Bently Nevada 330180-51-CN

1. Specification

Power requirement: -24Vdc.  

Load: 10kΩ.

Operating temperature range: 0°C to +45°C (+32°F to +113°F).

Applicable conditions for system accuracy and interchangeability: provisions of system accuracy and interchangeability apply to a situation where the probes utilize an AISI 4140 steel target with a diameter of 31 mm (1.2 inches) or greater, and where the gap between the probe and target is 1.0 mm (40 mils) supplied by Bently Nevada. Therefore, there is full interchangeability between 3300 XL 8mm probes, extension cables, and proximitors, and no matching or calibration of individual components is needed.

Input signal range: it is designed to accept no-contact Bently 3300 XL series 5mm, 8mm eddy current probes and extension cables with frequency response 0-10kHz with a measuring range 2mm, sensitivity 7.87V/mm (200mV/mil)±5％.

2. Feature

Meet high industry standards: standard of the system with 3300 XL of 8 mm 5 m meets the American Petroleum Institute (API) standard of mechanical configuration, linear range, accuracy and temperature stability. The system specification is applicable to high industry standards.

Excellent anti-jamming performance: Bently Nevada 330180-51-CN Proximitors have excellent ability to resist radio interference; even when installed in a fiberglass protective tub, it will not be subject to interference from nearby radio signals, thus ensuring that the measurement signal is reliable and accurate.

Good system compatibility: as one of the core components of the Bently 3300 XL 8mm proximity sensor system, it works well with the same series of probes, extension cables, and monitors in the Bently 3500 series mechanical protection system, achieving high system integration and compatibility. This excellent compatibility allows the user to build an entire condition-monitoring system with ease suited to a specific industrial scenario's diverse monitoring needs.

3. Application

Power sector: Bently Nevada 330180-51-CN is used for monitoring the vibration and shaft displacement of steam turbine generator sets in large thermal power stations. This monitors the collection, through close work with the 3300 XL 8mm probe and the extension cable, of crucial data during the operation of this unit. Minor displacement data disturbance discovered emanating from a small fluctuation of displacement data became the basis of investigations. The situation was then further assessed, showing that this was to do with slight looseness with the bearing seat. Finely timed detection in the power plant allowed thorough repairs before the fault aggravated, thus avoiding possible unit shutdown accidents, ensuring an uninterrupted and stable flow of electricity, and saving large maintenance costs and economic losses due to shutdowns.

Petrochemical industry: Large compressors in the petrochemical industry are crucial for their entire production process. The condition monitoring system of the compressor employs Bently 330180-51-CN to monitor the shaft vibration and speed in real time. During the production process, Bently Nevada 330180-51-CN  promptly captured the sudden rise in the vibration amplitude of the compressor shaft. Response to linked alarms with the system enabled the maintenance personnel to respond quickly. After investigation, it was found that some impurities were attached to the compressor impeller, causing the imbalance. Based on the product's data, maintenance personnel promptly pinpointed the problem and cleaned the impurities so that the compressor returned quickly to normal operation, thus effectively avoiding a complete shutdown of the production line due to compressor failure and ensuring continuity and efficiency of petrochemical production.

Metallurgical industry: The rolling mill equipment in a steel plant is well monitored by Bently Nevada 330180-51-CN. It is tasked with monitoring the vibrations on the shaft and key phase information of the rolling mill rolls. It is reported that in the course of steel rolling, this monitoring system, through Bently 330180-51-CN, detected an abnormality in change of roll's key phase, which indicated that there may be some problematic terms with the drive system. Based on the system monitored data, factory technicians advanced maintenance preparations, and there was a loose connection key. Timely repairs therefore avoided serious failures during the rolling mill's high-speed operation, ensured stable running, improved steel-rolling quality and production efficiency, and reduced production interruptions and steel scrap rates due to sudden equipment failures.