Overview

The Bently Nevada 330880-16-75-125-01-02 is a PROXPAC XL proximity transducer. This unit belongs to the Bently Nevada 3300 XL series. It provides non-contact shaft vibration and position measurement. The 330880-16-75-125-01-02 features an 8 mm probe without approvals. Industrial users trust this transducer for machinery protection applications.

This PROXPAC XL system is made in the U.S.A. The housing is IP66 rated for harsh environments. The probe withstands extreme temperatures from -51°C to +177°C. The standoff adapter provides extended mounting flexibility.

Technical Specifications

The 330880-16-75-125-01-02 uses a 3300 XL 8 mm probe without approvals. The probe tip material is Polyphenylene Sulfide (PPS). probe case material is AISI 304 stainless steel. The probe cable is 1 metre length, 75 Ω triaxial with FEP insulation.

Probe Configuration Breakdown

• Probe and Approvals Option (16): 3300 XL 8 mm probe without approvals

• Standoff Adapter Option (75): 7.5 inches

• Probe Penetration Option (125): 125 mm

• Fittings Option (01): One 3/4-14 NPT fitting, two plugs

• Mounting Thread Option (02): 3/4-14 NPT

Measurement Specifications

• Linear Range: 2 mm (80 mils)

• Linear Range Start: Approximately 0.25 mm (10 mils) from target

• Linear Range End: 0.25 mm to 2.3 mm (10 mils to 90 mils)

• Output Voltage Range: Approximately -1 Vdc to -17 Vdc

• Recommended Gap Setting: 1.27 mm (50 mils)

• Incremental Scale Factor (ISF): 7.87 V/mm (200 mV/mil) ±5%

• Frequency Response: 0 to 10 kHz (+0, -3 dB)

• Minimum Target Size: 15.2 mm (0.6 in) diameter (flat target)

• Minimum Shaft Diameter: 50.8 mm (2.0 in)

Electrical Specifications

• Power Requirement: -17.5 Vdc to -26 Vdc without barriers

• Power with Barriers: -23 Vdc to -26 Vdc

• Maximum Current Consumption: 12 mA

• Supply Sensitivity: Less than 2 mV change per volt change

• Output Resistance: 50 Ω

• Field Wiring: 0.2 to 1.5 mm2 (16 to 24 AWG)

• Maximum Field Wiring Length: 305 metres (1000 feet)

Accuracy Specifications

• Deviation from Best Fit Straight Line (DSL): Less than ±0.025 mm (±1 mil)

• Temperature Range for DSL: 0°C to +45°C (+32°F to +113°F)

Environmental and Mechanical Specifications

Temperature Limits

• Probe Operating Temperature: -51°C to +177°C (-60°F to +350°F)

• Note: Exposure below -34°C (-29°F) may cause premature pressure seal failure

Housing and Enclosure Ratings

• Housing Rating: IP66 verified by BASEEFA report T07/0709

• Housing Material: UV resistant, glass-reinforced PPS thermoplastic with conductive fibers

• Sleeve Material: AISI 304 stainless steel

• Outer Sleeve Material: AISI 303 stainless steel

• Sleeve O-Ring Material: Neoprene

• Grounding Liner Material: AISI 304 stainless steel

Probe Mechanical Properties

• Probe Tensile Strength: 330 N (75 lb) maximum between cable and case

• Probe Connector: Gold-plated brass ClickLoc®

Impact and Strength Ratings

• Housing Strength: Supports 912 N (205 lbf) at 38 mm from unsupported end

• Housing Impact Strength (BASEEFA): Two separate 4 Joule impacts at -39°C and 115°C

• Housing Impact Strength (CSA): 7 Joule impact at ambient room temperature

Torque Specifications

• Retaining Nut: 29.5 N·m (260 in·lb)

• Probe Sleeve Locknut: 39.3 N·m (350 in·lb)

Key Features

The 330880-16-75-125-01-02 provides a 2 mm linear range for shaft measurement. The 7.87 V/mm scale factor delivers precise gap readings. The frequency response extends to 10 kHz for vibration monitoring. The system works with up to 305 metres of field wiring.

The 7.5 inch standoff adapter provides extended mounting distance. The 125 mm probe penetration suits deep mounting applications. The probe operates in extreme temperatures from -51°C to +177°C. The IP66 housing rating ensures protection against dust and water.

The ClickLoc® connector provides secure probe connection. The triaxial cable with FEP insulation offers excellent chemical resistance. The 3/4-14 NPT mounting thread matches standard industrial fittings. This version comes without approvals for general industrial use.

The gold-plated brass connector ensures reliable signal transmission. The AISI 304 stainless steel construction resists corrosion. The recommended gap setting of 1.27 mm (50 mils) optimizes linear range performance. The BASEEFA certified housing withstands high impact forces.

Installation Guidelines

Install the 330880-16-75-125-01-02 with proper attention to clearance. Use the 3/4-14 NPT mounting thread for installation. Tighten the retaining nut to 29.5 N·m torque. Tighten the probe sleeve locknut to 39.3 N·m torque.

Connect the probe using the ClickLoc® connector. Use 3-conductor shielded triax cable for field wiring. Recommended field wiring size is 0.2 to 1.5 mm2 (16 to 24 AWG). Do not exceed 305 metres of field wiring length.

Supply power between -17.5 Vdc and -26 Vdc without barriers. For systems with barriers, use -23 Vdc to -26 Vdc. Set the gap to 1.27 mm (50 mils) for optimal performance. Verify the target size is at least 15.2 mm diameter.

Avoid exposing the probe to temperatures below -34°C. This may cause premature pressure seal failure. Ensure the probe is mounted securely to withstand vibration. Use the 3/4-14 NPT fitting with two plugs as supplied.

Package Contents

• Bently Nevada 330880-16-75-125-01-02 PROXPAC XL Proximity Transducer (1 unit)

• 3300 XL 8 mm probe with 125 mm penetration

• 7.5 inch standoff adapter

• 1 metre triaxial cable with FEP insulation

• ClickLoc® gold-plated brass connector

• One 3/4-14 NPT fitting

• Two plugs

• Installation manual

Frequently Asked Questions (FAQ)

1. What is the linear range of the Bently Nevada 330880-16-75-125-01-02?
The 330880-16-75-125-01-02 has a 2 mm (80 mils) linear range. The linear range starts at approximately 0.25 mm (10 mils) from the target. The output voltage ranges from -1 Vdc to -17 Vdc over this range.

2. What is the standoff adapter length on this PROXPAC XL transducer?
The standoff adapter option (75) provides 7.5 inches of extension. The probe penetration is 125 mm. This combination allows mounting in deep or recessed locations.

3. What temperature range can the 330880-16-75-125-01-02 probe withstand?
The probe operates from -51°C to +177°C (-60°F to +350°F). Exposing the probe to temperatures below -34°C (-29°F) may cause premature failure of the pressure seal.

4. What power supply does this Bently Nevada proximity transducer require?
The 330880-16-75-125-01-02 requires -17.5 Vdc to -26 Vdc without barriers. With barriers, the range is -23 Vdc to -26 Vdc. Maximum current consumption is 12 mA.

5. Does this PROXPAC XL version have hazardous area approvals?
No. The probe and approvals option (16) specifies a 3300 XL 8 mm probe without approvals. This version is suitable for general industrial use where hazardous area certifications are not required.