Bently Nevada 330906-02-12-50-02-05 – 3300 NSv Reverse Mount Probe

The Bently Nevada 330906-02-12-50-02-05 is a 3300 NSv reverse mount probe. Specifically, this probe features 3/8-24 UNF threads. It is made in the U.S.A. Furthermore, this probe has increased chemical resistance compared to the 3300 RAM probe. Consequently, it suits many process compressor applications. The side-view characteristics are also superior to those of the 3000-series 190 probe. This advantage applies when gapping at the same distance from the probe target.

Ordering Configuration and Options

• Product Number: 330906-02-12-50-02-05.

• Thread Type: 3/8-24 UNF threads.

• Total Length Option (50): 5.0 meters (16.4 feet).

• Connector Option (02): Miniature coaxial ClickLoc connector with standard cable.

• Agency Approval Option (05): Multiple Approvals.

• Made In: U.S.A.

• Therefore, the Bently Nevada 330906-02-12-50-02-05 offers complete ordering flexibility.

Thread and Probe Case Configurations

The 3300 NSv probe comes in varying probe case configurations. These include armored and unarmored 1/4-28, 3/8-24, M8X1 and M10X1 probe threads. Specifically, the reverse mount 3300 NSv probe comes standard with either 3/8-24 or M10X1 threads. This model uses 3/8-24 UNF threads. The maximum length of thread engagement for M10x1 is 15 mm. For reference, the probe case material is AISI 304 stainless steel (SST).

ClickLoc Connector System

All components of the transducer system have gold-plated brass ClickLoc connectors. Specifically, ClickLoc connectors lock into place securely. Consequently, they prevent the connection from loosening over time. Furthermore, the patented TipLoc molding method provides a robust bond between the probe tip and the probe body. Thus, the Bently Nevada 330906-02-12-50-02-05 delivers exceptional reliability.

Electrical Specifications and DC Resistance

• Probe Length: 5.0 meters total.

• DC Resistance (RPROBE): 5.3 ± 0.7 ohms from center conductor to outer conductor.

• Linear Range: 1.5 mm (60 mils) total.

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

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

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

• Recommended Gap Setting: 1.0 mm (40 mils).

• Consequently, proper gapping ensures accurate measurements.

Field Wiring Requirements

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

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

• Recommended Field Cable: Three-conductor shielded triad cable.

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

• Signal Rolloff: See frequency response graphs (Figure 16 and Figure 17) for high frequencies.

• Therefore, longer field wiring lengths require careful consideration of signal rolloff.

Mechanical Specifications

• Probe Tip Material: Polyphenylene sulfide (PPS).

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

• Reverse Mount Probe Maximum Torque: 22.6 N•m (200 in•lb).

• Reverse Mount Probe Recommended Torque: 7.5 N•m (66 in•lb).

• System Weight (Typical): Approximately 14 to 150 g (0.5 to 5.3 oz).

• Probe Case Thread: M10x1 has 15 mm maximum thread engagement.

• Thus, the Bently Nevada 330906-02-12-50-02-05 must be torqued correctly for optimal performance.

Temperature and Pressure Ratings

• Operating Temperature: -52°C to +177°C range.

• Operating Temperature (F): -62°F to +351°F range.

• Storage Temperature: -52°C to +177°C range.

• Storage Temperature (F): -62°F to +351°F range.

• Low Temperature Warning: Exposure below -34°C (-30°F) for sustained periods may cause premature pressure seal failure.

• Pressure Sealing: 3300 NSv probes seal differential pressure between probe tip and case.

• Sealing Material: Viton O-ring.

• Moreover, observe the low temperature warning to maximize probe life.

Installation Guide

First, prepare the mounting surface with the correct 3/8-24 UNF threads. Then, apply recommended torque of 7.5 N•m (66 in•lb). Do not exceed the maximum torque of 22.6 N•m (200 in•lb). After that, connect the miniature coaxial ClickLoc connector to the extension cable. Push the connector until it locks audibly into place. Next, set the probe gap to the recommended 1.0 mm (40 mils). Then, verify the linear range from 0.25 to 1.75 mm (10 to 70 mils). Subsequently, route field wiring using three-conductor shielded triad cable. Keep total field wiring length under 305 meters (1,000 feet). For reference, avoid sustained exposure below -34°C (-30°F). As a result, the Bently Nevada 330906-02-12-50-02-05 will provide reliable reverse mount proximity measurements.

Packaging List

• One Bently Nevada 330906-02-12-50-02-05 reverse mount probe

• One miniature coaxial ClickLoc connector (attached)

• One Viton O-ring pressure seal (installed)

• One protective shipping cap

• One installation and torque specification guide

Common FAQs

Q1: What thread type does the Bently Nevada 330906-02-12-50-02-05 use?
A: This probe uses 3/8-24 UNF threads. Specifically, reverse mount probes come standard with 3/8-24 or M10X1 threads. Therefore, verify your mounting thread compatibility before ordering.

Q2: What is the recommended gap setting for this NSv probe?
A: The recommended gap setting is 1.0 mm (40 mils). The linear range extends from 0.25 to 1.75 mm (10 to 70 mils). Consequently, proper gapping ensures operation within the -1 to -13 Vdc range.

Q3: What torque should I apply when installing this probe?
A: The recommended torque is 7.5 N•m (66 in•lb). However, the maximum rated torque is 22.6 N•m (200 in•lb). Therefore, always stay within these limits to avoid damage.

Q4: What is the temperature range for the Bently Nevada 330906-02-12-50-02-05?
A: The operating temperature ranges from -52°C to +177°C. Similarly, storage temperature ranges from -52°C to +177°C. However, sustained exposure below -34°C (-30°F) may cause premature seal failure.

Q5: What approvals does this probe carry?
A: The 05 agency approval option indicates multiple approvals. For reference, the Bently Nevada 330906-02-12-50-02-05 suits various industrial applications. Consult the factory for specific approval details.