Product Overview
The Bently Nevada 128987-130-02-05 3300 XL 8MM Proximity Sensor is engineered for accurate differential expansion (DE) measurement in steam turbine generators. With a precise linear range and reliable output, it enables real-time monitoring of axial movement between turbine rotor and stator, helping prevent thermal-related damage and optimize machine performance.
Technical Specifications
Model Number: 128987-130-02-05
Product Series: Bently Nevada 3300 XL
Module Type: 8 mm Proximity Sensor (25 mm Transducer System)
Weight: 0.2 kg
Dimensions: 20 × 20 × 3 cm
Lead Time: In Stock – available for immediate shipment
HS Code: 8537101190
Product Origin: USA
System Compatibility: TSI Condition Monitoring Systems
Communication Service: Ethernet router compatibility
Linear Range: 12.7 mm (500 mils)
Output Sensitivity: 0.787 V/mm (20 mV/mil)
Applications: Differential expansion measurement, axial movement monitoring in steam turbines
Model Code Breakdown
128987: Base model number representing the sensor family and design.
-130: Specifies mechanical or electrical design variant.
-02: Indicates sensor cable or connector configuration.
-05: Factory option or specific customization.
Understanding each segment ensures precise ordering and system fitment.
Installation Recommendations & Wiring Guide
Mounting: Install transducers on collars or ramps according to OEM specifications for optimal axial position measurement.
Configuration: Use dual sensors on same side of collar for redundancy or opposite sides for enhanced range detection.
Cabling: Connect with factory-supplied cables; ensure shielded wiring routed away from EMI sources.
Calibration: Verify sensor gap and output signal before commissioning to ensure accurate DE measurements.
Maintenance: Regularly check mounting integrity and cable condition to sustain reliable performance.
FAQ — Common Questions
Q: What is the main purpose of this proximity sensor?
A: It measures differential expansion in steam turbine generators to monitor axial movement.
Q: What is its measurement range and sensitivity?
A: Linear range of 12.7 mm with an output of 0.787 V/mm.
Q: Can it be used for turbines with limited collar size?
A: Yes, using ramp targets it can compensate for radial motion and measure extended expansion ranges.
Q: Is this product genuine and readily available?
A: Yes, it is a brand-new genuine Bently Nevada sensor, in stock with fast shipping.
Q: How does dual sensor configuration improve reliability?
A: Placing two sensors on the same collar side ensures redundancy and better system reliability.
For detailed installation instructions and technical support, please consult official Bently Nevada manuals or authorized service representatives.
