Description
Detailed Parameter Table
| Parameter Name | Parameter Value |
| Product Model | Bently Nevada 330881-28-00-86-07-02 |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Product Category | Proximity Transducer Interface Module |
| Input Type | Accepts eddy current probes (5mm-11mm) |
| Output Signal | -4V to -20V DC (linear with gap) |
| Frequency Response | 0 to 10 kHz |
| Power Requirement | -17.5V to -26V DC |
| Operating Temp | -40°C to +85°C |
| Housing | Anodized aluminum |
| Dimensions | 120 × 80 × 40 mm |
| Weight | 450 g |
| Certifications | ATEX, IECEx, SIL 2 |
BENTLY 330881-28-00-86-07-02
Product Introduction
The Bently Nevada 330881-28-00-86-07-02 is a high-performance proximity transducer interface module designed for critical machinery monitoring applications. As part of Bently Nevada’s 3300 XL series monitoring system, this component provides precise measurement of shaft displacement, eccentricity, and position in rotating equipment.
Engineered for reliability in demanding industrial environments, the Bently Nevada 330881-28-00-86-07-02 features advanced signal conditioning and diagnostics capabilities. Its rugged construction and wide operating temperature range make it suitable for installation in harsh conditions including power generation plants, oil refineries, and compressor stations.
The module’s SIL 2 certification ensures it meets stringent safety requirements for machinery protection systems, while its ATEX/IECEx approval allows deployment in hazardous areas.
Core Advantages and Technical Highlights
Precision Measurement:
The Bently Nevada 330881-28-00-86-07-02 delivers highly accurate position measurements with 0.1 mil (2.5 μm) resolution, critical for detecting early-stage machinery problems.
Advanced Diagnostics:
Built-in self-test functions monitor probe health, cable integrity, and module performance, providing early warning of potential issues before they affect measurements.
Flexible Configuration:
Supports all standard Bently Nevada proximity probes (5mm, 8mm, 11mm) with automatic probe recognition and optimal signal conditioning for each type.
Hazardous Area Certified:
ATEX and IECEx approvals for Zone 1/21 hazardous locations ensure safe operation in potentially explosive atmospheres.
Cyclic Redundancy:
Dual-channel architecture with automatic switchover provides continuous monitoring even during module maintenance.
Integration Ready:
Seamless compatibility with Bently Nevada’s System 1* software platform for comprehensive machinery condition monitoring and analysis.
Typical Application Scenarios
Gas Turbine Monitoring:
Precise measurement of shaft position and vibration in power generation turbines, withstanding high-temperature environments near the turbine casing.
Compressor Protection:
Critical monitoring of axial displacement in centrifugal compressors for oil and gas pipeline applications, including offshore platforms.
Hydroelectric Plants:
Monitoring generator shafts in humid environments with reliable performance despite water spray and condensation.
Petrochemical Refineries:
Bearing condition monitoring in FCCU expanders and other critical rotating equipment in classified hazardous areas.
Marine Propulsion:
Shaft alignment monitoring in shipboard propulsion systems, resistant to saltwater corrosion and vibration.
Related Model Recommendations
Bently Nevada 3300/16 – Standard proximity transducer module
Bently Nevada 3300/20 – Keyphasor module for timing reference
Bently Nevada 3300/45 – Temperature monitoring module
Bently Nevada 3300/50 – Communication gateway module
Bently Nevada 3500/42M – Vibration monitoring module
Bently Nevada 3300/25 – Relay output module
Bently Nevada 3300/92 – Dual-channel vibration monitor
Installation, Commissioning and Maintenance
Installation Guidelines:
Mount the Bently Nevada 330881-28-00-86-07-02 in a protected location within 15 meters of the monitored equipment. Use shielded, twisted-pair cables for all connections. Ensure proper grounding to maintain signal integrity in electrically noisy environments.
Commissioning:
Verify probe installation and gap voltage before powering the module. Use the built-in LED indicators and System 1* software to confirm proper operation. Set alarm thresholds according to machinery specifications.
Maintenance:
Perform quarterly inspections of cable connections and module status. Annual calibration verification is recommended. Replace probes showing signs of deterioration or out-of-spec performance.
Service and Guarantee Commitment
Bently Nevada provides a 36-month warranty for the 330881-28-00-86-07-02 module. Comprehensive support includes:
24/7 global technical assistance
On-site calibration services
Repair and refurbishment programs
Firmware updates and security patches
Training programs for operations and maintenance staff
The product is supported by Bently Nevada’s long-term lifecycle management program, with spare parts availability guaranteed for 15 years after product discontinuation.
