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

I. Product Introduction

The Bentley 3300/16-03-01-02-00-00-02 belongs to the 3300 industrial condition monitoring series under Baker Hughes. It is a dual-channel XY/GAP vibration and shaft clearance monitoring module, mainly developed for various large-scale rotating machinery in the industrial sector. This module can simultaneously achieve continuous online monitoring of two paths of vibration and shaft and bearing clearances, effectively identifying typical equipment faults such as rotor imbalance, misalignment of the shaft system, bearing wear, and deviation of the shaft position. The product integrates data acquisition, real-time display, hierarchical alarm, analog output, fault self-diagnosis, and remote communication functions. It adopts a standard modular design and can be installed in the 3300 series chassis, with strong anti-electromagnetic interference capability, stable and reliable operation, and is widely used in key units of power, petrochemical, metallurgy, water supply and other industries, providing support for equipment condition monitoring, fault early warning, and safety interlock.

II. Basic Information

This product is manufactured by Bentley Nevada and belongs to the 3300 industrial condition monitoring series. The model is 3300/16-03-01-02-00-00-02. The equipment type is a dual-channel radial vibration and shaft clearance integrated monitor. The core functions include dual-channel vibration amplitude measurement, gap voltage collection, calculation of the average position of the shaft, output of over-limit alarms, analog signal 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 200 mV/mil, suitable for mainstream sensing devices in the field. It is installed in a 19-inch standard rack and can be directly embedded in the same series monitoring chassis. The product complies with CE electromagnetic compatibility standards and can operate stably and reliably in industrial sites with high dust content, complex electromagnetic environments, and wide temperature variations.

III. Functions and Positioning

The module is equipped with two independent measurement channels that are electrically isolated from each other. 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 device, or separately monitor the parameters of two different rotating devices. The two sets of data are independently calculated and output with alarm signals. The equipment continuously collects the gap voltage between the shaft and the bearing and converts it to the average operating position of the shaft, achieving dual monitoring of vibration and shaft position, and comprehensively reflecting the overall operating condition of the rotor and the bearing.

The equipment is equipped with a warning and danger two-level alarm mechanism. The alarm threshold and alarm delay of each channel can be customized through the local panel or the upper-level monitoring software. When the monitoring value exceeds the set range, the corresponding status indicator light on the panel lights up, and the relay is driven to output a switch signal, which can be connected to the on-site sound and light alarm device and the unit interlock system to complete hierarchical safety protection. The module supports single-channel or dual-channel bypass functions. During sensor calibration, line maintenance, and equipment maintenance stages, the alarm output can be temporarily shielded without affecting the normal operation of the rest of the system.

An integrated complete fault self-diagnosis circuit is provided, which can monitor 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, promptly alerting the maintenance personnel to carry out fault troubleshooting. The equipment is equipped with a sensor signal buffer output interface, which can be connected to oscilloscopes, data acquisition instruments, etc., for on-site signal verification, function debugging, and in-depth fault analysis. This model is equipped with standard analog output functions, which can upload monitoring data to the central control system, meeting the requirements of conventional industrial automation integration, without additional industry-specific certification or built-in safety barrier configuration.

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

The full-scale range of vibration measurement is 0 to 250 micrometers peak-to-peak, and the measurement accuracy is ±1% of the full scale. The gap voltage measurement range is -2V to -22V DC, and the voltage measurement accuracy is ±0.1V. The display resolution of the panel is 0.1 micrometers and 0.1V DC, with clear and precise readings. The power supply can be selected as -18V DC or -24V DC. The module is equipped with 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 operate normally. 

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 and 1A, supporting the switching between open and closed modes. The alarm delay time can be programmed within the range of 0 to 10 seconds, which can filter instantaneous interference signals and reduce false alarms. The analog output is a standard industrial signal, with good output stability, and can be directly connected to PLC, DCS, etc. systems for remote data collection.

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

VII. Model Code Explanation

3300 is the overall code of the 3300 series of Beckert, 16 represents the XY/GAP dual-channel vibration and shaft gap monitor, 03 represents the full-scale vibration measurement range of 0 to 250 micrometers peak-to-peak, 01 represents the standard 3300/7200 probe system, with a standard sensitivity of 200mV/mil, 02 represents the standard analog output configuration, the first 00 represents no additional industry-specific certification, the second 00 represents no built-in safety barrier, and the last 02 represents the hardware version and regular additional function configuration.

VIII. Applicable Equipment Fields

The power industry can be applied to steam turbine generator sets, induced draft fans, blowers, 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, and complete sets of refining and chemical units, etc. of continuous operation of key rotating equipment. The metallurgical industry is used for blast furnace blowers, rolling mill units, dust removal fans, etc. of equipment for online monitoring. It can also be applied to large water pumps in water supply systems and various medium-high-speed rotating machinery in industrial and mining enterprises, providing reliable support for equipment condition assessment, early fault warning, and safety interlock shutdown.

IX. Installation and Maintenance Key Points

The equipment is installed in a standard rack, and sufficient space is reserved between the modules during assembly to ensure ventilation and heat dissipation, avoiding temperature accumulation that affects the equipment performance. When wiring, strictly distinguish between the A and B signal channels, the positive and negative poles of the power supply, the analog output terminals and the communication terminals. Follow the marking specifications for wiring to prevent incorrect or reverse connections from causing faults. It is recommended to perform channel accuracy calibration using original factory tools every six months. After calibration, lock the parameters to avoid unauthorized personnel modifying the settings at will.

During daily maintenance, keep the equipment panel and the internal of the cabinet clean to prevent dust and oil from entering the module. Regularly inspect all wiring terminals and promptly tighten loose lines to avoid signal abnormalities due to poor contact. When the equipment gives a fault prompt or abnormal alarm, gradually locate the problem by first checking the sensors and connection lines, and then testing the monitoring module itself. When using the low-frequency working mode, do not apply it to rapid start-stop units to prevent monitoring data from deviating. Simultaneously, keep the analog signal lines and communication lines as far away as possible from strong power cables to reduce the impact of electromagnetic interference on signal transmission. This model has no additional safety barriers or special certifications. During use, please do not disassemble or modify the hardware privately.