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

I. Product Introduction

The Bentley 3300/16-02-01-02-03-02-02 is a dual-channel XY/GAP vibration and shaft clearance monitoring module under the Bentley Nevada brand of Baker Hughes. It focuses on high-precision online monitoring and comprehensive signal output, mainly targeting the design of industrial precision rotating machinery. This module can simultaneously complete the continuous collection and monitoring of two paths of vibration and shaft clearance, accurately identifying potential faults such as rotor imbalance, misalignment of the shaft system, bearing wear, and deviation of the shaft position. The equipment integrates functions such as data acquisition, local display, hierarchical alarm, standard analog output, multiple compliance configurations, fault self-diagnosis, remote parameter configuration, and data monitoring. It adopts an industrial standard modular frame structure, is compatible with 3300 series dedicated cabinets, has high measurement accuracy, strong anti-interference ability, and stable operation, and is widely used in high-precision key equipment in power, petrochemical, and metallurgical fields, providing integrated protection for equipment condition monitoring, fault early warning, data remote transmission, and safety interlock.

II. Basic Information

This product is manufactured by Bentley Nevada and belongs to the 3300 industrial condition monitoring series. Its model is 3300/16-02-01-02-03-02-02. The equipment type is a dual-channel radial vibration and shaft clearance integrated monitor. Its core functions include dual-channel vibration amplitude measurement, voltage collection of shaft and bearing clearance, calculation of the average position of the shaft, hierarchical relay alarm, standard analog signal output, fault self-diagnosis, remote parameter configuration, and data monitoring. The product is compatible with 3300 XL, 7200 series eddy current probes and their accompanying preamplifiers. The standard probe sensitivity is 200mV/mil, suitable for mainstream sensing equipment in the field. The entire machine is installed in a 19-inch standard frame, which can be directly embedded in the same series monitoring cabinets. The product has multiple industry compliance certifications and safety barrier configurations, and meets relevant electromagnetic compatibility standards, capable of operating continuously in industrial sites with high dust content, complex electromagnetic environments, and significant temperature and humidity variations.

III. Functions and Positioning

The module is equipped with two completely isolated independent measurement channels, and the signals between the channels do not interfere with each other. It can simultaneously monitor the radial vibration in both X and Y directions of a single device, or separately monitor the operating parameters of two different rotating devices. The two sets of data are independently calculated, and the alarm and output logic are independent. While monitoring the vibration amplitude, 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 system position. With its small measurement range and high precision, it can accurately capture minor changes in working conditions, suitable for precise equipment condition management.

The equipment is equipped with a warning and danger two-level alarm system. 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, and the relay outputs a switch signal, which 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 and dual-channel bypass functions. During sensor calibration, line maintenance, and equipment maintenance, it can temporarily shield the alarm output without affecting the normal operation of the rest of the system, ensuring the uninterrupted operation of the monitoring system.

An advanced fault self-diagnosis circuit is built-in, 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, facilitating the rapid troubleshooting by maintenance personnel. The equipment is equipped with a standard analog output interface, which can upload the monitoring data to PLC, DCS, etc., for remote centralized collection. A buffer output interface for sensor signals is reserved, which can be externally connected to oscilloscopes, data acquisition instruments, etc., for on-site signal verification, equipment debugging, and in-depth fault analysis. This model integrates multiple industry-specific certifications and has an internal safety barrier. Combined with a customized hardware version, it can meet the usage requirements for explosion-proof, high-risk working conditions, and specific industry regulations.

V. 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 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, 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 prevent data distortion.

The full-scale range of this model for vibration measurement is 0 to 125 micrometers peak-to-peak, with a measurement accuracy of ±1% of the full scale. The small-scale design further enhances the monitoring accuracy. The measurement range of the gap voltage is -2V to -22V DC, with a voltage measurement accuracy of ±0.1V. The display resolution on the equipment panel is 0.1 micrometers and 0.1V DC, with clear and intuitive readings. The power supply can be selected as -18V DC or -24V DC. The module has an independent current-limiting protection circuit built-in, 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 stably and 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 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 linearity and strong stability, and is compatible with mainstream control system access requirements.

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 screen, 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 for operation, bypass, warning, and danger. The RS-485 communication interface is integrated, which can be connected to the system host to complete remote parameter configuration, real-time data reading, and alarm status monitoring. The module has a safety barrier structure that can be adapted to high-risk industrial environments.

VI. Model Code Explanation

3300 is the general code for the 3300 series products. 16 represents the XY/GAP dual-channel vibration and shaft gap monitor. 02 represents a full-scale range of 0 to 125 micrometers peak-to-peak for vibration measurement. 01 represents an adapter for standard 3300/7200 probe systems, with a standard sensitivity of 200mV/mil. 02 represents a standard analog output configuration. 03 represents multiple industry-specific compliance certifications. 02 represents the built-in safety barrier configuration. The last 02 represents the exclusive hardware version and supporting function configuration. The metallurgical industry can be applied to online status monitoring of equipment such as blast furnace blowers, precision steel rolling units, dust removal fans, etc. It is also suitable for large-scale circulating water pumps in water supply systems and various precision medium and high-speed rotating machinery in industrial and mining enterprises. Relying on high-precision measurement, analog quantity remote transmission, safety barriers and industry certifications, it can work stably in complex and high-risk working conditions, providing reliable support for equipment status assessment, early fault warning, remote data monitoring 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 avoid temperature accumulation affecting measurement accuracy and operational performance. This model is a dedicated module with high precision and integrated safety barriers. During wiring, strictly distinguish between A and B signal channels, positive and negative power supplies, analog output terminals, relay terminals and communication terminals, and strictly follow the marking specifications for wiring. Do not mix or reverse connections. It is recommended to perform channel accuracy calibration using original factory standard probes and calibration tools every six months. The calibration process must follow the original factory operation specifications. After calibration, lock the parameters to prevent unauthorized personnel from modifying them at will.

During daily operation and maintenance, keep the equipment panel and internal cabinet clean, prevent dust and oil from invading the module interior, and regularly check all wiring terminals one by one. Timely tighten loose lines to avoid poor contact causing signal jumps and data distortion. When the equipment gives a fault prompt or abnormal alarm, gradually locate the problem in the order of first checking the sensor, connection lines, and then detecting the monitoring module body. Select the low-frequency working mode. Do not apply it to fast-start and stop units to prevent monitoring data from deviating. Analog quantity lines and communication lines should be kept away from strong power cables to reduce the impact of electromagnetic interference on high-precision measurement. This model has industry certifications and built-in safety barriers. During use, it is strictly prohibited to disassemble, modify hardware and internal circuits privately to ensure the equipment operates in compliance and the safety performance is not damaged.