Bently Nevada 330701-00-25-10-11-05 11mm Probe

3300 XL 11 mm Proximity Probe - Bently Nevada 330701

Product Introduction

The Bently Nevada 330701-00-25-10-11-05 belongs to the trusted 3300 XL series, renowned for precise shaft vibration and position monitoring. This 3300 XL 11 mm Proximity Probe delivers non-contact measurement for critical turbomachinery like compressors and turbines. Its robust design ensures reliable performance under extreme conditions. Next, we explore its technical features in detail.

This model includes a 1/2-20 UNF thread, a 2.5-inch overall case length, and a 1.0-meter triaxial cable. The Bently Nevada 330701 probe uses a Miniature coaxial ClickLoc connector for secure installation. Additionally, its FluidLoc cable option adds extra protection in wet environments. Therefore, this sensor offers both durability and precision for demanding industrial sites.

Technical Specifications

The 330701-00-25-10-11-05 includes a probe tip made of Polyphenylene sulfide (PPS), which resists chemicals and wear. Furthermore, the probe case uses AISI 304 stainless steel (SST) for corrosion resistance. Its 75 Ω triaxial cable features fluoroethylene propylene (FEP) insulation, ensuring signal integrity over long runs.

Specifically, the probe’s DC resistance from the center conductor to the outer conductor (RPROBE) measures 5.9 ± 0.5 ohms. Moreover, the operating and storage temperature range spans -51°C to +177°C (-60°F to +351°F). Meanwhile, the probe seals differential pressure between tip and case using a Viton O-ring. Consequently, this design prevents process fluid ingress effectively.

Mechanical and Environmental Parameters

The Bently Nevada 330701 probe uses a 1/2-20 UNF thread with a maximum engagement length of 0.750 inches. Its recommended installation torque is 15.2 N•m (133 in•lb), while the maximum rated torque is 45.2 N•m (400 in•lb). For the connector, finger-tight is recommended, with a maximum torque of 0.565 N•m (5 in•lb).

Additionally, the minimum bend radius for the cable is 25.4 mm (1.0 inch), whether armored or not. The probe operates in pressures that suit most turbomachinery applications. However, note that exposing it below -34°C (30°F) may degrade the pressure seal prematurely. Therefore, consider your site’s ambient conditions carefully.

For storage, keep the 3300 XL 11 mm Proximity Probe within its rated temperature range. The unit ships with a weight of just 0.17 kg, making handling straightforward. Its compact dimensions also simplify retrofitting into existing machinery.

Installation Guidelines

First, ensure the target surface is clean and within the probe’s specified gap range. Use a suitable gap voltage or mechanical setup tool for calibration. Next, thread the 330701-00-25-10-11-05 carefully into the mounting hole, using the recommended torque. Over-torquing may damage the thread or case.

Then, connect the Miniature coaxial ClickLoc connector to the extension cable. Finger-tighten the connector, then apply no more than 0.565 N•m (5 in•lb). Afterwards, route the cable with a bend radius larger than 25.4 mm to avoid stress. Finally, verify the system’s output voltage matches the expected gap.

For optimal performance, avoid routing the cable near high-voltage sources. Use the FluidLoc feature to resist moisture ingress in wet areas. Additionally, consider using a connector protector to shield the connection from debris. Following these steps ensures reliable, long-term operation.

Packaging List

• Bently Nevada 330701-00-25-10-11-05 Proximity Probe (1 unit)

• Miniature coaxial ClickLoc connector with connector protector

• FluidLoc cable assembly (integral)

• Installation instruction sheet (printed)

• Anti-static protective bag

Shipping: FedEx, UPS, DHL

Frequently Asked Questions

Q1: What is the total length of the Bently Nevada 330701-00-25-10-11-05?
A: Its total length is 1.0 metre (3.3 feet), as indicated by the "10" option code. The case length is 2.5 inches.

Q2: Can this 3300 XL 11 mm Proximity Probe be used in high-pressure applications?
A: It seals differential pressure using a Viton O-ring, but is not pressure-tested before shipment. Contact the factory for custom pressure testing.

Q3: What is the recommended torque for installing the 1/2-20 UNF thread?
A: Bently Nevada recommends 15.2 N•m (133 in•lb) for installation, with a maximum of 45.2 N•m (400 in•lb).

Q4: Is the probe cable replaceable or integral?
A: The cable is integral to the Bently Nevada 330701 probe. For damaged cables, you must replace the whole probe assembly.

Q5: What connector type does this model use?
A: It uses a Miniature coaxial ClickLoc connector with a connector protector and FluidLoc cable, ensuring a secure and moisture-resistant connection.