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

I. Product Introduction

The Bentley 3300/16-03-02-00-00-00-00 is a dual-channel XY/GAP vibration and shaft clearance monitoring module of the Bentley Nevada 3300 series under Baker Hughes, designed specifically for large industrial rotating machinery. This module integrates dual-channel radial vibration monitoring and shaft position clearance monitoring functions, capable of simultaneously collecting data from two measurement points and real-time monitoring rotor vibration, bearing clearance changes, shaft misalignment, etc., to predict rotor imbalance, equipment misalignment, bearing wear and other faults. The product has strong compatibility, stable operation, and is compatible with the entire 3300 monitoring cabinet system, widely used in key units of power, petrochemical, metallurgy and other industries, providing condition monitoring and safety interlock protection for equipment operation.

II. Basic Information

The manufacturer of this product is Bentley Nevada, belonging to the classic 3300 industrial monitoring series, with the model number 3300/16-03-02-00-00-00-00. The equipment type is a dual-channel radial vibration and shaft clearance integrated monitor. Its core functions include dual-channel vibration measurement, shaft clearance voltage collection, shaft position calculation, over-limit alarm and status self-diagnosis. The equipment is compatible with 3300 XL series, 7200 series eddy current probes and preamplifier systems, and is suitable for conventional industrial probe sensitivity specifications. It adopts a standard 19-inch rack-mounted installation structure and can be directly installed in the same series system cabinet. The entire machine has excellent electromagnetic compatibility performance, complies with CE-related standards, and can work stably in complex industrial electromagnetic environments and dusty field conditions for a long time.

III. Functions and Positioning

The module is equipped with two completely independent measurement channels, with electrical isolation between channels and no signal interference. It can simultaneously monitor the radial vibration in both X and Y directions of the same equipment, or separately monitor the operating parameters of two independent rotating equipment. The two sets of data are independently calculated and output. The equipment continuously collects the gap voltage between the shaft and the bearing while measuring the vibration amplitude, converting it into the average operating position of the shaft, achieving dual monitoring of vibration and shaft position, and comprehensively grasping the operating conditions of the bearing and rotor.

The module is equipped with an alarm system with two levels of warning and danger. The alarm threshold for each channel can be flexibly set through the equipment panel or the upper-level monitoring software. When the monitoring parameters exceed the set range, the corresponding status indicator light on the panel lights up, and the relay is triggered, which can be connected to on-site sound and light alarm devices or the unit interlock system to achieve graded safety protection. The equipment supports single-channel or dual-channel bypass functions. During sensor calibration, line maintenance, and equipment maintenance, the alarm output can be temporarily shielded without affecting the normal operation of other monitoring functions, ensuring the continuous operation of the system.

The module is equipped with a complete fault self-diagnosis circuit, which can detect sensor breakage, line short circuit, abnormal input signals, and module hardware faults. When an abnormality occurs, the equipment operation status indicator light goes out, providing a clear indication for maintenance personnel to carry out fault troubleshooting. The module has a sensor signal buffer output interface that can be externally connected to oscilloscopes, data acquisition instruments, etc., for on-site signal verification, equipment debugging, and in-depth fault analysis. This model does not have additional analog output configuration. It focuses on basic monitoring and alarm functions to meet the routine on-site monitoring requirements.

IV. Core Performance Parameters

The equipment uses the gap voltage output by the eddy current preamplifier as the input signal, with a reference voltage of -24V DC. There are two independent input channels, and the high input impedance design effectively avoids 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, 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 of more than 1000rpm/s, as it may cause distortion in the monitoring data.

The full-scale range of vibration measurement for this model is 0 to 250 micrometers peak-to-peak, with a measurement accuracy of ±1% of the full scale. The voltage measurement range is -2V to -22V DC, and the voltage measurement accuracy is ±0.1V. The display resolution of the equipment panel is 0.1 micrometers and 0.1V DC, and the readings are precise and clear. The power supply supports two specifications of -18V DC and -24V DC, and the module has an independent current-limiting protection circuit. The maximum power consumption of the entire machine does not exceed 5W, and the power supply voltage fluctuates within the range of the rated value ±10%. The equipment can operate stably and normally for a long time without interruption.

The alarm function is divided into two levels: warning and danger. Each channel is independently configured. The relay adopts standard industrial configuration, with rated parameters of 24V DC and 1A for the contacts. The contacts support two modes of open and closed. The alarm delay time can be programmed and set within 0 to 10 seconds, effectively filtering out instantaneous interference signals and eliminating false alarms.

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℃, and the relative humidity requirement of the working environment is 5% to 95%. The equipment can operate stably and normally for a long time without condensation inside. The front of the equipment is equipped with an LED digital display, which can freely switch between displaying the vibration values of two channels and the gap voltage. It is also equipped with independent status indicator lights for operation, bypass, warning, and danger. The integrated RS-485 communication interface can be connected to the upper computer of the system to achieve remote parameter configuration, real-time data reading, and alarm status monitoring.

VII. Model Code Explanation

3300 represents the 3300 universal monitoring product series of Bently, 16 represents the XY/GAP dual-channel vibration and shaft gap monitor, 03 represents the full-scale range of vibration measurement as 0 to 250 micrometers peak-to-peak, 02 represents the dedicated sensor input configuration and corresponding circuit specifications, 00 represents no additional analog output function, the first 00 represents no industry-specific certification configuration, the second 00 represents no built-in safety barrier, the last 00 is the standard basic version without additional customization functions.

VIII. Applicable Equipment Domains

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

IX. Installation and Maintenance Key Points

The equipment is installed using the standard rack installation method. During installation, a reasonable spacing is reserved between the modules to ensure ventilation and heat dissipation. During wiring operations, strictly distinguish between A and B channels, the positive and negative poles of the power supply, and the communication terminals to avoid wiring errors that may cause equipment damage or monitoring abnormalities. It is recommended to complete the channel accuracy calibration with the original factory standard probe and calibration tools every six months. After calibration, lock the parameters to prevent unauthorized personnel from mistakenly modifying the settings. During daily operation and maintenance, keep the equipment panels and the interior of the cabinets clean to prevent dust and oil from entering the modules and affecting their performance. Regularly inspect all connection terminals and tighten loose lines to prevent poor contact and signal abnormalities. When a device triggers a fault or abnormal alarm, gradually troubleshoot the problem by first checking the sensors and connection lines, and then detecting the monitoring module itself. When using the low-frequency working mode, it is prohibited from being applied to units with rapid start and stop, to avoid monitoring data deviations. Reasonably lay out the communication lines, keep them away from high-voltage circuits, and reduce the impact of electromagnetic interference on communication and signal collection.