The Bently Nevada 128987-130-02-05 3300 XL 8 mm Proximity Sensor is part of the 3300 XL 25 mm Transducer System, engineered for differential expansion (DE) measurement in mid-size to large steam turbine generators. It delivers a linear range of 12.7 mm (500 mils) with an output of 0.787 V/mm (20 mV/mil), ensuring reliable monitoring of axial movement caused by rotor and stator expansion differences.
This sensor supports flexible configurations, including dual transducer setups on the same or opposite sides of a collar, and ramp target arrangements for extended DE ranges. Its robust design ensures accuracy and durability in demanding thermal growth monitoring applications.
Technical Specifications
Parameter
Value
Model Number
128987-130-02-05
Module Type
3300 XL 25 mm Proximitor Sensor
Manufacturer
Bently Nevada
Condition
Brand New
Product Range
3300 Proximity Transducer System
Weight
0.2 kg
Dimension
20 × 20 × 3 cm
HS Code
8537101190
Minimum Order Quantity
1
Origin
USA
System
TSI
Lifecycle Status
Active
Linear Range
12.7 mm (500 mils)
Output Sensitivity
0.787 V/mm (20 mV/mil)
Application
Differential Expansion (DE) monitoring
Functional Highlights
The 128987-130-02-05 sensor provides precise DE measurements for steam turbine generators.
Linear range of 12.7 mm ensures accurate monitoring of axial movement.
Output sensitivity of 0.787 V/mm supports reliable signal transmission.
Compatible with dual transducer setups for redundancy and improved reliability.
Ramp target configurations extend DE monitoring range for unique geometries.
Robust design ensures consistent performance in high-temperature turbine environments.
Applications and Compatibility
The Bently Nevada 128987-130-02-05 Proximity Sensor is ideal for turbines and compressors requiring accurate thermal growth monitoring. It integrates seamlessly into the 3300 XL Transducer System, supporting predictive maintenance programs and critical asset protection.
Its compatibility with collar and ramp target setups provides flexibility for diverse machine designs. Industries such as power generation and petrochemical benefit from its precision, durability, and redundancy options for long-term reliability.
