3300/15-02-01-02-00-00-00 Product Detailed Specification

I. Product Overview

3300/15-02-01-02-00-00-00 is a dual-channel axial displacement monitoring module of the 3300 series from Bently, belonging to the core supporting equipment of the industrial large-scale rotating machinery condition monitoring system. This module is developed based on the mature eddy current measurement technology, specifically designed for monitoring the axial movement of the rotor, thrust bearing clearance, and axial position changes of the shaft system. It is the core instrument for axial protection of key units such as steam turbines and process compressors. The equipment adopts an industrial standardized modular structure, featuring high operational stability, good measurement linearity, strong anti-interference ability, and supports 24/7 uninterrupted online monitoring. It can accurately capture the micro displacement changes and abnormal axial movement hazards of the unit's shaft system, providing real and effective on-site data for equipment safety interlock, operation status analysis, and preventive maintenance. It is widely used in various industries in continuous industrial production scenarios.

II. Product Basic Characteristics

This product is a standard configuration axial displacement monitoring module of the 3300 series, with a standard control cabinet rail-mounted installation design. The overall structure is compact, occupying less space, and the installation, wiring, maintenance, and replacement operations are convenient. The entire machine strictly follows industrial electrical safety standards and electromagnetic compatibility design standards, capable of adapting to the complex electrical interference environment of factories. The equipment has undergone full-scale calibration of the entire range accuracy, linearity testing, high and low temperature aging tests, and stability tests before leaving the factory. The measurement accuracy, zero point stability, and repeatability all meet the standards of industrial precision monitoring instruments, and after on-site installation, there is no need for complex parameter debugging, and it can be quickly put into normal operation.

The hardware interfaces, electrical protocols, installation dimensions of this module are fully compatible with all modules of the 3300 series. It can be freely combined and assembled with power supply modules, vibration monitoring modules, and communication expansion modules of the same series, supporting system expansion, module replacement, and renovation of old systems. The spare parts are highly versatile, with low long-term operation maintenance costs, and suitable for various working conditions of newly built and renovated units. The equipment supports 7×24-hour long-term continuous operation, with strong resistance to vibration, aging, and temperature and humidity adaptability, meeting the strict operating requirements of industrial key machines without downtime.

III. Core Function Introduction

This module has a dual-channel independent monitoring architecture. The two signal channels are independent and do not interfere with each other. It can simultaneously connect two sets of eddy current displacement sensors and independently collect and process the axial displacement signals of the rotor. The equipment has a professional signal processing circuit that can amplify, filter, reduce noise, perform linear correction, and convert analog signals from the on-site original sensing signals. It effectively filters out electromagnetic noise generated by equipment such as frequency converters and high-voltage motors, eliminates signal interference, and accurately restores the real axial displacement data of the unit, ensuring stable, accurate, and non-drifted measurement values.

The module has complete condition monitoring and alarm functions. It supports users to customize warning thresholds and danger thresholds according to the unit's design parameters, achieving state determination in different levels. When there is abnormal axial displacement deviation, approaching safety limits, or exceeding the limit operation of the unit, the local indicator lights of the module update synchronously, and at the same time, it outputs standard analog signals and switch quantity alarm signals. It can seamlessly connect with DCS, PLC, unit monitoring systems, and safety interlock systems to achieve remote data upload, local status indication, and unit interlock protection linkage. It also has a sensor fault self-check function, which can actively identify probe breakage, line faults, and abnormal signals, promptly feedback monitoring circuit faults, avoiding monitoring failure, and ensuring the reliability of the entire monitoring system.

IV. Core Performance Parameters

The module is compatible with industrial standard DC power supply mode, with stable working voltage suitable for the power environment of industrial instruments, low overall power consumption, controllable temperature rise during long-term continuous operation, without performance attenuation, zero point drift, or system crash and downtime problems. The signal input circuit is specifically designed to be compatible with the Bently 3300 series eddy current displacement sensors. It has high signal matching accuracy, sensitive response, and excellent measurement linearity, enabling precise capture of micrometer-level shaft system displacement changes. It meets the precision monitoring standards for large-scale units. The equipment's standard measurement range is suitable for the axial displacement monitoring conditions of domestic mainstream steam turbine units and process compressor units, covering the normal operation range, abnormal fluctuation range, and fault over-limit range of the units.

The equipment has a fast data refresh rate, providing real-time synchronous feedback of shaft system displacement changes under all operating conditions such as unit start-stop, load variation, and steady operation. The data transmission is without delay or lag. The entire machine has undergone strict electromagnetic compatibility design, with outstanding resistance to electromagnetic interference and industrial frequency interference, and can maintain measurement accuracy and data stability in strong electromagnetic and high-vibration industrial sites. The equipment's working environment is suitable for conventional indoor industrial cabinet conditions, with excellent dustproof, moisture-proof, and aging resistance properties, and a long average trouble-free operation time, with extremely high industrial operation reliability.

V. Adaptation and Supporting System

This module needs to be combined with the original equipment of Bently 3300 series to form a complete monitoring system. It is standardly compatible with the same series eddy current axial displacement probes and dedicated extension cables. The entire sensing circuit impedance matching is precise, and the signal transmission is stable, ensuring the maximum overall measurement accuracy and linearity. On-site, industrial shielded signal cables can be used to complete the long-distance transmission of analog data and alarm signals, and compatible standard cabinet rails, terminal blocks, and other common installation accessories can be used.

The module can be freely combined and integrated with the 3300 series' full range of power units, vibration monitoring units, and communication expansion units. It can be flexibly built into a centralized monitoring system according to the requirements of on-site monitoring points, supporting later expansion of points, function upgrades, and module replacement and renovation. The market availability of supporting accessories is large, and procurement is convenient. The universality and interchangeability are extremely strong, effectively reducing the overall cost of equipment operation, spare parts reserves, and system renovation.

VI. Application Fields and Applicable Equipment

This module is widely used in core industrial fields such as thermal power generation, gas power generation, petrochemicals, coal chemical industry, oil and gas transportation, and metallurgical heavy industry. It is a necessary monitoring equipment for the safety protection of large-scale power units. It is mainly adapted to steam turbine generators, gas turbines, large centrifugal process compressors, reciprocating compressors, large axial flow fans, high-speed heavy pump sets, etc., especially suitable for core units with strict control requirements for shaft system axial clearance, rotor runout, and thrust plate operating status.

The equipment is mainly deployed in steam turbine buildings, power workshops, chemical compressor buildings, oil and gas pressurization pump stations, metallurgical power stations, etc., suitable for all scenarios that require 24/7 online monitoring, configuration of safety interlock protection, and implementation of preventive condition-based maintenance. It can effectively predict and avoid major equipment hazards such as shaft deviation, dynamic friction, and thrust plate damage, ensuring the long-term safe, stable, and continuous operation of the units.