Bently Nevada 330901-22-10-10-01-00 3300 NSv Proximity Probe

Product Introduction

The Bently Nevada 330901-22-10-10-01-00 belongs to the 3300 NSv series, which stands for "narrow space version." This probe offers a compact solution for vibration and position monitoring where standard 11 mm or 8 mm probes cannot fit. Its 1/4-28 UNF thread and shorter case length make it ideal for bearing housings, gearboxes, and tight axial positions. Meanwhile, the probe retains the same robust construction as larger models, with a PPS tip and 304 SST case. Additionally, the 1.0 metre coaxial cable with FEP insulation ensures signal stability in high-temperature environments. Many maintenance teams prefer this model for retrofit projects on older equipment with limited access points.

Technical Specifications

The 330901-22-10-10-01-00 probe uses a 75 Ω coaxial cable with FEP insulation, offered in a 1.0 metre total length. Its DC resistance from center conductor to outer conductor measures 4.2 ± 0.5 ohms, providing predictable output scaling. The unthreaded length option is 2.2 inches, while the overall case length is 1.0 inch. For connectivity, this probe includes a miniature coaxial ClickLoc connector with a protector, paired with standard cable (option 01). Agency approval is not required (option 00), making this model suitable for domestic or non-certified installations. Specifically, the probe tip (PPS) resists wear and chemical attack, while the AISI 304 SST case offers excellent corrosion protection for indoor and outdoor use.

Mechanical & Environmental Parameters

This Bently Nevada probe operates across a wide temperature range of -52°C to +177°C (-62°F to +351°F) for both operation and storage. However, sustained exposure below -34°C (-30°F) may shorten the Viton pressure seal's service life. The probe case thread is 1/4-28 UNF with a maximum engagement length of 0.375 inches. For installation torque, the maximum rated value is 7.3 N•m (65 in•lb), while the recommended torque is 5.1 N•m (45 in•lb). The connector-to-connector torque should be finger tight only. Moreover, the probe weight ranges from 14 to 150 g (0.5 to 5.3 oz), depending on cable length and armor options. The Viton O-ring seals differential pressure between tip and case, but each unit is not pressure tested before shipment.

Installation Guidelines

Before mounting the 330901-22-10-10-01-00, always clean the 1/4-28 threaded hole to remove any oil or metal chips. First, thread the probe by hand until the tip reaches the initial gap setting. Next, use a torque wrench to apply 5.1 N•m (45 in•lb) – do not exceed 7.3 N•m to avoid stripping the fine threads. Remember to route the coaxial cable with a minimum bend radius of 25.4 mm (1.0 inch) to prevent attenuation or breakage. Additionally, secure the ClickLoc connector by finger-tightening only; over-torquing may damage the connector protector. For systems requiring longer reach, you can pair this probe with Bently Nevada extension cables up to 7 metres total. Finally, avoid storing the probe below -34°C for extended periods, as this can degrade the O-ring material.

Packaging List

• 1 x Bently Nevada 330901-22-10-10-01-00 3300 NSv Proximity Probe

• 1 x Miniature coaxial ClickLoc connector protector (pre-attached)

• 1 x Standard coaxial cable assembly (1.0 metre)

• Quick-start installation card with torque values

Note: No mounting brackets, certificates, or warranty documents are included.

Frequently Asked Questions (FAQ)

1. Where is the Bently Nevada 330901-22-10-10-01-00 typically installed?
This probe is perfect for small-frame turbines, high-speed spindles, and gearbox shaft monitoring where standard 5/8-18 probes are too large to fit.

2. Can the 1.0 metre cable of this 3300 NSv probe be extended?
Yes, you can add Bently Nevada extension cables (coaxial type) to achieve total system lengths of 0.5, 1, 5, or 7 metres as per your needs.

3. Is the 330901-22-10-10-01-00 compatible with existing 3300 XL drivers?
Compatibility depends on your driver's scaling. This NSv probe works with Bently Nevada 3300 NSv proximity systems; check your driver's input range for 4.2 ohm probe resistance.

4. What happens if I over-torque the 1/4-28 threads on this probe?
Over-torquing can strip the fine threads or crack the SST case, leading to loose mounting or signal drift. Always follow the 5.1 N•m recommendation.

5. Does the 330901-22-10-10-01-00 require special cable routing?
Keep the coaxial cable away from high-voltage lines and maintain a 25.4 mm bend radius minimum. Also, avoid sharp edges that could cut the FEP insulation.