Bently Nevada 330301-000-011-20-90-00-00 3300 XL High Temp Probe

Product Introduction

The Bently Nevada 330301-000-011-20-90-00-00 belongs to the 3300 XL Series high-temperature proximity transducer family. Engineers design this eddy current sensor for extreme thermal environments. It delivers precise dynamic displacement and vibration measurements on critical rotating machinery. The sensor utilizes a durable ceramic tip and stainless steel case to withstand high temperatures up to +350°C (+662°F).

Technical Specifications

• Brand: Bently Nevada
• Model Part Number: 330301-000-011-20-90-00-00
• Product Series: 3300 XL Series High Temperature Transducer System
• Thread Type: 3/4-16 UNF threads
• Unthreaded Length: 0.0 in (Option 000)
• Overall Case Length: 1.1 in (Option 011)
• Hardline Cable Length: 2.0 meters / 6.6 feet (Option 20)
• Total System Length: 9.0 meters / 30 feet with extension cable (Option 90)
• Cable Armor Option: Without stainless steel armor (Option 00)
• Agency Approval Option: Not required (Option 00)
• Measurement Range: 4.0 mm (160 mils) linear range
• Sensitivity / Scale Factor (ISF): 3.94 V/mm (100 mV/mil) ±9.65% including interchangeability error
• Linearity / DSL: Deviation from best fit straight line less than ±78 µm (±3.1 mils)
• Extended Thermal Linearity: Over 22°C to +350°C, ISF remains within ±30%, DSL within ±0.51 mm (±20 mils)
• Frequency Response: 0 to 6 kHz (+0, -3 dB typical with up to 305 m field wiring)
• Resolution: Sub-micron level micro-inch displacement detection capabilities
• Operating & Storage Temperature: -34°C to +350°C (-30°F to +662°F)
• Environmental Resistance: Ceramic tip handles high thermal stress; AISI 316L SST case resists corrosion
• Noise & Interference Immunity: Balanced differential transmission minimizes electromagnetic interference (EMI)
• Probe DC Resistance (RpROBE): 5.82 Ohms (Center conductor to outer conductor for 2.0m hardline)
• Target & Shaft Requirements: Minimum 30.5 mm (1.2 in) flat target; minimum 152 mm (6.0 in) shaft diameter

System Compatibility

The 330301-000-011-20-90-00-00 probe connects to standard 3300 XL extension cables and Proximitor Sensors. It integrates seamlessly into Bently Nevada 3500 Series and 3300 Series monitoring racks.

Installation Guide

• Mechanical Mounting: Thread the 3/4-16 UNF body into the machine housing tap using proper torque limits.
• Gap Calibration: Set the mechanical gap using a feeler gauge or voltage monitoring at the Proximitor output.
• Cable Routing: Secure hardline cable transitions carefully to avoid tight bend radiuses near the junction.

Commissioning & Maintenance Convenience

Field technicians adjust target gap settings quickly via DC voltage feedback during installation. The consistent interchangeability factor eliminates the need for individual probe recalibration in the field.

Certifications & Approvals

Manufactured strictly in the U.S.A. following rigorous ISO 9001 quality management procedures. This specific configuration uses Option 00 for uncertified general safe-area installations.

Packaging & Warranty Terms

• Packaging List: 1x Bently Nevada 330301-000-011-20-90-00-00 probe with hardline cable.
• Warranty Coverage: Includes a full 12-Month Warranty against manufacturing defects.
• Dispatch & Express Delivery: Ships within 24-48 hours via FedEx, UPS, or DHL express services.

Typical Application Scenarios & Diagnostic Capabilities

Engineers install this probe in extreme high-temperature turbo-machinery environments. Key applications include steam turbine exhaust casings, gas turbine combustor zones, and high-temperature process pumps. The system provides continuous diagnostic tracking for shaft radial vibration, axial position monitoring, and thermal growth measurements.

Global PLC Spare HUB's Insight & Field Experience

Our field engineering team frequently encounters thermal drift issues when standard proximity probes operate near turbine casings. The Bently Nevada 330301-000-011-20-90-00-00 solves this through its high-grade ceramic tip and mineral-insulated hardline construction.

In a recent steam turbine retrofit project, standard probes failed within weeks due to +280°C ambient temperatures. After upgrading to the 3300 XL High Temperature Probe series, the plant achieved continuous shaft position feedback without signal degradation over an 18-month operating cycle. Always verify hardline cable clearance to avoid mechanical fatigue from severe machine vibration.

Ordering & Selection Guide

• Step 1 (Unthreaded Length): Match internal machine casing thickness (Option 000 = 0 inches).
• Step 2 (Case Length): Select total body length for thread engagement (Option 011 = 1.1 inches).
• Step 3 (Hardline Length): Choose high-temperature cable length to exit hot zones (Option 20 = 2.0 meters).
• Step 4 (Total Length): Ensure total probe plus extension cable matches Proximitor calibration (Option 90 = 9.0 meters total).

Frequently Asked Questions (FAQ)

Q: What makes this probe suitable for extreme high-temperature environments?
A: It features a specialized ceramic probe tip and a mineral-insulated hardline cable rated up to +350°C (+662°F).

Q: Can I connect this probe directly to a Proximitor Sensor without an extension cable?
A: No, this 2.0-meter hardline probe requires a matching 7.0-meter extension cable to reach the required 9.0-meter system length.

Q: What target shaft diameter works best with this transducer?
A: Bently Nevada recommends a minimum shaft diameter of 152 mm (6.0 inches) for optimal target geometry.

Q: How fast will my order ship out after payment confirmation?
A: We process and dispatch orders within 24 to 48 hours via FedEx, UPS, or DHL express couriers.

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