Overview

The Bently Nevada 3300 XL 50 mm Proximity Probe (model 330876-01-10-01-00) is designed for extreme industrial environments, especially in steam turbines and machinery monitoring. Known for its exceptional durability, this probe is capable of handling high temperatures, with continuous operation at up to 200°C (392°F) and brief exposure to temperatures as high as 250°C (482°F). It features a robust design with a FluidLoc cable and high-temperature seals, ensuring the probe remains protected in harsh conditions.

Key Features:

• Temperature Resistance: Operates from -35°C to +120°C (-31°F to +248°F), with a maximum intermittent temperature of 250°C (482°F).
• Accuracy: Linear range from 1.3 mm to 29.2 mm (50 mils to 1150 mils) with an average scale factor of 394 mV/mm (10 mV/mil).
• Durability: Features both front and rear seals to prevent moisture ingress, making it ideal for steam turbine environments.
• Connector Protection: Comes with ClickLoc connectors and disposable connector protector installation tool.
• Connector Compatibility: Includes high-temperature ClickLoc connectors with removable collars for easy installation in tight spaces.

Technical Specifications:

• Brand: Bently Nevada
• Model: 3300 XL 50 mm Proximity Probe
• Product Number: 330876-01-10-01-00
• Weight: 0.59 kg (1.3 lbs)
• Power Requirements: -17.5 Vdc to -26 Vdc without barriers, -23 Vdc to -26 Vdc with barriers.
• Output Resistance: 50 Ω
• Linear Range: 27.9 mm (1100 mils), begins at 1.3 mm (50 mils) from the target.
• Average Scale Factor (ASF): 394 mV/mm (10 mV/mil) nominal.
• Deviation from Best Fit Line (DSL): Less than ±0.74 mm (±29 mils).
• System Performance over Extended Temperatures: DSL remains within ±2.03 mm (±80 mils) across temperature ranges from -35°C to +120°C.

Extension Cable:

• Material: 75 Ω triaxial, PFA insulated FluidLoc cable.
• Capacitance: 69.9 pF/m (21.3 pF/ft) typical.
• Field Wiring Compatibility: 0.2 to 1.5 mm² (16 to 24 AWG). Recommended cable is three-conductor shielded triad cable.

Recommended Minimum Target Size: 102 mm (4.0 inches) diameter flat target.

Applications: This proximity probe is ideal for high-precision monitoring in steam turbines, rotating equipment, and other heavy machinery. Its reliability under high-temperature conditions makes it a go-to choice for critical asset protection and monitoring systems.

FAQs:

• What makes the 3300 XL 50 mm probe suitable for high temperatures?
  • The probe features high-temperature FluidLoc cables and seals that protect against moisture, making it reliable in extreme conditions.
• Can this probe be used with other Bently Nevada products?
  • Yes, it is compatible with Bently Nevada Proximitor sensors for vibration monitoring systems.
• What type of connector does the probe use?
  • It uses ClickLoc connectors, which ensure easy installation and secure connections, even in tight spaces.
• How does the probe perform over extended temperatures?
  • The system performance maintains accuracy with a deviation of less than ±2.03 mm (±80 mils) across a wide temperature range.
• Is the 3300 XL 50 mm probe suitable for steam turbines?
  • Yes, it is specifically designed to withstand harsh steam turbine environments, including exposure to high temperatures and vibrations.