Product Overview

The Bently Nevada 330906-02-12-10-02-00 is a 3300 NSv Reverse Mount Probe manufactured in the USA. Therefore, this probe offers increased chemical resistance compared to the 3300 RAM probe. Consequently, the 330906-02-12-10-02-00 suits many process compressor applications. In addition, the side-view characteristics are superior to those of the 3000-series 190 probe. As a result, you get more accurate measurements when gapping at the same distance from the probe target. The reverse mount design comes standard with 3/8-24 UNF threads. Furthermore, all components feature gold-plated brass ClickLoc connectors. As a result, these connectors lock into place and prevent loosening from vibration.

Ordering Information and Model Breakdown

The Bently Nevada 330906-02-12-10-02-00 follows a specific ordering code structure.

Technical Specifications

This section details the core parameters of the Bently Nevada 330906-02-12-10-02-00.

General Specifications

• Manufacturer: Bently Nevada

• Product Number: 330906-02-12-10-02-00

• Product Type: 3300 NSv Reverse Mount Probe

• Series: 3300 NSv

• Country of Origin: Made in U.S.A.

• Thread Type: 3/8-24 UNF

Probe DC Resistance

• Probe Length: 1.0 meter

• Resistance (RPROBE): 4.2 ± 0.5 ohms (center conductor to outer conductor)

Linear Range and Gap Settings

• Linear Range: 1.5 mm (60 mils)

• Linear Range Start: Approximately 0.25 mm (10 mils) from target

• Linear Range End: 0.25 to 1.75 mm (10 to 70 mils)

• Output Voltage Range: Approximately -1 to -13 Vdc

• Recommended Gap Setting: 1.0 mm (40 mils)

Mechanical Specifications

• Probe Tip Material: Polyphenylene sulfide (PPS)

• Probe Case Material: AISI 304 stainless steel (SST)

• Maximum Thread Engagement (M10x1): 15 mm

Torque Ratings for Reverse Mount Probes

System Weight

• Probe Weight Range: Approximately 14 to 150 grams (0.5 to 5.3 oz)

• Typical Weight for 1.0m Probe: Approximately 120 grams (4.2 oz)

Temperature Range

• Operating Temperature: -52°C to +177°C (-62°F to +351°F)

• Storage Temperature: -52°C to +177°C (-62°F to +351°F)

• Low Temperature Warning: Sustained exposure below -34°C (-30°F) may cause premature pressure seal failure

Pressure Specifications

• Pressure Seal Material: Viton O-ring

• Sealing Function: Seals differential pressure between probe tip and case

Field Wiring Specifications

• Wire Size Range: 0.2 to 1.5 mm² (16 to 24 AWG)

• Wire Size with Ferrules: 0.25 to 0.75 mm² (18 to 23 AWG)

• Recommended Cable: Three-conductor shielded triad cable

• Maximum Field Wiring Length: 305 meters (1,000 feet) between Proximitor Sensor and monitor

• High Frequency Rolloff: See frequency response graphs for signal degradation with longer cables

Installation Guide

Follow these steps to install the Bently Nevada 330906-02-12-10-02-00 correctly.

1. Prepare Mounting Hole: First, ensure the 3/8-24 UNF threaded hole is clean and undamaged.

2. Apply Lubricant: Next, apply anti-seize compound to the probe threads for easier installation.

3. Hand Tighten Probe: Then, thread the 330906-02-12-10-02-00 into the mounting hole by hand.

4. Torque to Specification: After that, tighten to 7.5 N•m (66 in•lb) recommended torque.

5. Connect Cable: Meanwhile, attach the miniature coaxial ClickLoc connector until it locks.

6. Set Gap: Finally, adjust the probe gap to 1.0 mm (40 mils) for optimal performance.

The 330906-02-12-10-02-00 requires careful attention to torque limits. Therefore, do not exceed 22.6 N•m (200 in•lb) maximum rated torque. In addition, avoid sustained low temperatures below -34°C to protect the pressure seal. Consequently, proper installation ensures long-term reliability and measurement accuracy.

Package List

The package includes the following physical items.

• Bently Nevada 330906-02-12-10-02-00 reverse mount probe (1 piece)

• Miniature coaxial ClickLoc connector (attached to cable)

• Viton O-ring pressure seal (pre-installed)

• Product label with part number and ordering codes

Note: The Proximitor Sensor is not included with this probe. Mounting hardware and anti-seize compound are sold separately. No calibration certificate is provided with this probe.

Frequently Asked Questions (FAQ)

1. What is the length of the 330906-02-12-10-02-00 probe?
The Bently Nevada 330906-02-12-10-02-00 has a total length of 1.0 meter (39 inches). Therefore, the ordering code position 10 indicates this length option. Consequently, this probe suits applications requiring moderate cable runs. In addition, the DC resistance is 4.2 ± 0.5 ohms for this specific length.

2. What thread type does this reverse mount probe use?
The Bently Nevada 330906-02-12-10-02-00 uses 3/8-24 UNF threads. Therefore, the ordering code position 02 indicates this thread option. In addition, reverse mount probes are also available with M10x1 threads. As a result, always verify your mounting hole thread before ordering.

3. What is the recommended gap setting for this probe?
The Bently Nevada 330906-02-12-10-02-00 has a recommended gap setting of 1.0 mm (40 mils). Therefore, this gap provides optimal linear range performance. Specifically, the linear range extends from 0.25 mm to 1.75 mm (10 to 70 mils). Consequently, the output voltage ranges from approximately -1 to -13 Vdc at these gaps.

4. What is the maximum torque for the 330906-02-12-10-02-00?
The Bently Nevada 330906-02-12-10-02-00 has a maximum rated torque of 22.6 N•m (200 in•lb). However, the recommended torque is only 7.5 N•m (66 in•lb). Therefore, always use the lower recommended value for installation. Otherwise, exceeding the maximum torque may damage the probe case or threads.

5. Can this probe operate at very low temperatures?
The Bently Nevada 330906-02-12-10-02-00 has an operating range down to -52°C. However, sustained exposure below -34°C (-30°F) may cause premature failure of the pressure seal. Therefore, consider alternative probes for continuous ultra-low temperature applications. As a result, the Viton O-ring seal becomes the limiting component in extreme cold.

6. What connector type does the 330906-02-12-10-02-00 use?
The Bently Nevada 330906-02-12-10-02-00 uses a miniature coaxial ClickLoc connector. Therefore, this connector locks into place and prevents loosening from vibration. In addition, all components in the transducer system feature gold-plated brass ClickLoc connectors. Consequently, the connection remains secure even in high-vibration environments.

Related Accessories

Enhance your 3300 NSv monitoring system with these compatible parts.

• Proximitor Sensor: Bently Nevada 3300 XL NSv Proximitor Sensor for signal conditioning

• Extension Cable: Bently Nevada 3300 XL extension cable for longer distances

• Mounting Hardware: Bently Nevada 3300 NSv mounting nuts and washers

• Anti-Seize Compound: Bently Nevada recommended lubricant for thread installation

• Shielded Triad Cable: Three-conductor shielded cable for field wiring up to 305 meters

Always use genuine Bently Nevada components with the 330906-02-12-10-02-00. Therefore, third-party cables or connectors may cause signal degradation or connection failures. In addition, verify thread compatibility before ordering. Consequently, using authentic parts ensures optimal measurement accuracy and system reliability.