3300/12-01-20-00 Product Description

Product Introduction

3300/12-01-20-00 is a Beneffi 3300 series shaft displacement monitoring module, which is the core unit of the large-scale rotating machinery protection and condition monitoring system. This module is based on the mature eddy current signal processing technology and is specifically used for monitoring key parameters such as the axial position and axial movement of the rotating equipment's shaft. It has a high overall integration degree, a stable structure, and excellent anti-electromagnetic interference ability and environmental adaptability. The equipment can operate continuously in complex industrial conditions for a long time, accurately capture the tiny displacement changes of the shaft system, and give early warnings of potential faults such as shaft end rubbing, abnormal axial clearance, and displacement exceeding limits. It effectively avoids equipment component damage and unplanned shutdowns, and is an important monitoring device for ensuring the safe operation of heavy power equipment such as steam turbines and compressors. Basic Information

This product belongs to the Bentley 3300 modular monitoring system. The model identification clearly indicates the channel configuration, hardware specifications and function type. The equipment adopts an industrial standard plug-in rack structure, and its size is fully compatible with the 3300 series universal installation rack. Installation, disassembly, on-site debugging and later maintenance operations are simple and convenient. The on-site wiring is neat and efficient. The entire machine strictly follows industrial electrical safety standards and electromagnetic compatibility standards. The enclosure has dust-proof and slight mechanical impact-resistant protection performance. It can operate stably in conventional working environments such as industrial cabinets, control rooms, and device sites. The module adopts a unified industrial power supply system for the system, and can be directly paired with the same series power module for use. The electrical interface is standardized, and it can quickly connect to the entire monitoring, alarm and control loop, with good compatibility and scalability.

Functions and Positioning

This module is a dedicated shaft displacement monitoring unit, mainly connecting the front-end eddy current sensor to complete the reception, amplification, filtering, shaping, linear conversion and other processing of the original sensing signal, and real-time collect and output the axial displacement value of the rotating shaft. The module supports uploading the processed standard analog signals to the upper-level control system, data recorder, on-site display instrument, to achieve real-time display, continuous storage and historical traceability of monitoring data. The equipment has multiple levels of customizable alarm thresholds and fault diagnosis logic, which can accurately identify displacement over-limit, sensor breakage, signal abnormality, line fault and other working conditions. Once the operating parameters exceed the preset safety range, it immediately triggers relay alarm output, promptly alerting maintenance personnel to carry out hazard排查 and maintenance work. The product is mainly applied in the daily condition inspection of units， early fault warning， and control of the operating status of the shaft system， providing comprehensive protection for the safety of rotating machinery shaft systems.

Core Performance Parameters

The module is optimized for the input of eddy current probe signals， with high signal acquisition sensitivity， capable of effectively filtering out on-site noise， harmonics and various electromagnetic interferences， ensuring pure and stable signal transmission. The measurement range is set according to the mainstream industrial large and medium-sized rotating machinery shaft displacement monitoring requirements， with excellent full-range linearity， high repeatability measurement accuracy， and extremely low data drift during long-term uninterrupted operation， ensuring the measurement results are true and reliable. It has strong electromagnetic anti-interference capability， capable of resisting the influence of large-power motors， frequency converters， and high-voltage power lines in the field. The equipment supports 7×24-hour continuous operation， and the average downtime-free working time meets the standards of industrial-grade equipment. The signal output is a general industrial analog signal， which can seamlessly connect to various mainstream industrial control systems， alarm devices and data acquisition equipment. The working temperature and humidity range covers the conventional industrial indoor and cabinet environment， with a wide temperature and humidity tolerance range， and excellent environmental adaptability.

General Adaptable Accessories

The front sensing part can be used with 3300 series standard eddy current probes， extension cables， preamplifiers and other components. The entire sensing and monitoring equipment has a high matching degree and stable signal transmission. For on-site installation， basic auxiliary materials such as shielded signal cables， standard terminal blocks， module fixing clips can be selected to meet the wiring， wiring and equipment fixation requirements. In terms of system integration， it can be freely combined with 3300 series system racks， power modules， vibration monitoring modules， speed monitoring modules， relay output modules， communication modules， etc.， to build an integrated complete monitoring system according to the on-site monitoring points and functional requirements. The interface， wiring accessories and wearables of this module all adopt the 3300 series general specifications， making spare parts procurement and replacement convenient， and daily maintenance and calibration can be completed using conventional industrial electrical tools.

Applicable Equipment Domains The product is widely applied in industrial fields such as thermal power generation, petrochemical industry, coal chemical industry, metallurgy, and large-scale equipment manufacturing. It is compatible with various key large and medium-sized rotating mechanical equipment such as steam turbine generators, gas turbines, centrifugal compressors, large exhaust fans, flue gas turbines, high-pressure large pump sets, and heavy-duty gear sets. It is mainly deployed at production sites such as the main plant of power plants, chemical production areas, metallurgical power workshops, and power machine rooms of industrial and mining enterprises. It provides 24/7 online monitoring of shaft displacement, fault early warning, and safety protection for core power equipment for continuous operation.