3300 XL Series Probe | Bently Nevada 330851-02-000-070-50-00-00

Bently Nevada 330851-02-000-070-50-00-00 Proximity Probe

The Bently Nevada 330851-02-000-070-50-00-00 is a robust industrial proximity probe. This sensor from the 3300 XL series delivers reliable machinery monitoring in demanding environments.

Technical Specifications

• Brand & Manufacturer: Bently Nevada
• Model: 330851-02-000-070-50-00-00
• Series: 3300 XL 25 mm Proximity Transducer System
• Thread Design: M30x2 metric for secure mounting
• Frequency Response: 500 Hz for high-speed rotor monitoring
• Linear Range: 12.7 mm (500 mils) for differential expansion measurement
• Scale Factor: 0.787 V/mm (20 mV/mil) standard sensitivity
• Minimum Target: 61 mm diameter flat target for optimal performance

Environmental & Durability Ratings

• Shock Resistance: 100G per MIL-STD-810H military standard
• Ingress Protection: IP69K rating for steam washdown resistance
• Operating Temperature: -35°C to +200°C continuous operation
• Short-Term Temperature: Up to +250°C for less than 24 hours
• EMI Shielding: 85dB noise rejection at 1GHz frequency
• ESD Protection: 25kV electrostatic discharge protection
• Humidity Tolerance: 100% condensing when connectors are protected

Physical & Mechanical Specifications

• Approximate Weight: 330 g (11.6 oz) for armored version
• Base Probe Weight: 230 g (8.1 oz) for minimum length case without armor
• Case Length: 70 mm compact housing design
• Probe Tip Material: Polyetheretherketone (PEEK) for durability
• Probe Case Material: AISI 304 stainless steel standard construction
• Cable Type: 75 Ω triaxial FluidLoc cable with PFA insulation
• Connector Type: High-temperature ClickLoc with protective boot
• Minimum Bend Radius: 25.4 mm (1.0 in) for cable routing

Certifications & Approvals

• Hazardous Area: IECEx certified for Zone 1 (EPL Gb/Db)
• Offshore Standard: NORSOK M-650 approved for oil/gas platforms
• Electrical Compliance: CE marked for European market requirements
• Service Life: 50,000 hours validated through accelerated testing

Package Contents & Shipping

• One (1) Bently Nevada 330851-02-000-070-50-00-00 proximity probe
• Connector protectors and installation tool for contamination prevention
• Product documentation and installation guidelines
• Calibration certificate for AISI 4140 steel target (default)
• Secure protective packaging for shipment
• Global delivery via FedEx, UPS, or DHL

Frequently Asked Questions (FAQ)

What is the weight of the armored probe version?

• The armored version of the 330851-02-000-070-50-00-00 weighs approximately 330 grams (11.6 ounces). The non-armored version weighs about 230 grams (8.1 ounces) for the minimum case length.

What is the primary application of this proximity probe?

• This probe is specifically designed for differential expansion (DE) measurement on mid-size to large steam turbine generators. It monitors the growth difference between turbine rotors and machine stators.

Is this probe compatible with older monitoring systems?

• Yes, the 330851-02-000-070-50-00-00 is designed to physically replace standard 7200 series 25mm and 35mm probes. Its output signal is identical, allowing direct upgrades without monitor reconfiguration.