standard industrial applications. The probe is factory-new, sealed in original packaging, and backed by a 12-month warranty from BluePLC Industrial.

Key Technical Specifications

Every parameter below is taken directly from the manufacturer's data sheet, ensuring you get accurate information for your engineering decisions:

Model: 330191 - 3300 XL 8 mm ETR Probe, 3/8-24 UNF thread, without armor

Overall Case Length: 2.6 in

Total Probe Length: 1.0 meter (3.3 feet)

Unthreaded Length: 0.0 in (minimum)

Probe Tip Material: Polyphenylene sulfide (PPS)

Probe Case Material: AISI 303 or 304 stainless steel (SST)

Standard Cable: 75Ω triaxial, FEP insulated, available in 0.5, 1, 1.5, 2, 3, 5, or 9 meters

Extended Temperature Range Cable: 75Ω triaxial, PFA insulated, available in 0.5, 1, 1.5, 2, 5, or 9 meters

Armor (optional): Flexible AISI 302 or 304 SST with FEP outer jacket

Tensile Strength: 330 N (75 lbf) probe case to probe lead; 270 N (60 lbf) at probe lead to extension cable connectors

Connector Material: Gold-plated brass or gold-plated beryllium copper

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

Probe Case Thread: 3/8-24, maximum thread engagement 0.563 in

Probe Weight: 323 g/m (11.4 oz)

Power Requirement: -17.5 Vdc to -26 Vdc (nonincendive circuit per drawing 140979, 12 mA max consumption; -23 Vdc to -26 Vdc with barriers)

Sensitivity: Less than 2 mV change in output voltage per volt change in input voltage

Output Resistance: 50 Ω

Nominal Probe DC Resistance (RPROBE): 7.59 ± 0.50 Ω for 1.0 m probe

Temperature Classification (Probe Only): T1 -55°C to +232°C, T2 -55°C to +177°C, T3 -55°C to +120°C, T4 -55°C to +80°C, T5 -55°C to +40°C

Industry Applications

The 330191-00-26-10-00 is ideal for monitoring vibration and position on turbines, compressors, pumps, and electric motors. Its robust PPS tip and stainless steel case withstand harsh environments, while the 8 mm design provides a thicker encapsulation for improved durability against physical abuse.

In petrochemical plants, refineries, and power generation facilities, this probe delivers the accuracy you need for predictive maintenance programs. By catching abnormal vibration early, you can schedule repairs during planned outages instead of reacting to unexpected failures — a direct boost to your bottom line.

Installation & Setup Guidance

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

Mount the probe with the specified 3/8-24 UNF thread, ensuring the thread engagement does not exceed 0.563 in.

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

For one-meter systems, no extension cable is required — the probe connects directly to the monitor.

Verify the power supply meets the -17.5 Vdc to -26 Vdc requirement (or -23 Vdc to -26 Vdc with barriers) to maintain linear operation.

If using the optional FluidLoc cable, ensure it is properly sealed to prevent oil leakage.

Maintenance & Reliability

Regular inspection of the probe and cable is recommended to ensure long-term reliability. Check for physical damage, especially at the probe tip and cable connections. The patented TipLoc and CableLoc designs provide a robust bond and 330 N (75 lbf) pull strength, reducing the risk of failure due to vibration or handling.

Because the probe is not pressure-tested prior to shipment, verify the sealing O-ring (Viton®) is intact before installation in pressurized environments. Follow the manufacturer's guidelines for periodic testing and calibration to maintain measurement accuracy.

Selection Guide & Purchasing Advice

When ordering the 330191-00-26-10-00, confirm the total probe length (1.0 m), thread type (3/8-24 UNF), and whether you need optional armor or the FluidLoc cable option. If your application requires agency approvals, note that this model is configured as "Not required."

BluePLC Industrial supplies this probe as new, original factory stock with a 12-month warranty. Contact our team to verify current availability and to discuss your specific monitoring requirements. We are your trusted partner for genuine Bently Nevada parts.