Bently Nevada 330980-71-05 3300 XL NSv Front Sensor

The Bently Nevada 330980-71-05 3300 XL NSv Rear Sensor is a non-contact eddy current proximity probe designed for small or confined machinery spaces where standard probes cannot fit. As part of the 3300 XL NSv (Narrow Side-view) system, the Rear Sensor allows measurements from the rear access point of a machine, providing highly accurate shaft vibration and position monitoring.

Key Features

• Narrow side-view (NSv) Rear Sensor for limited access installations

• High sensitivity: 7.87 V/mm (200 mV/mil)

• Compatible with 3300 NSv Proximitor Sensors

• CE, CSA, and UL certifications for hazardous locations

• Robust construction for extreme temperatures and vibration

• Factory-calibrated for consistent accuracy

Technical Specifications

Industry Applications

• Oil & Gas – turbines, compressors, pumps, and motors

• Power Generation – steam, gas, and hydro turbines

• Petrochemical Plants – rotating machinery in refineries and chemical plants

• Pulp & Paper – critical pumps and process motors

• Mining & Metals – heavy-duty rotating equipment

• Marine & Offshore – propulsion systems and auxiliary rotating equipment

Advantages

• Rear access configuration – ideal for machines with limited front access

• Compact NSv design – fits in tight spaces without compromising accuracy

• High accuracy and reliability – ensures precise long-term monitoring

• Harsh environment resistance – suitable for extreme temperatures and vibrations

• Certified for hazardous areas – CE, CSA, UL compliance

• Seamless integration – works with 3300 NSv Proximitor Sensors and 3500 series monitors

Frequently Asked Questions (FAQ)

Q1: What is the main difference between the 330980-71-05 and 330980-70-05?

The 71-05 is a Rear Sensor for rear-access installation, while the 70-05 is a Front Sensor for front-access mounting.

Q2: What is the sensitivity of the Rear Sensor?

It is 7.87 V/mm (200 mV/mil).

Q3: What is the linear measurement range?

0.25 mm to 2.0 mm (10 to 80 mils).

Q4: What is the operating temperature range?

-35 °C to +177 °C.

Q5: Is it compatible with standard Bently Nevada monitoring systems?

Yes, it works with 3300 NSv Proximitor Sensors and integrates with 3500 series monitors.

Q6: Can it be used in hazardous areas?

Yes, it has CE, CSA, and UL certifications.

Q7: What is the probe diameter and length?

5 mm diameter × 32 mm length.

Q8: What industries typically use this sensor?

Oil & Gas, Power Generation, Petrochemical, Pulp & Paper, Mining, and Marine applications.

Q9: How is it mounted?

Using threaded installation in bearing housings or designated rear-access points.

Q10: Why choose the Rear Sensor over the Front Sensor?

It enables monitoring in machines where front access is limited or obstructed, maintaining precise vibration measurement.