Bentley 3300/16-03-01-02-00-00-00 Product Description

I. Product Introduction

The Bentley 3300/16-03-01-02-00-00-00 is a dual-channel XY/GAP vibration and shaft clearance monitoring module of the Bentley Nevada 3300 series, manufactured by Baker Hughes. It is specifically designed for large industrial rotating machinery. This module can simultaneously perform online monitoring of the radial vibration and shaft clearance of two independent measurement points. It can capture real-time fault characteristics such as rotor imbalance, misalignment of the shaft system, bearing wear, and deviation of the shaft position. The module integrates data acquisition, local display, hierarchical alarm, analog output, self-diagnosis of faults, and remote communication. The product adopts a standard modular structure, is compatible with the 3300 series system chassis, has excellent electromagnetic compatibility, and operates stably and reliably. It is widely used in key power units of industries such as power, petrochemicals, metallurgy, and water treatment, providing core support for daily condition monitoring, early fault warning, and safety interlock protection of equipment.

II. Basic Information

This product is manufactured by Bentley Nevada and belongs to the 3300 industrial condition monitoring series. The model is 3300/16-03-01-02-00-00-00. The equipment type is a dual-channel radial vibration and shaft clearance integrated monitor. Its main functions include dual-channel vibration amplitude measurement, shaft clearance voltage collection, calculation of the average position of the shaft, output of over-limit alarms, standard analog transmission, hardware self-diagnosis, and remote parameter management. The equipment is compatible with 3300 XL, 7200 series eddy current probes and their accompanying preamplifiers. The standard probe sensitivity is 200mV/mil, matching mainstream sensing equipment in industrial sites. The entire machine is installed in a 19-inch standard rack, and can be directly installed in the same series monitoring chassis. The product complies with the CE electromagnetic compatibility standard and can work continuously in complex industrial sites with multiple dust, strong electromagnetic interference, and large temperature variations.

III. Functions and Positioning

The module is equipped with two completely isolated independent measurement channels. The signals between the channels do not interfere with each other. It can simultaneously monitor the radial vibration in the X and Y directions of a single rotating equipment, or separately monitor the operating parameters of two different units. The two sets of data are independently calculated, and the alarm and output logic are independent. While detecting the vibration amplitude, the module continuously collects the gap voltage between the shaft and the bearing, converts it into the average operating position of the shaft, achieving dual monitoring of vibration and shaft position, and comprehensively grasping the overall operating condition of the rotor and bearing. This makes up for the shortcomings of a single monitoring method.

The equipment is equipped with two-level warning and danger alarm functions. The alarm threshold and alarm delay of each channel can be flexibly set through the local panel or the upper-level monitoring software. When the monitoring parameters exceed the preset limit, the corresponding status indicator light on the panel lights up synchronously, and the relay outputs a switch signal. It can be connected to on-site sound and light alarm devices and the unit interlock system to achieve hierarchical safety protection. The module supports single-channel or dual-channel bypass operation. During sensor calibration, line maintenance, and equipment maintenance, the alarm output can be temporarily shielded without affecting the normal operation of other system functions, ensuring the uninterrupted operation of the monitoring system.

The module is equipped with a complete fault self-diagnosis circuit, which can detect sensor breakage, line short circuit, abnormal input signals, and hardware faults of the module itself. When an abnormality occurs, the operating status indicator light goes out, providing a clear reminder for maintenance personnel to carry out fault troubleshooting. The module is reserved for a signal buffer output interface for external detection equipment such as oscilloscopes and data acquisition instruments, used for on-site signal verification, equipment debugging, and in-depth analysis of faults. This model is equipped with standard analog output, which can upload monitoring data to PLC, DCS and other automation control systems. There is no additional industry-specific certification or built-in safety barrier. It is a general standard configuration version.

IV. Core Performance Parameters

The input signal of the equipment is the gap voltage output by the eddy current preamplifier. The reference voltage is -24V DC. The two input channels adopt high input impedance design to effectively avoid signal attenuation during transmission. The frequency response is divided into two working modes. The high-frequency mode has a frequency range of 4Hz to 4000Hz, suitable for various high-speed rotating mechanical equipment; the low-frequency mode has a frequency range of 1Hz to 600Hz, suitable for low-speed units. The low-frequency mode is not recommended for equipment with an acceleration rate exceeding 1000rpm/s, to avoid data distortion.

The full-scale range of vibration measurement is 0 to 250 micrometers peak-to-peak, with a measurement accuracy of ±1% of the full scale. The gap voltage measurement range is -2V to -22V DC, with a voltage measurement accuracy of ±0.1V. The display resolution of the equipment panel is 0.1 micrometers and 0.1V DC, and the readings are precise and intuitive. The power supply can be -18V DC or -24V DC. The module has an independent current-limiting protection circuit, and the maximum power consumption of the entire machine does not exceed 5W. The power supply voltage fluctuates within the range of ±10% of the rated value, and the equipment can maintain stable operation.

The alarm system is divided into two levels: warning and danger. Each channel is independently configured. The rated parameters of the relay contacts are 24V DC, 1A, supporting on-off mode switching. The alarm delay time can be programmed within the range of 0 to 10 seconds, effectively filtering instantaneous interference signals and reducing the probability of false alarms. The analog output is a standard industrial signal, with good output stability, and can be directly connected to various central control systems for remote data collection.

In terms of environmental adaptability, the normal operating temperature range of the equipment is -40℃ to +70℃, the storage temperature range is -52℃ to +105℃, the applicable relative humidity is 5% to 95%, and the operating environment requires no condensation. The front of the equipment is equipped with an LED digital display, which can freely switch to view the vibration values and gap voltages of the two channels. It is also equipped with independent status indicator lights such as operation, bypass, warning, and danger. It integrates RS-485 communication interface, which can be connected to the system host to complete remote parameter configuration, real-time data reading, and alarm status monitoring.

V. Model Code Explanation

3300 represents the 3300 overall monitoring product series of Betley, 16 represents the XY/GAP dual-channel vibration and shaft gap monitor, 03 represents the full-scale range of vibration measurement is 0 to 250 micrometers peak-to-peak, 01 represents the standard 3300/7200 probe system is compatible, with a standard sensitivity of 200mV/mil, 02 represents the standard analog output function is equipped, the first 00 represents no additional industry-specific certification, the second 00 represents no built-in safety barrier, the last 00 is the standard basic version, without additional customized functions and hardware modifications.

VI. Applicable Equipment Fields

The power industry is mainly applied to steam turbine generator sets, boiler induced draft fans, supply fans, large circulating water pumps, etc. of power station core auxiliary equipment. The petrochemical industry is suitable for centrifugal compressors, screw compressors, high-temperature process pumps, refining and chemical complete sets of equipment, etc. of continuous operation key rotating equipment. The metallurgical industry can be used for blast fans of blast furnaces, rolling mill units, dust removal fans, etc. of equipment for online status monitoring. It is also applicable to large-scale circulating pumps in water supply systems and various medium and high-speed rotating machinery in industrial and mining enterprises. It provides reliable data and control support for equipment condition assessment, early fault warning, and safety interlock shutdown.

VII. Installation and Maintenance Key Points

The equipment is installed in a 19-inch standard rack. During assembly, sufficient spacing is reserved between modules to ensure ventilation and heat dissipation, and to prevent accumulated heat from affecting the equipment's operating performance. During wiring operations, strictly distinguish between A and B signal channels, positive and negative power poles, analog output terminals, and communication terminals, and connect according to the marking specifications to avoid incorrect connections, reverse connections, which may cause equipment damage or abnormal monitoring data. It is recommended to complete channel accuracy calibration using original factory standard probes and calibration tools every six months. After calibration, lock the parameters to prevent unauthorized personnel from随意 modifying the settings.

During daily operation and maintenance， keep the equipment panel and internal cabinet clean. Prevent dust and oil from invading the modules. Regularly inspect all wiring terminals and promptly tighten loose lines to avoid signal jumps caused by poor contact. When the equipment triggers fault prompts or abnormal alarms， follow the sequence of first checking sensors， connection lines， and then detecting the monitoring module body to gradually locate the problem. When using the low-frequency working mode， do not apply it to fast-start and stop units to prevent monitoring data from deviating. Simulated signal lines and communication lines should be as far away as possible from strong power cables to reduce the impact of electromagnetic interference on signal transmission. This model is a general standard configuration. During use， do not disassemble or modify the hardware structure privately.