The Bentely Nevada 3500/65 (part number: 145988-02) is the core monitoring module used in the protection system of industrial critical rotating machinery. This module is designed to precisely measure and monitor the axial displacement (Thrust Position) of rotating machinery, and is an important barrier for ensuring the safe and stable operation of large steam turbines, compressors, generators, etc.
Core functions and positioning
Axial displacement monitoring: Continuous monitoring of the axial movement position of the rotor.
Protection function: It provides two levels of threshold settings for alarm (Alert) and danger (Danger). When the displacement exceeds the preset safety limit, the relay will be activated and output will be triggered, causing the machine to stop automatically.
Integrated application: As part of the Bently Nevada 3500 series mechanical protection system. It needs to be installed in the 3500 frame and work in conjunction with the frame’s power supply, communication module, and other monitoring modules (such as vibration and speed modules).
Key performance parameters
Model identification: 3500/65 Axial Displacement Monitoring Module.
Part Number: 145988-02.
Input signal: Receives the signal from the eddy current sensor.
Input range: The standard input range covers -2mm to -18mm or +2mm to +18mm.
Number of channels: Single-channel design.
Alarm setting points: Independent and adjustable Alert (alarm) and Danger (danger) setting points.
Relay output: Each channel provides 2 independent fail-safe relays (one for alarm and one for danger).
Key signal input: Supports key phase input for phase reference.
Range adjustment: The module panel provides zero-point (Zero) and scale (Scale) adjustment potentiometers.
The output shows: The panel LED indicates the status of the channel (normal, bypass, alarm, danger) and the OK status.
Operating Voltage: Standard 24V DC (supplied by the 3500 frame backplate).
Frame compatibility: Specifically designed for the Belite Nevada 3500 series chassis.
Key points for procurement and selection
Compatibility verification: Ensure that the purchased 145988-02 module is fully compatible with the existing or under-construction 3500 system framework models of our factory.
Sensor matching: When purchasing, it is necessary to specify the models of the accompanying eddy current sensor probes and extension cables.
Certification requirements: Determine whether a specific certification version is required based on the project specifications.
Functional requirement: Verify that the single-channel axial displacement monitoring function meets the application requirements.
Application scenario: Suitable for axial position monitoring and protection of large-scale high-speed rotating equipment in industries such as power, petrochemicals, and metallurgy.
The 3500/65 145988-02 module, with its reliability and accuracy, has become the industry standard choice for critical equipment axial displacement protection. Its parameter setting flexibility and the powerful configuration diagnostic capability of the 3500 system meet the safety monitoring requirements of complex industrial environments.
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