Bently Nevada 330902-36-89-05-01-05 3300 NSv Probe

Product Introduction

The Bently Nevada 330902-36-89-05-01-05 is a precision 3300 NSv series eddy-current proximity probe. It performs non-contact measurement of shaft vibration, position, and speed in rotating machinery. This sensor outputs a linear voltage proportional to the gap between the probe tip and the target surface. Consequently, it plays a key role in predictive maintenance and machine protection strategies.

This model offers a compact and versatile design. It features a Polyphenylene sulfide (PPS) probe tip and an AISI 304 stainless steel case for excellent durability. The probe cable is a 75 Ω coaxial type with fluoroethylene propylene (FEP) insulation, ensuring signal fidelity. Moreover, the 1/4-28 UNF thread enables easy installation in tight spaces. This particular configuration includes a 0.5 metre total length and a Miniature coaxial ClickLoc connector with a protector. Additionally, it holds Multiple Approvals for diverse industrial applications.

Technical Specifications

This section details the core technical parameters of the 3300 NSv Proximity Probe.

Electrical Properties

The Bently Nevada 330902-36-89-05-01-05 demonstrates consistent electrical performance. The DC resistance from the center conductor to the outer conductor (RPROBE) measures 4.0 ± 0.5 ohms for the 0.5 metre length. This stable resistance value supports accurate and repeatable measurements. Furthermore, the probe cable utilizes a 75 Ω coaxial design with FEP insulation to minimize signal degradation and electromagnetic interference.

Mechanical Dimensions

The mechanical configuration of the 3300 NSv probe offers flexibility for various installations. The unthreaded length option is 3.6 inches, while the overall case length is 8.9 inches. For the 1/4-28 UNF thread option, the maximum length of thread engagement is 0.375 inches. The total probe length is 0.5 metre (20 inches) . Moreover, the probe weight ranges approximately from 14 to 150 grams (0.5 to 5.3 oz) , making it suitable for lightweight applications.

Material Composition

Durable materials ensure long-term reliability. The probe tip is constructed from Polyphenylene sulfide (PPS) , a high-performance engineering thermoplastic. The probe case is manufactured from AISI 304 stainless steel (SST) , offering excellent corrosion resistance. The cable insulation uses fluoroethylene propylene (FEP) . Additionally, a Viton O-ring provides the sealing function between the tip and the case.

Environmental and Mechanical Parameters

The Bently Nevada 330902-36-89-05-01-05 performs reliably under demanding conditions.

Temperature Ranges

The probe operates and stores within a temperature range of -52°C to +177°C (-62°F to +351°F) . However, exposing the probe to temperatures below -34°C (-30°F) for a sustained period may cause premature failure of the pressure seal. The device also meets multiple temperature classifications for explosive atmospheres (EPL Ga, Gc, Dc) with varying ambient temperature limits.

Torque Specifications

Correct torque application is essential for proper installation. For the 1/4-28 UNF thread, the maximum rated torque is 7.3 N•m (65 in•lb) , while the recommended torque is 5.1 N•m (45 in•lb) . For the connector, tighten it finger-tight only, with a maximum of 0.565 N•m (5 in•lb) .

Pressure and Sealing

The 3300 NSv probe seals differential pressure between the tip and case effectively. A Viton O-ring accomplishes this sealing function. Please note that these probes do not undergo pressure testing before shipment. Meanwhile, the probe DC resistance remains a critical parameter for system calibration.

Installation Guidelines

Installing the Bently Nevada 330902-36-89-05-01-05 requires careful attention to several key factors.

First, clean the target surface thoroughly to remove any debris or contaminants. The standard target material for 3300 NSv probes is typically AISI 4140 steel. Next, check the thread engagement precision carefully. For the 1/4-28 UNF thread, the maximum engagement length is 0.375 inches. Specifically, apply the recommended torque of 5.1 N•m (45 in•lb) to avoid damaging the probe or the mounting hardware.

Then, route the cable with caution. Maintain a minimum bend radius of 25.4 mm (1.0 inch) to prevent damage to the internal conductors. When connecting the Miniature coaxial ClickLoc connector, tighten it finger-tight only. Never exceed the maximum torque of 0.565 N•m (5 in•lb) . Finally, verify the total probe length of 0.5 metre suits your specific application requirements.

Packaging List

Your shipment for the Bently Nevada 330902-36-89-05-01-05 will include the following items:

• 1 x Bently Nevada 3300 NSv Proximity Probe (Model: 330902-36-89-05-01-05)

• 1 x Connector protector for the Miniature coaxial ClickLoc connector

We securely package the product to prevent damage during transit. We carefully coil the probe cable to maintain the specified minimum bend radius. All shipments go out via major carriers such as FedEx, UPS, or DHL.

Frequently Asked Questions (FAQ)

Q1: What is the primary application for the Bently Nevada 330902-36-89-05-01-05?
A1: This probe performs non-contact vibration and position monitoring of rotating machinery shafts. It provides essential data for predictive maintenance and machine protection systems.

Q2: What is the total length of the probe cable for model 330902-36-89-05-01-05?
A2: This specific model has a total length of 0.5 metre (20 inches) . However, the 3300 NSv series offers other lengths such as 1, 5, or 7 metres to accommodate different installation needs.

Q3: What materials are used in the construction of this 3300 NSv probe?
A3: The probe tip is made of Polyphenylene sulfide (PPS) . The probe case is constructed from AISI 304 stainless steel (SST) . The cable uses a 75 Ω coaxial design with fluoroethylene propylene (FEP) insulation and a Viton O-ring for sealing.

Q4: What are the torque requirements for installing this Bently Nevada probe?
A4: For the 1/4-28 UNF thread, the recommended installation torque is 5.1 N•m (45 in•lb) , with a maximum of 7.3 N•m (65 in•lb) . Tighten the connector finger-tight only, with a maximum of 0.565 N•m (5 in•lb) .

Q5: What agency approvals does the 330902-36-89-05-01-05 carry?
A5: This model carries Multiple Approvals (Option 05), making it suitable for various international industrial applications. It also meets temperature classifications for EPL Ga, Gc, and Dc explosive atmospheres.