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Bently nevada 330980-71-05 Eddy current preamplifier
The 330980-71-05 is an eddy current preamplifier from the Bently Nevada 3300 series. Its core function is to provide high-frequency excitation for 5mm, 8mm, or 8mm eddy current probes in the 3300 series, and to convert changes in the probe-shaft clearance into a standard DC voltage signal. It is compatible with the 3300/3500 monitoring frame and is used for monitoring parameters such as shaft vibration, axial displacement, key phase, and speed in rotating machinery, ensuring the safe and stable operation of the equipment.
Core Parameters and Specifications
Item Parameters
Product Model 330980-71-05 (3300 Series Eddy Current Preamplifier)
Compatible Probes 3300 Series 5mm, 8mm and 3300 XL 8mm Eddy Current Probes
Electrical Characteristics Output sensitivity adapts to corresponding probes (e.g., 7.87V/mm for 8mm probe), frequency response 0-10kHz, linear range adapts to probe specifications
Power Supply Requirements -17.5V to -26.5V DC, output voltage change less than 2mV for every 1V change in supply voltage
Temperature Tolerance Operating temperature -51~121℃, storage temperature -51~100℃
Connection Interface High-frequency connector for probes and extension cables, supports Miniature coaxial ClickLoc connection
Protection Functions Reverse polarity protection, output short circuit protection, wiring errors will not damage the preamplifier
Certifications Complies with API 670 standard, suitable for industrial rotating machinery monitoring systems
Email: xmxblynn@163.com
Phone: +86 18059884797
Core Functions
Signal Excitation and Conversion: Provides high-frequency AC excitation for the probe coil, converting the coil impedance change caused by the change in the gap between the probe and the shaft into a standard DC voltage signal, achieving linear output of the non-contact measurement signal.
Signal Conditioning and Amplification: Conditions and amplifies the probe signal, improving the signal-to-noise ratio, ensuring signal integrity, and meeting the data acquisition accuracy requirements of the monitoring system.
System Compatibility and Integration: Matches the 3300 series sensor system, supports the 3300/3500 monitoring framework, simplifies data acquisition and analysis processes, and facilitates interface with host computer systems.
Multiple Safety Protections: Protection mechanisms such as reverse power connection and output short circuit enhance equipment reliability and reduce on-site operational risks.
Wide Temperature Stable Operation: Adapts to a wide temperature range of -51~121℃, meeting the long-term online monitoring needs of complex industrial conditions.
Applications and Typical Scenarios
Power Energy: Monitoring shaft vibration and axial displacement of equipment such as steam turbines, generators, and water pumps; works with the 3500 system to achieve fault diagnosis and safety interlocking, conforming to API 670 standards.
Petrochemical Industry: Monitoring the shaft system status of compressors, fans, and gearboxes, collecting key phase and speed signals to ensure long-term operation and prevent equipment failures.
Metallurgical Heavy Industry: Monitoring vibration and displacement in heavy-duty equipment such as rolling mills and coal mills, capturing shaft system anomalies in real time, and avoiding downtime caused by bearing wear, rotor imbalance, and other problems.
General Industry: Monitoring the status of rotating machinery such as motors and centrifuges, facilitating predictive maintenance, and reducing equipment maintenance costs and downtime risks.
System Integration Applications: Adapting to the 3300/3500 monitoring framework, providing accurate and stable monitoring data for equipment health management systems, supporting data analysis and fault early warning.
Email: xmxblynn@163.com
Phone: +86 18059884797
Other related product models recommended:
330980-50-00
3500/72 140734-08
330930-060-01-00
330101-00-12-10-02-00
84661-50
330130-080-01-05/CN
990-04-ХХ-01-05 165335-01
21000-16-05-00-050-04-02
3500/15 106M1079-01
3500/93 P/N:135785-02
3500/70M 140734-09
3500/91-01-01-01 161216-01
3500/15E 164949-01
3500/46M-03-00
3500/40-01-05 176449-01
1900/65A 167699-02
3500/45 176449-04
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